Tuesday, April 21, 2015

3 Ways to Erase iPhone Data Permanently Without Losing Jailbreak

This a truth story: "I want to permanently delete all data, contacts, music, pics, videos ever stored in the iphone. I know when you sometimes do a delete, its gone but theres a way to retrieve it as there awlays some sort of back up with another back up and such. What is the best way to totally delete all traces of all data stored on the phone? and how can I erase iPhone text messages, contacts? "--Ask by Danlyshred

Jailbroken iPhone benefits you a lot. You can download a world of apps which are not available in Apple App Store, access the iOS system, and change wireless providers. However, there is one thing you have to face: whenever you need to restore your iPhone, the jailbreak features will be lost. However, tt's hard not to delete iPhone data if you have lots of personal information on your iPhone. Don't worry about it. There are still workarounds to erase iPhone data without losing jailbreak Check out the following 3 simple ways to delete iPhone data without losing jailbreak.

Erase iPhone Data Permanently Without Jailbreak
Solution 1: One click to erase your iPhone data without losing jailbreak

You don't have be tech-savvy to know how to erase data on a jailbroken iPhone. The only requirement for you is to choose the right tool to do the task for you. iPhone Data Eraser software enables you to erase junk files, private data or all data on your jailbroken iPhone without losing jailbreak. It's fully compatible with iPhone 6 Plus, 6, 5S, iPhone 5C, iPhone 5, and iPhone 4S running the latest iOS 8, iPhone 4 running in iOS 7 and above, iPhone 3GS running in iOS 6.1.6. You can download it to have a try. Below are the simple steps to erase iPhone data with this program.First of all,you need to download the iPhone data eraser:

Download Windows Version  Download Mac Version   

Step 1 Connect your iPhone with your computer

Download the right version of iOS Data Eraser for your computer. Launch it and connect your computer with your iPhone via the USB cable.
wipe iphone before selling


Step 2 Erase iPhone data without losing jailbreak

In the left sidebar, all features for this tool are listed. You can use it to erase junk files, private data, deleted files or even all data on your iPhone. Choose the right feature you need.

Express Cleanup: clean junk files, like log files, photo/video cache, iTunes syncing cache, download temp files, app cache, app cookies, app temp files and more.
Erase Private Data: safari cache, safari history, safari cookies, keyboard cache, message, message attachments, call history, notes, photos, etc.
Erase Deleted Files: messages, iMessage, contacts, call history, facetime, calendar, reminders, notes, safari bookmarks, photos, videos and so on.
Erase All Data: erase all data on your iPhone, setting it as a new phone.


Free download the iPhone data eraser tool:

Download Windows Version  Download Mac Version   

Solution 2: Erase your iPhone data permanently without losing jailbreak (Only for iOS 5.0-6.1.2)

This solution is based on Semi-Restore, and it's only for iOS 5.0-6.1.2. If you're using other iOS versions, please don't follow this guide. You can download it by clicking the link provided ahead.
Step 1. Unzip the package that you've downloaded and run the EXE file present in it.
Step 2. Connect your iPhone to the computer and wait for a moment, until the program detects it.
Step 3. Click on the button at the right of the progress bar and do the work following the description.
Step 4. During the process, your iPhone will be reboot a few of times. When it's complete, you can get a clean iPhone with no data, but a intact jailbroken iOS.

Solution 3: Delete iPhone data without losing jailbreak (only for an jailbroken iPhone)

If you're looking for an app working on your iPhone, you can try iLEX RAT, which can be downloaded from the Cydia store. What you should know is that this app can help to deleted all data but stock apps and data from your jailbroken iPhone, but it does keep your jailbreak original. If this is what you need, please move forward.
You can use a data eraser to erase everything on iPhone permanently without resotre.

Step 1. Download and install the iLEX RAT on your iPhone from the Cydia store.
Step 2. Then you need to find and install MobileTerminal on your iPhone, searching it in the Cydia store.
Step 3. Respring your iPhone and run MobileTerminal.
Step 4. Type rat in the command area. Then a long list of options will be presented. To delete your iPhone data, you can choose the option 12.
Step 5. Confirm your choice by clicking on YES when the tool asks for your verification.
Step 6. Wait for the process to finish, and reboot your iPhone when prompted to do so.
When your iPhone is reboot, almost everything on it has been deleted except the iLEX RAT and stock apps.

Read more:

How to Wipe Junk Files from iPhone iPad

Delete text messages on iPhone permanently

How to Delete app cache, cookies and temp files from iPhone

If you want to speed up your iPhone,you can clear app cache, cookies and temp files from iOS devices,or delete those unwant photos on iPhone permanently.

This article mainly teach you how to remove Apps Caches from iPhone permanently,so that speed up your slow iPhone.

Apps on mobile devices tend to occupy a lot of space over time. With every bit of use, these apps accumulate huge chunks of data, some of which become useless (junk) as time goes by. But it’s not recommended to keep them (app cache, cookies, temporary files, log files, etc.) on mobile devices because of their limited storage, especially when the available space tends to be low.



How to erase junk files from iPhone

On iOS, junk files are cleaned up automatically when the device nears its storage limit. However, you might want to clean up these files manually for maintenance purposes. Here are a few tips that will help you to remove unnecessary app data without jailbreaking your iOS device, and thus, free storage space on iPhone and other iOS devices.

Apps accumulate a lot of data over the course of time with usage. This data can be regarded as non-critical, since it can be easily regenerated. However, this data also includes files that store unsaved progress in apps. Deleting such files may thus remove any unsaved tasks from your device.

Such data may be classified into four broad categories:

Cache: Apps often store data locally from where it can be quickly fetched. This locally stored data is known as cache. Data which is not present in cache need to be read from the original source, which usually takes longer compared to accessing data from the cache. Cache files help to improve app performance, but occupy a considerable part of the device storage over time.

Cookies: A cookie is a piece of data stored on your device that helps to maintain the app state and its connection with the server. Cookies store information about your login, preferences and other personal data. They also help maintain the user sessions within apps.

Error Logs: In the event of an app crash or an error, logs are created that record the incident. These logs may be helpful to developers for debugging purposes to find out the cause of the crash event.

Temp Files: Apps create temporary files during their operation. These files are rarely used afterwards and some of them remain on your device.

Clean up junk data from app settings



Some apps on iOS allow you to perform clean up of app cache, cookies, temporary files, etc.  For example, most web browsers for iOS have the option to clear cache and cookies in the respective app settings. If you want to know how to clean up cache and cookies from popular iOS web browsers, check out this page. Some other apps also provide similar clean up options. But you need to manually check them since the availability and position of such options varies among different apps.

Clean up junk using memory management apps

Clean up junk files on iPhone
With the new version of iOS, it is now possible for apps to access and clean cache and temporary files belonging to other apps. This allows developers to create apps for memory management, which can clear data from apps, much like the ones found on Android. The latest version of Battery Doctor is one such app which takes advantage of cache memory access to clean unwanted junk files from your iOS device (eg. iPhone, iPad).

Clear app cache using iPhone Data Eraser tool:

Step 1. Connect iPhone or iPad to computer

Step 2.Choose "Express Cleanup" option to wipe iPhone junk files
Erase Junk Files from iPhone iPad on Mac Without Restore

Step 3. Permanently Erase Junk Files on iPhone

After scan is finished, the file is found will be listed before deleting, you confirm that you want to delete the best preview, and then select the required cleanup.Then Clicking "Erase Now" button means they will never be recovered.

Permanently Erase Junk Files on iPhone with ios eraser
Clear App Data using iTunes

One of the easier ways to clear an app’s “Documents & Data”, is to uninstall the particular app and then re-install it again. The freshly installed app won’t contain any additional (junk) data. You can uninstall and re-install apps from your device itself, but doing so from iTunes saves you the trouble of re-downloading them, if offline backup is available.

Wednesday, April 15, 2015

Erase iPhone Data on Mac Without Restore

Erase iPhone data on Mac and give it away
"I bought a new iPhone 6 Plus last wek,and now I want to give away my old iPhone 5 to my brother, before doing that, I want to erase all data and settings on my iPhone 5 on Mac, how can I do, I need to permanent erase my iPhone contacts,sms,photos and other data with restore."--Ask by Rula

Delete data from iPhone before selling it
"At that time I replace my iPhone 4s with iPhone 6, I think the screen of iPhone 6 Plus is too big, so I chose the smaller screen iPhone 6. But now I have a little regret, and I think the big screen iPhone 6 Plus is more suitable for me, therefore, I want to buy another iPhone 6 Plus, and resell my iPhone 4s to my friend. But I was looking for a secure way to permanently erase data from iPhone 4s on Mac before reselling it, which without restore. I tried a lot of ways, including restoring to factory settings, however, it is disappointing that many of private data can still being recovered by a recovery tool. I just want to ensures that my information is ended at my hand regardless of whose hands my device falls into. How can I wipe all iPhone data on Mac without restore, please help!"--Ask by Sunny

If you want to sell the old iPhone, and buy a new iPhone 6 or iPhone 6 Plus. Please remember permanently erase data from iPhone before you resell your old iPhone, because there are still a lot of data and private information storing on your iPhone, including notes, contacts, music, photos, videos, calendar, apps, account info, passwords and other personal information. However, if you think this is the best way to permanently delete iPhone data by using the default erase setting built in iOS, or restore factory setting to erase iPhone information, this is wrong, because some data recovery in market can recover those erased data back with a professional iOS data recovery,like Dr.Fone iPhone Data Recovery software(Windows&Mac).

Erase iPhone Data on Mac Without Restore
Permanelnty Erase All Data from iPhone on Mac

This iPhone Data Eraser (Mac&Windows) is a useful and popular data eraser tool for ios devices, which can permanently erase everything on iPhone, as well as iPad and iPod touch, to prevent identity theft and clear junk files. Besides, the iOS Data Eraser for Mac can also compress photos, uninstall unused apps, erase private data and erase deleted data, so as to free up space on your iPhone. Now, clicking the below button to download a corresponding version for your device, and try wiping your iPhone data on Mac permanently.

Download Windows Version  Download Mac Version   

Erase iPhone Data and Settings on Mac Permanently

Step 1. Connect your iPhone to computer


After connecting your iPhone to computer with a USB cable, your iPhone will be detected by iPhone Data Eraser automatically.

Step 2. Choose "Erase All Data on Device" in the window of program


Step 3. Start to earse all data on your device now


Step 4. Use your device as a new one


iPhone Data Eraser for Mac and iPhone Data Eraser for Windows provides the easily way for you to erase your iPhone data, when you finish all the steps according to the above steps, you are surely get a totally new iPhone now and you can sell it with no worries.

Download Windows Version  Download Mac Version   

iPhone iPad Data Eraser for Mac&Windows:

-Clean up Data & Safeguard for Ultimate Privacy Protection
-Wipe EVERYTHING from iDevices: contacts, messages, photos, videos, apps, account info, passwords and other personal data stored on iDevices.
-Meets Mil-spec DOD 5220 - 22 M standard for permanent data destruction; prevents personal data from being recoverable.
-Works with all iDevices - Compatible with jailbroken iPhone & carrier-locked iPhones.
-Keep your personal information inaccessible to others, permanently remove it with iPhone Data Eraser prior to disposing of your old iDevice.

Tuesday, March 31, 2015

Erase iPhone Data,Wipe Data from iPhone Permanently Before You Sell it

iPhone "Restore" does not delete personal data! - Warning From CNET

Then before selling your iPhone, you should erase all personal data on your iPhone first. This article mainly teach you how to erase personal data on iPhone permanently before selling.

So the new iPhone just came out and you're ready to sell or trade your old one for the latest shiny version. Wait a second, your whole life is on that phone. You wouldn't want to just hand over your phone with all your e-mails, contacts, music, photos, videos, and other personal stuff on it would you? Probably not.Before you start camping out in the mile long line at the store you're going to buy

Follow these simple steps to make sure that every trace of you and your life has been wiped from the phone:1. Make a Backup of your iPhone's dataYou may not have synced your iPhone to your computer for awhile so you may not have a current back up. If your getting a new iphone you will want to make sure that your old one is backed up so that when you restore the data to your new phone, everything will be current, and you won't have to start from scratch.Depending on which version of iOS your using and your sync preference settings, you will either backup to your computer or the iCloud service.Currently the iCloud service will backup almost everything that you need to restore your iPhone, but it is possible that some apps may not support backup to the iCloud. Also, some older phones such as the original iPhone and iPhone 3G don't have access to the iCloud service so we'll backup using the iPhone's docking cable. For more information about the iCloud method checkout how to erase iPhone data permanently.

1. Connect your iPhone to the computer you normally sync it with.2. Open iTunes and click on your iPhone from the left-hand navigation pane.3. From the iPhone's page on the right side of the screen, click the "Back up to this computer" check box.4. Right-click the iPhone from the window pane on the left side of the screen and click "Back Up" from the pop-up menu.Note: If you have purchased some items on your phone and haven't transferred these purchases to your computer yet, right-click the iPhone and choose "Transfer Purchases" to transfer the purchases prior to backup.Make sure the back up process succeeds before performing the following.

Wipe Data from iPhone Permanently Before You Sell it
steps:2. Erase all your iPhone's data and settingsSince you don't want whomever gets your phone to have access to your personal data you'll need to wipe the phone clean of all of your personal data. Follow these instructions to clear the data off of your phone.

1.Tap the settings (gear icon) from the home screen (or whatever page it happens to be located on your iPhone).
2.2. Tap the "General" settings menu item.
3.3. Choose the "Reset" menu item.4. Tap on the "Erase All Content and Settings" menu item.The process can take anywhere from a few minutes to several hours, so it's probably something that you don't want to do while your waiting in line to trade your phone in.I found the hard way that just because you wiped your iPhone's data doesn't mean that everything linking you to the phone has been removed. There are some apps that may still be linked based on your phone's unique hardware ID.

The Best Way to Erase iPhone Data Permanently with iOS Data Eraser without Restore

Permanently Erase Everything Stored on iPhone with this iPhone Data Eraser software,which allows you permanently erase everything from iPhone before selling,it support erase everything on iPhone permanently,as well as iPod or iPad within several clicks. Then all your data, including account credentials, app data and documents are gone forever. No data recovery software available on the market can recover a single piece of your data on your sold device. Your data is 100% in private!

Step 1 Install iPhone Data Eraser


Step 2 Connect iPhone to a PC and Select Right Earsing Option

Step 3 Start Analyzing and Scanning the Data on Your iPhone.

Step 4 Privew and Select the Data You Want to Erase


Step 5 Start Erasing Everything on iPhone

Input 'delete ' and click Start Button to confirm that you are going to erase all the data on the iPhone. Then the program starts erasing apps, music, videos, photo, contacts, SMS and other files stored on the device. It only takes a few minutes to complete the task.

I sold an old iPhone to a friend of mine and completely wiped my data using the method above, however, he informed me that my Pandora account was still linked as he was seeing all of the Pandora channels I had created. He said that the same was true for several other apps as well.If you use any apps that allow you to authenticate based on your iPhone's unique hardware ID, you should visit the apps websites to unlink the phone to your account. You can link your new phone to your account after you install the apps on your new iPhone.

Saturday, March 14, 2015

How to Permanently Erase Data on iPad iPhone without Recovery

To ensure that the deleted data cannot be recovered by any data recovery app, a reliable data delete tool is in needed, here I strongly recommend this data eraser: iPhone Data Eraser. iPhone Data Eraser is such a powerful software, which can help iPhone users to completely and permanently delete iPhone contacts, text messages, photos, videos and more. All the erased files are 100% unrecoverable. iPhone Data Eraser is compatible with iPhone 6/6 Plus/5S/5C/5/4S and more, as well as iPad and iPod touch.

Erase data on your iPhone and iPad permanently withou restore
To prevent it from happening, it’s highly recommended to delete all kinds of data stored on the iPad before selling it out. The default factory reset seems not working well after my personal tests on my iPad. My advice is to avoid this method as possible as you if you really cared about your personal data. My recommendation is to use iPad iPad Data Eraser to erase everything on iPhone permanently as the program has advanced features to delete data permanently.

The prince of this program is to write a set of random digits to iPad’s local disk to overwrite existing content stored on the device. So the old content will be replaced by new ones. After doing this task for a few times, the hard disk has been filled several times, and this guarantees all of the previous data are 100% non-recoverable by any given software. Download and install the software from the following link. Open the program and below is a step by step tutorial on how to permanently delete everything on iPad 2/3/4/Air, iPad Mini and iPhone 6/5s/5/4s/4.You can erase data on iPad permanently without restore.

Download Windows Version  Download Mac Version   

How to Permanently Wipe Everything on iPhone/iPad Air/3/Mini/4

Step 1 Plug iPad or iPhone device to a Computer

Use the USB cable to connect your iPad to a computer, which has iTunes and USB driver installed to make sure the device being recognized by the program. When the device is well attached to the computer, the program will detect it automatically and list some brief information about the device.


Step 2 Select an Erasing Option You Need

Currently, there are 4 erasing methods available, which you can see from the sidebar. As we need to remove everything stored on the iPad, choose the option of Erase All data located at the bottom of the sidebar. For other erasing options, you can use them accordingly.


Step 3 Analyze and Scan Your iPad/iPhone Device

The program will deep scan and analyze deleted data on your iPad device, you will see all deleted data still remains on the device. The software will only erase deleted data and will not affect existing data. The whole scanning process will take a few minutes based on the size of the data.


Step 3 Preview Scanned Data and Start Erasing

You have to input ‘delete’ in the text field of the main screen to confirm that you are going to erase all data stored on the device and this data is no longer available after this operation. Click Erase Now button to start the deleting process. Then iPad apps, music, videos, photos, caches, contacts and other items will be removed totally. Then entire process takes a only few minutes to complete.



When you did what the above tutorial tells, then your iPad will be a new one. Previous data will 100% wiped out and there is no single method to get it back, even for FBI agents. The program adopts the most sophisticated algorithms to make sure all the data being deleted totally and no footprint is left, which means the data is not recoverable at all.

Free download the iPhone iPad data eraser:

Download Windows Version  Download Mac Version   

Your privacy data is well protected and you don’t need to worry about it anymore! If you intend to sell or give your iPad to another user, it's prudent to erase all its content and settings, returning it to its factory default. This can also be a useful procedure to test the iPad when troubleshooting.
Read more: how to delete SMS on iPhone permanently

Wednesday, February 4, 2015

How to Delete iPhone SMS, Contacts, Photos Data without Restore?

“please help me! last night i downloaded the io8 update to my 4s iphone and now its stuck on *connect to itunes* when i tried to it said i cant download the update without restoring my phone. can i somehow do it with our erasing my things?”--Ask by tayfromthebay in discussions.apple.com

Are you getting ready to sell your old iPhone, or give it to a friend? Was your iPhone lost or stolen and you want to keep sensitive personal information out of the wrong hands? Follow this guide to completely erase and reset your iPhone, even when you can't find it.

erase everything on iphone without restore
It is really necessary to erase everything on iPhone permanently before you selling it on eBay because you will never know who will get your iPhone and what he will do with your private data. Since restoring the device to factory settings is useless, why not use a professional iPhone Data Eraser software. With this data eraser for iPhone tool, you can easily wipe contacts, SMS, phone numbers, user names, passwords, emails and many more from iPhone 6/5S/5C/5/4S/4/3GS directly without restore.

Below is the detailed guide showing you how to erase everything on iPhone without restore by using iPhone Data Eraser tool:

Download Windows Version  Download Mac Version  

Wipe iPhone Data Without Restore - Delete all files on your iPhone permanently
An advanced technique to erase all contents /files from iPhone, a more secure method than iPhone default factory reset. iPhone 6/5S/5/5C/5/4S/4 are well supported.You can delete contacts, SMS, phone numbers, user names, passwords, emails,ect on iPhone permanently

How to Delete All Data on iPhone without Restore?

Step 1 Run the iPhone Data Eraser on your computer

Download the .exe file from below download link and double-click the file to begin installation process. There is a built-in wizard guiding you through the entire process. After that, the software will be opened automatically and a shortcut will display on computer desktop.

Run the iPhone Data Eraser on your computer
Step 2 Connect iPhone to a PC and Select Right Earsing Option

Plug the iPhone to computer via USB cable. The program will detect the device once it was well connected. Then you can proceed to the next step. However, if the program can’t detect the device, please make sure iPhone USB driver and iTunes are installed properly on the computer.

Note: The program offers 4 erasing option for your different demands: "EXPRESS CLEANUP", "ERASE PRIVATE Data", "ERASE DELETED FILES" and "ERASE ALL DATA". You can select the appropriate option and give it a try. As we want to erase everything stored on the iPhone, so the first method is preferred in this case. Select Erase All Data from the sidebar, which leads to the next step.

Connect iPhone to a PC
Step 3 Start Analyzing and Scanning the Data on Your iPhone.

In this step, it will automatically analyze and scan all your deleted files in your iPhone device; generally it takes few minutes to complete the process depending on the file. After scanning – select the deleted data to view detailed information on the file.

Scanning the Data on Your iPhone
Step 4 Preview and Erase All your iPhone data

After scanning, all deleted data will be scanned out and presented as details, by default, all files will be selected. Unselect the files you wish to keep.

Start to Erase All your iPhone data
Step 5 Start Erasing Everything on iPhone

Input 'delete ' and click Start Button to confirm that you are going to erase all the data on the iPhone. Then the program starts erasing apps, music, videos, photo, contacts, SMS and other files stored on the device. It only takes a few minutes to complete the task.

Download Windows Version  Download Mac Version   

Tips: Before use this iPhone data eraser software to wipe all iPhone data,you can get them back any more.However,please remember backup your important contents from iPhone to computer,here,we recommend you use this iPhone backup software,which allows you transfer contacts,sms,photos,videos and other data to computer directly without data losing.

If your iPhone run slow,you can also use this iPhone data eraser software to  free up iPhone space, and make you iPhone device run more faster.

Monday, January 26, 2015

How to erase data from iPhone 6, iPhone 5s/5 and free up space

Want to Delete Data from iPhone Permanently Without Jailbreak or Restore Factory Setting,then free up space for your iPhone? This article mainly teach you a easy way to wipe those useless files, app caches on iPhone permanently,then free up space making it runs more faster.

Want to erase data on iPhone and free up space on iPhone. Here we recommend you iPhone Data Eraser for a try. iPhone Data Eraser can help you delete EVERYTHING from iPhone permanently: contacts, messages, photos, videos, apps, account info, passwords and other personal data stored on iDevices. And in three security standards, free you from info leak concerns

Erase data from iPhone 6 permanently
Erase data from old iPhone before selling,or give it away to your family or friend

Erase your data on your old iPhone that you are going to give away to your family or friend, or erase all your personal information from your iPhone 6/6 Plus/4/4s/5/5c in order to avoid privacy leaks before you send your iPhone for repairing. However,you need to use a third-part iPhone data eraser software to remove all data permanently, this ios data eraser softare is recommended for to erase all data on iPhone,as well as iPad and iPod.What’s the key feature in the iPhone iPad data eraser software?

Download Windows Version  Download Mac Version  

-Clean all your iPhone files, including photos, account passwords, contacts, etc.
-Wipe your data on your iDevices via 4 modes along with 3 erasing levels
-Supports all iOS devices, including iPhone, iPad, iPod
-Permanently delete your files from iDevice and prevent them from being recovered
-This software is not only compatible with iPhone, but also supports other Apple digital devices like iPod Touch and iPad. It even works with the carrier-locked iPhone and jail-broken iPad. So it is also regarded as an ideal iOS "cleaner" application.

For more details, let’s teach you how to Delete iPhone Data Permanently:

Step by Steps to Erase Data from iPhone Permanently:

Step 1 Install and Run iPhone Eraser Program

Download the software through above link and install it on a computer with built-in wizard. The software will be launched automatically when the installation is completed. Then plug your iPhone into the computer via Apple unique USB cable. The program recognizes the device immediately once it’s well connected. Make sure iTunes is pre-installed on the computer. The main screen is shown like follows:

Currently, there are four earsing options available: "Express Cleanup" "Erase Private Data" "Erase Deleted Files" and "Erase All Data".

Erase all Files on iPhone
Step 2 Choose the Erasing Option and Start to Scan (Erase Private Data)

In most cases, you should choose the "Erase Deleted Files" method, which will erase all of the deleted data permanently. The "Erase All Data" option will remove all files including: existing and deleted files, like photos, SMS, videos and call logs. It will take a few seconds to finish the whole scanning process, please be patient.

Choose the Erasing Option and Start to Sca
Step 3 Select Messages or Other Files, Start to Erase

Once the scan is complete, all the existing private data will be organized by category, you can select items listed under private Data to view data details. You’re allowed to erase multiple data at a time by selecting check box. Erasing process will not have any impact on your current data and device, very safe!

Select data and erase them permanently
Free download the iPhone data eraser tool:

Download Windows Version  Download Mac Version  

Well done,you have deleted all useless data on your iPhone permanently,now your device used as new one.You know simple deletion is not enough; "Erase Deleted Data " optioin is the most effective and safest data erasing solution whih is captable of permanently wiping data from iPhone device. Even you select the lowest level, it’s still safe for you data in most cases.
If you want to Erase Deleted Data on iPhone Permanently,please read more in this use guide about How to Erase Deleted Data from iPhone.

If your iPhone run slow,this article about how to free up space on iPhone, and make you iPhone device run more faster.I hope this article can help you,if you have any question,please ask any question in the message board below.