How do I fully wipe an app from my iPhone so it doesn’t retain any data on reinstall?

What is the app?

Some apps such as SnapChat are able to detect your device and stores your previous information on their servers. That is how they and other Social Media apps can ban your device from their service. They would know your username, but not your password. The Password is only available on your device and if it autofills, then you have it saved at Settings > Passwords.

There are only 3 places your data would be stored:

• On your device, which would be removed when deleted.
• In iCloud if the app supports storing data in iCloud. You can check at Settings > [name on top] > iCloud.
• On their own servers.

Try going into Settings>General>iPhone Storage.

Scroll down to the app, tap it, and tap Delete App.

That will wipe the app and all in-app data from your phone.

Did you re-boot the phone in between deleting the app and re-installing?

Check the passwords app to see if it's saved a password for it in there. If it did, delete the entry.

Aripicnic wrote:

Hi ! thanks for the quick response. The app does not support storing data un iCloud (at least I cannot see it in the Settings).

The one thing left I'd to try is to download the App again from AppStore instead the one cached on my iCloud.

Is there a way to force that?

Apps are not stored or cached in iCloud. You see the iCloud symbol in the App Store just to let you know that you have downloaded it previously. When you tap that in the App Store or redownload from your History, you are getting a clean install of the latest version of the app.