How to delete an apps data on iphone?

I use iCloud backup trick. First offload the app, then reinstall it freshly from App Store without restoring data. That way, the cache is gone.

On iPhone, if you want to remove cached data, some apps allow it inside their settings (e.g., Safari → Clear History & Website Data). For others, you have to delete and reinstall the app.

To clear app data on iPhone: - Go to Settings → General → iPhone Storage. - Choose the app. - Tap Offload App (removes app but keeps documents), or Delete App (removes everything). This is the only way since iOS doesn’t have a “Clear Cache” button like Android.

Unlike Android, iOS doesn’t permit full manual cache clearing. Best option is deleting the app and downloading it again. It refreshes everything and frees space.