I accidentally erased an app that I need
How do I get back and help that I erase
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Best reply
Re-download it from the App Store. It’ll be listed in your previous purchases.
Launch the App Store, tap your round icon in the upper right corner of the App Store app, select Purchases, find the deleted app, and re-download it.
Tap on the following blue-text link for more info: Manage App Store purchases, subscriptions, settings, and restrictions on iPhone - Apple Support