Peanut is a web app, so there’s nothing to download from the App Store or Play Store.
Just open it in your mobile browser and add it to your home screen.
This creates the Peanut app icon on your phone.
Just open peanut.me again and re-add it using the steps above.
If you have issues with:
Open peanut.me directly in your native browser (Safari or Chrome), not inside the PWA.