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Open the park from the Parks tab and rub the foil badge with your finger — scratch enough of it away and the park's emblem is revealed and marked as collected, stamped with the current month. You can edit the collected date afterwards if you're back-filling old trips.

No. Scratchbook is a keepsake, not a proof-of-visit system — there's no GPS check. Scratch a park whenever it feels earned. (House rules are yours to set: some people scratch at the entrance sign, some on the drive home.)

The Wildlife tab lists all 29 species in the app, grouped by type. Open a species and scratch its badge to mark it spotted — each one also shows which parks it lives in, the best season, and a spotting tip. Parks show their local wildlife under "Wildlife to spot."

There are no accounts. Your collection is stored on your device and in your own iCloud, so it syncs automatically between your iPhone and iPad — just be signed into the same Apple Account with iCloud enabled on both devices.

If you were signed into iCloud when you used the app before, your parks and wildlife come back automatically shortly after reinstalling. If it doesn't appear: check that you're signed into the same Apple Account, that iCloud Drive is on, then give it a minute or two on a network connection.

Un-scratching is deliberate work, like peeling a sticker: open a collected park or species and remove the check-in from its detail screen. To erase everything, delete the app and remove its iCloud data in Settings → your name → iCloud → Manage Account Storage.

Nothing. No accounts, no ads, no analytics, no third-party SDKs. Your data lives on your device and in your own iCloud — we never see it. The full policy is one paragraph: read it here.

All 63 U.S. national parks, from Acadia to Zion, grouped into six regions — plus 29 species of wildlife found across them. If a new national park is ever designated (it happens!), it'll be added in an update.