Open Settings (the gear on the home screen), then Plan, then Restore. Clatto checks your purchases with the App Store on your iPhone.

In Clatto, go to Settings › Plan › Manage subscription. Or on your iPhone, open Settings › your name › Subscriptions. Cancel at least 24 hours before the period ends and it will not renew.

Tap the gift link and choose Open in Clatto. Or go to Settings › Plan › Redeem a gift and type the 12-character code (XXXX-XXXX-XXXX). Your year of Clatto Pro starts then, and you are never charged for it.

Every letter you type uses a drop of ink. Spaces, paste and dictation use none. Free ink tops up to 500 characters every morning at 6 AM. You can buy a bottle, and ink you buy keeps. Clatto Pro has unlimited ink.

Tap the typewriter button above a page. Locked typewriters can be tried for a few lines before you choose.

Settings › Writing › Export all pages saves one text file per page. Photos are left out.

The sun button above a page turns the lamp on. Sound and paper are in Settings › Writing.