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Importing notes
Paste notes or choose a UTF-8 text file or a text-based PDF. Imports support up to 10 MB, 100 PDF pages and 24,000 extracted characters. Export a chapter or selected pages if your document is larger. Scanned images and password-protected PDFs are not supported in this release.
Using AI cards
Create a deck, sign in, verify your email, then choose Generate. Read the processing notice before continuing. A generation produces up to eight cards and uses one allowance unit. Review each answer against its source: a matching quotation does not guarantee an answer is correct. You can edit, delete or report a card from its editor.
Offline study and backups
Manual cards, saved decks and reviews work offline. AI generation, accounts, purchase restoration and subscriptions need an internet connection. Settings → Export backup saves decks, source text, cards and schedules. Backups do not include review activity logs, account credentials or subscriptions. Import adds missing decks without overwriting existing decks.
Subscriptions
The free account includes three AI generations per calendar month. Plus includes 100, with a daily limit of 15 for both plans. The allowance resets at the start of each month in UTC; unused generations do not roll over. Google Play displays the current local subscription price and renewal terms before purchase.
To restore a purchase, sign in to the same Recall Harbor account used when subscribing and use the same Google Play account. Choose Get Plus → Restore purchases. Pending purchases activate after Google Play confirms payment.
Manage or cancel through Google Play subscriptions. Cancellation stops the next renewal. Account deletion and uninstalling the app do not cancel a subscription.
Contact
Email davilamschool@gmail.com with the app version, phone model and a description of the problem. Do not include passwords, payment-card details or sensitive study documents.