Tap the + on the Library tab, choose From a PDF, then pick the file from Files or iCloud Drive. Free plan supports PDFs up to 30 pages; Plus goes up to 100 pages.

Two common causes: (1) the PDF is a scanned image with no OCR layer — try a different export from your source app, or use an OCR tool first; (2) the file is too large — split it into smaller documents. We refund credits automatically on generation failures.

Every quiz question you miss — or guess and get lucky on — lands in your Mistake Bank with the confidence level you reported. The Mistake Bank tab shows them ranked by what's most likely to bite you on the exam: confident‑wrong first, then guessed‑right, then unsure‑wrong. Tap "Drill mistakes" to practise just those questions.

Yes — with Plus. The Import tab has a recording option (up to 30 minutes). We transcribe it and turn the transcript into a study set. For lectures longer than 30 minutes, record in chapters or import an existing .m4a/.mp3 file.

iPhone Settings → tap your name at the top → Subscriptions → Learn Fast AI → Cancel Subscription. The current period stays active until it ends; no further charges occur.

Share links are on our roadmap — not yet available in v1. For now, you can use the iOS share sheet to send a screenshot or the source PDF directly.

Inside the app: Settings → Delete account. This permanently removes your account, study sets, flashcards and quiz history. Cloud copies of source files are removed within 30 days. If you'd like a copy of your data first, email us before deleting.

Email [email protected] with as much detail as you can — what you were doing, what you expected, what happened. Including the app version (Settings shows it at the bottom) helps us reproduce.