Free on-device · Standard & Pro cloud. A tutor that asks first. Voo teaches one step at a time, with hints when you are stuck, quick checks along the way and a recap at the end.
Start from where you are stuck. Tap Stuck on a card, learn a whole deck with Voo, or pick a topic and the sources to use. Answer, hint, check. Voo asks one question or step per turn. You get up to three hints, and Show answer is always there. Wrap up. You get a recap of what you covered, what needed a hint and what to do next. Add cards from the lesson only when you press Add. You choose whether quick-check answers count as reviews. It is off by default and asked on each recap. A finished session counts toward your streak. It earns no league XP. At the soft stop, Voo wraps up with a recap and a Continue button that starts a new session. Standard and Pro can also start with no sources, labelled as not cited to your material. The transcript is private and deletable, and expires 90 days after the last message. The recap stays until you delete it. AI chat isn't available to accounts under 13, and for ages 13 to 17 it is available only when Cardvoo has switched it on.
Free plan: on-device sessions, up to 3 a day, 10 minutes or 10 turns each. Standard and Pro use the cloud, with sessions of about 15 minutes or 20 turns.
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