Frequently asked questions

You get a 15-day free trial with every feature (the most costly ones have a daily limit). After the trial you move to the Free plan: 20 AI chat messages per month, beginner lessons 1-7, the keyboard, the note quiz and camera hand analysis. Paid plans (Essential, Premium, Unlimited) unlock more.

No. You can start with the on-screen keyboard. For the best experience, use an acoustic piano or a digital keyboard: Opttonia listens through your microphone and watches through your camera.

Hand tracking runs on your device. We do not record or upload your camera video. See our Privacy Policy for details.

The app and the coach work in English and French. You can switch language in your profile at any time.

Live voice is included in the free trial and in the Premium and Unlimited plans. Tap the microphone to start a live conversation. Your voice is streamed securely to our voice AI provider for the duration of the session so the coach can answer in real time.

Yes, with limits that depend on your plan. Import MIDI, PDF, Word or text files in Play Along. MIDI files play back exactly; for other formats the AI composes an original piece inspired by the content.

Subscriptions are managed by Apple or Google. Open your App Store or Google Play subscription settings and cancel there. You keep access until the end of the paid period.

Write to us from your account email and we will delete your account and associated data. Details are in the Privacy Policy.

Opttonia is available for iPhone and Android phones. Hand tracking needs a camera and a reasonably recent device.

Opttonia is intended for users aged 13 and over. Younger learners should use it with a parent or guardian who manages the account.