Your tutor is AI. You stay in control.

The face and voice are generated by a computer. They are not a person watching you. The tutor can explain your selected page and ask practice questions, but can misread it or give a wrong explanation. Check important facts with the page or a teacher.

Before you speak

Only start if you want to talk. Your microphone starts after you press Start and allow it in your browser. Your camera stays off. Do not say your full name, school, address, password or other private information.

You can stop at any time

Mute stops your microphone, but the conversation timer can keep running. Pause or End closes the connection and stops further conversation time. Time includes listening and thinking while connected. Your normal lesson stays available. A parent can switch tutoring off in their tutor settings.

If something is wrong

End the conversation and check the answer with a teacher or trusted adult. You do not need to tell the tutor personal details. Nobody is promised to be watching or listening live. For immediate danger call 999; you can also contact Childline on 0800 1111. See human help routes.

Photos, pages and conversations

These features are in a controlled, adult-managed test for profiles declared aged 13–16 at creation. General public AI access is not open.

Schoolwork: selected photos or PDF pages are sent as prepared images to OpenAI for explanations, questions and source checks. The original PDF and unselected pages stay on your device. A typed answer is sent only when you ask for feedback.
Tutor: starting a conversation sends microphone audio, temporary conversation text and readable evidence from your selected lesson to OpenAI. When an ElevenLabs voice is selected, only the tutor’s checked text is sent to ElevenLabs to create speech; it does not receive your microphone audio or uploaded images. The configured avatar provider receives the AI tutor’s generated speech to animate its face. In the Spatius preview, speech is sent through our server and the face renders on your device. Downloading its avatar assets exposes connection information, such as your IP address, to Spatius’s delivery infrastructure. Your camera is not used.
Our storage: How2Revise does not save raw microphone recordings or conversation transcripts. Short conversation context stays in the open tab for Pause and Resume. We keep session identifiers, durations, token and speech character counts, connection outcomes and credit transactions. These are usage records, not a recording of what you said.
Lesson storage: credit-backed scan recovery content is encrypted for up to 24 hours; an explicitly activated no-card lesson can be reopened for seven days. An optional encrypted device chapter expires within 30 days of generation. These copies contain generated lesson material and source excerpts; device chapters can also contain prepared photos. Raw typed answers are excluded. Read the storage and deletion details.

Provider handling is separate from our storage. OpenAI’s API documentation says API content is not used for training by default unless the customer opts in. Standard abuse-monitoring retention can be up to 30 days, with stated legal and safety exceptions. Requesting store: false does not establish zero retention. We have not verified a special zero-retention arrangement for this deployment.

ElevenLabs applies its standard processing and retention when its voice is selected. This preview does not use ElevenLabs zero retention mode. The Start notice identifies when ElevenLabs receives the tutor’s checked text.

The Spatius integration sends only checked tutor speech for motion generation; it does not send your microphone or uploaded image to Spatius. This does not establish zero retention or permission for general child use. The Spatius preview remains restricted to the owner’s controlled tests while its contractual and privacy review is completed. Use non-personal test pages and avoid private details in speech.

OpenAI API data controls · ElevenLabs privacy information · Spatius privacy information · Spatius terms · LiveAvatar mode and session retention · HeyGen business terms · HeyGen Data Processing Addendum · HeyGen privacy information · Privacy and rights

Reviewed against implementation: 10 October 2026. This explains the current technical preview; it does not certify that public-launch reviews have passed.