Privacy Policy

Last updated November 2026

This is a plain-language starting draft. It should be reviewed by a lawyer for the countries Nibligo operates in before launch.

What we collect

• Account details: email, display name, password (stored hashed by our authentication provider, Supabase).
• Learning profile: name, age range, country (optional), preferred language, education status, and optionally your school, grade, curriculum and subjects, learning preferences and goals.
• Accessibility settings you choose (such as an easy-to-read font or shorter lessons). You never have to tell us why, and they're only used to change how the app looks and teaches.
• Learning data: courses and lessons completed, your answers to practice questions and the topic progress calculated from them, language lessons, vocabulary and study time.
• AI Teacher conversations: your messages and the teacher's replies, so you can come back to them. You can delete any conversation, or all of them, at any time.
• Conversation data (when voice conversations launch): transcripts only if you keep “Save my conversation transcripts” on, conversation reports, and short character memories only if you keep memory on.
• Billing: if you subscribe, Stripe processes your payment. We store your plan and Stripe customer ID, never your card details.

What we don't do

• We don't store recordings of your voice. Speech in lessons is recognised by your browser.
• We don't sell your data or use it for advertising. Learning, school and accessibility information is never used for advertising.
• We don't send your email, school name or country to the AI provider.

Your controls

• Turn transcript saving and character memory on or off at any time in your profile.
• See and delete everything characters remember about you.
• Download all your data as a file from your profile.
• Delete your account, which permanently deletes all your data.

Children

Nibligo is for people aged 13 and over. If you believe a child under 13 has created an account, contact us and we will delete it.

Service providers

Supabase (accounts and database), Vercel (hosting), Stripe (payments) and Anthropic (AI). When you use the AI Teacher or ask for feedback on an explanation, we send Anthropic your message, recent messages in that conversation, the lesson you're on, and the parts of your learning profile needed to teach you (name, education level and grade, preferred language, learning preferences, goals, any teaching adjustments you've turned on, and your topic progress). Anthropic processes this to generate replies under its commercial terms. Once voice conversations launch, an AI speech provider will process conversation audio to respond in real time.

AI limitations

AI teachers can make mistakes. They're designed to say when they're unsure, but please check important information with a reliable source.