Legal
Privacy Policy
Last updated: April 14, 2026
The short version
We keep the minimum amount of data needed to run Flunis and help you learn English. We don't sell it, we don't use it to profile you for ads, and you can take it with you or wipe it at any point. Speaking audio is transcribed and then thrown away unless you turn on the “keep my recordings” toggle.
Who's writing this
When we say “Flunis” or “we”, we mean the team that runs the product at flunis.com. Privacy-specific questions go to privacy@flunis.com. A real person reads that inbox.
What we actually store
- The stuff you give us on signup: your email, your name if you fill it in, your native language, your time zone and the CEFR level you picked (or the one the placement test assigned you).
- Your learning history: which lessons you've done, your streak, your vocab deck, the writing pieces you've submitted, transcripts of your speaking sessions, and the feedback the AI gave you.
- Speaking audio: the clips you record during conversation practice, used to turn your voice into text and to score your pronunciation.
- Payment status: whether you're on the free tier or Pro, when your subscription renews, and a masked fingerprint of your card. The card number itself lives with our payments provider, not with us.
- Technical fingerprints: IP address, browser, operating system and crash logs — the things we need to keep the app from falling over.
What we do with it
Your learning data powers the product you see: lesson recommendations, level progression, conversation practice, writing feedback, streaks and certificates. Your payment data is used to bill you and nothing else. Your email is used for transactional messages (verification, receipts, important account changes) and, only if you explicitly opt in, for occasional learning tips.
We don't sell your data to anyone. We don't share it with advertisers. We don't train public models on it.
Speaking recordings, in detail
When you talk to the AI partner, your audio goes to a speech-to-text provider so it can be turned into words. By default we keep the transcript (so you can review your session later) and delete the raw audio as soon as the transcription is done. If you want your audio retained — for example, to re-score your pronunciation later — you can opt in from Settings, and you can change your mind and delete it at any time.
You can also disable speaking practice entirely, in which case no audio leaves your device.
The companies we rely on
Running Flunis takes a handful of external services. Each one gets only the slice of data it needs to do its job, and each is bound by a data-processing agreement.
- Supabase — stores your account and learning data.
- Anthropic, OpenAI — generate the conversations and writing corrections.
- ElevenLabs — gives the AI partner its voice.
- LemonSqueezy — handles payments and taxes.
- Resend — sends the transactional emails.
How long we keep things
While your account is active, we keep your data so the app works. If you delete your account, we wipe your profile, transcripts and learning history within 30 days. The only thing we hold onto longer is the minimum accounting record of your invoices, which we're required to retain for tax purposes.
Your data, your call
You can download everything we have on you from Settings, and you can delete your account from the same place. If something isn't exposed there yet — a specific export, a correction, a question about who accessed what — write to privacy@flunis.com and we'll take care of it within 30 days.
Cookies
We use first-party cookies to keep you logged in and a tiny amount of analytics to see which features actually help people learn. No advertising cookies, no cross-site trackers, no selling session data to a broker.
Kids
Flunis is built for teenagers and adults, and it's not intended for children under 13. If you're a parent and believe your child under 13 has created an account, email privacy@flunis.com and we'll delete the account and any data attached to it.
When this policy changes
We'll email you before any change that actually affects how we handle your data. The date at the top of this page is always the version you're reading, and older versions are available on request.