Privacy & Data Policy

oohula is a language-coaching app made by Die Digitalen GmbH, Switzerland. This policy explains what we collect, why, and the control you have. Questions? Email hello@oohula.com.

The short version

• You can use oohula without an account — no email or name required.
• Your voice is analysed, then discarded: pronunciation recordings are measured on our servers and never stored.
• Coaching is written by Claude, an AI model made by Anthropic, and spoken by ElevenLabs. What you write and say goes to them so the coach can reply. The section below lists exactly what.
• We use anonymous analytics — no advertising identifiers, no cross-app tracking, no selling your data.
• You can delete everything from inside the app, at any time.

Accounts and how you're identified

When you first open oohula, the app creates an anonymous account — an opaque identifier with no personal details attached. To help your progress survive a reinstall or a new device, that identifier is stored in your private Apple iCloud key-value storage (a short token, not your learning data). If you choose to, you can later link Sign in with Apple, Google, or a magic email link to sync across devices — that is the only point at which an email address might be associated with your account.

What we store about your learning

For each language you study, oohula keeps the material that makes coaching personal:

• Your level, goals, and a memory of the patterns and mistakes worth working on.
• The concepts and vocabulary you've encountered, and your session history.
• Usage needed to operate the service fairly (for example, daily activity counts).

This data is kept on our servers so your coach can pick up where you left off. It is tied to your account identifier — not to advertising profiles.

Your voice and pronunciation

When you practise pronunciation, your recording is sent to our analysis service, processed in memory, and discarded once the result is ready. Only a structured result — which sounds were close, which to work on — is kept, so oohula can coach you. We do not keep recordings of your voice.

In hands-free conversation practice and in Talk, your speech is turned into text by Apple's speech recognition — on your device where the hardware supports it, and otherwise on Apple's servers. We don't store the audio. The text it produces is what the coach reads, so it goes to Anthropic with the rest of the conversation and is kept as your session history.

What we send to the AI services that coach you

oohula's coaching is written by Claude, an AI model made by Anthropic, and read aloud by ElevenLabs. Neither of them is oohula, so here is exactly what leaves us and what it is for.

Every time the coach replies, we send Anthropic what it needs to write that reply:

• What you write, and the text of what you say.
• The name you gave us, if you gave one.
• The language you're learning, your native language, your country, your chosen accent, and your level.
• The goal you described, in your own words.
• What oohula has learned about your language so far: the patterns and mistakes it's working on with you, the sounds you're drilling, the words and concepts you've met, and written summaries of your past sessions.
• In Talk, whatever you choose to tell the coach about your life — that surface is a conversation about you, so what you say in it is what gets sent.

We do not send Anthropic your recordings, your email or sign-in details, your payment details, or anything from the other languages you study.

Under our agreement with Anthropic, this content is not used to train their models, and they keep it only for a limited period to run the service and check for misuse. They are bound to protect it to the same standard we are.

We send ElevenLabs the coach's reply, so it can be spoken. That reply is written for you, so it can contain your name or refer to something you told the coach. We send them no recordings and no account details, and they don't train on it.

The other services we rely on

• Modal — hosts our speech-analysis service, which measures your pronunciation recordings in memory and discards them. The recording is never written to disk; only the result comes back.
• Apple — the App Store, subscriptions, the iCloud token used for reinstall recovery, and speech recognition for hands-free practice (on your device where supported, otherwise on Apple's servers).
• PostHog — anonymous product analytics, crash reports, and our server logs, on their EU servers.
• Fly.io — our hosting and database provider (primary region: Frankfurt, EU).
• Mailgun — sends the sign-in email, if you ever ask for one.

Analytics

We use PostHog, on their EU servers, to understand how features are used and to fix problems. These events are anonymous — no advertising identifier, no tracking permission prompt, and no profile sold to anyone. You can turn them off in Settings.

We also send PostHog crash and error diagnostics and our server logs — technical records of what the service did and where it failed — so we can fix problems quickly. These aren't used to profile you.

If you found oohula through an ad on the App Store, we ask Apple's AdServices attribution service once, shortly after your first launch, which Apple Ads campaign the install came from — campaign, ad group, and keyword identifiers only. This tells us which searches bring learners to oohula. It uses no advertising identifier, requires no tracking permission, and is never shared or used to profile you.

Device integrity

To protect the service from abuse and fraud, requests are validated using Apple's App Attest, which confirms they come from a genuine, unmodified copy of oohula. This is a security measure and does not track you.

Your rights and choices

• Access & portability — your learning lives in the app's workspace, browsable any time.
• Deletion — open Settings → Account → Delete Account. This permanently erases your profile, language tracks, vocabulary, sessions, and memory. It can't be undone.
• Sign-in — linking an account is always optional.

If you're in the EU/EEA or Switzerland, you have rights to access, correct, and erase your personal data and to object to certain processing. Contact us and we'll help.

Children

oohula is intended for adults and is not directed to children. We don't knowingly collect data from children below the age of digital consent in your country.

Changes

We'll update this page when our practices change and revise the date above. Significant changes will be highlighted in the app.

Contact

Die Digitalen GmbH, Switzerland — hello@oohula.com.