Privacy Policy

Last updated 12 November 2026

Saybai is a language-learning app operated by the Saybai team. This policy explains what information the app handles, why, and the choices you have. We keep it short because we collect little.

Information we collect

• Account details: when you sign in with Apple or Google, that provider tells us an account identifier and, if you choose to share it, your email address and first name. With Sign in with Apple you can hide your email, in which case we receive a private relay address. We never see your Apple or Google password.
• Subscription status: whether you have Saybai Premium, which plan, and when the paid period ends. Payments are handled by the App Store or Google Play; we never receive your card details.
• Notifications: if you allow them, a push token that identifies this installation of the app and your time zone offset, so reminders arrive at a sensible hour. Daily reminders are scheduled on your phone itself. If you allow notifications we may also send occasional offers for Saybai Premium and news about new lessons. Reminders and offers each have their own switch in Settings; with both off, the token is removed.
• Learning preferences: the polite-speech style you choose to practise, your reason for learning, and your daily goal.
• Learning activity: which lessons you complete, your accuracy, XP, streak, the words and phrases scheduled for review, and the days you practised.
• Speaking practice: when your speech is checked, we store the text that was recognised and the match score for that attempt. We do not receive or store recordings of your voice.
• We do not collect your location, contacts, photos, advertising identifiers, or precise device information.

Microphone and speech recognition

• Speaking exercises use your microphone only while you are recording an answer, and only after you grant permission.
• Your speech is turned into text by your device's built-in speech recognition, provided by Apple on iOS and Google on Android. Depending on your device and settings, the audio may be sent to that provider for processing under their own privacy policy. The audio is not sent to our servers.
• You can refuse or withdraw microphone and speech-recognition permission at any time in your device settings. Speaking exercises then switch to self-assessment and the rest of the app keeps working.

How we use information

• To sign you in and keep your account secure.
• To save your progress, schedule reviews, and show your statistics across your devices.
• To understand, in aggregate, which lessons work and which need improvement.
• We do not use your information for advertising, we do not track you across other apps or websites, and we do not sell personal information.

Who we share it with

• Service providers that run the app for us: our database and server hosting provider. They may only process your information on our instructions.
• Apple or Google, whichever you sign in with, learn that you signed in to Saybai. We send them nothing about your learning.
• Expo, Apple and Google deliver push notifications: when we send one, they receive the push token and the text of the notification.
• RevenueCat, which manages subscriptions for us: if you subscribe, it receives your account identifier and your purchase details from the App Store or Google Play (which plan, and when it renews or ends). It does not receive your name, email address or anything about your learning.
• Authorities, when the law requires it.
• A successor, if the app is transferred to another operator, who must honour this policy.
• We do not share your information with advertisers or data brokers.

Where it is stored and how it is protected

• Your information is stored on servers in Singapore. If you use the app from another country, your information is transferred there.
• Data is encrypted in transit. We store no passwords, and your session token is kept in your device’s secure storage.
• No system is perfectly secure; if we learn of a breach affecting you, we will tell you as the law requires.

How long we keep it

• We keep your information for as long as you have an account.
• When you delete your account, your profile, progress, review schedule, speaking attempts and activity history are erased from our live database immediately. Residual copies in routine backups are removed as those backups expire.
• Deleting your Saybai account does not delete your Apple or Google account. You can also remove Saybai from the list of apps using your Apple ID or Google account in that provider’s settings.

Your choices and rights

• Delete your account at any time in the app: You tab → Settings → Delete account. This cannot be undone.
• Change your speech style and daily goal in Settings.
• Depending on where you live, you may have the right to access, correct, export or delete your information, and to object to or restrict certain uses. To make a request, contact us using the details below. We will not treat you differently for exercising these rights.

Children

Saybai is not directed to children under 13, and we do not knowingly collect personal information from them. If you believe a child has given us information, contact us and we will delete it.

Changes to this policy

If we change this policy we will update the date at the top, and for significant changes we will tell you in the app before they take effect.

Contact

A contact email will be published here before the app is released.