English, Spanish, French, Italian, Portuguese, German, Chinese, Hindi, and Japanese are currently available as learning and interface languages.
Once the required models and content are downloaded, core speech recognition, AI reply generation, and text-to-speech can run on your device without a connection. Sign-in, purchases, ads, syncing, and content updates need internet access. See our Privacy Policy for the full picture.
Hearts are a free-tier pacing mechanic. Starting a new lesson or scenario, or generating new homework, costs one heart. Repeating completed homework does not. Hearts recharge automatically over time, and Sayelle Plus provides unlimited hearts.
Sayelle Plus provides unlimited hearts, unlocks Plus lessons and scenarios, and removes ads. The localized price and renewal terms are shown in the app before you subscribe.
Speech recognition, AI reply generation, and text-to-speech happen on your device, and raw microphone audio is not uploaded. Saved text transcripts and learning progress can sync to Sayelle's backend when Cloud Sync is enabled. When signed in, you can continue on another device. Free-tier users may also see ads. Full details are in our Privacy Policy.
On iPhone, go to Profile → Account Settings and turn off Cloud Sync. Your learning progress, resumable lesson and scenario state, homework, and chat history then stay on your device and are not newly synced or restored from the cloud. Existing cloud copies remain until you choose Delete All Data (for guests) or Delete Account (when signed in). Minimal account, hearts and streak, subscription, and legal records remain where needed to provide those features. See our Privacy Policy for details.
Not yet. Sayelle is launching on iPhone first, with a Google Play release planned after the Android app is ready. No Android release date has been announced.
Subscriptions are managed through the store where you subscribed—your Apple Account or Google Play when Android becomes available. See our Billing & Refunds page for details.
In the app, go to Profile → Account Settings → Delete All Data (for guests) or Delete Account (when signed in) — see our Account & Data Deletion page for details and what to do if you can't access the app.
A voice-first AI language tutor. Speech and AI generation run on your phone; when Cloud Sync is on, saved text history and progress can also sync when connected.