Privacy
Tongue-tied · last updated 13 September 2026
When you create an account, Tongue-tied syncs your practice data, conversation transcripts and learning profile so they remain available to you. Optional speech features use your microphone. The conversation beta sends live audio and transcripts to OpenAI only after you agree. Tongue-tied never saves conversation audio.
Your account and learning data
Your account uses your email address. Supabase stores the account, recent conversation transcripts, feedback, vocabulary, notes, settings, practice results and personalised learning profile. A local copy remains on your iPhone for fast loading and offline practice. Every learner can access only their own records. Removing the app removes the local copy but does not delete the account copy.
Sentences and audio
The built-in sentences, translations, dictionary entries, and grammar notes work offline. Practice pronunciation uses AI-generated recordings in OpenAI’s Nova voice. The built-in recordings are included in the app and work offline. For a new sentence from your own conversations, the app sends that text to OpenAI through our protected service when audio is requested. The generated recording is stored privately in your Supabase account so it can be reused without generating it again. Deleting your account also deletes those recordings. When you choose the microphone for an exercise, the app requests microphone and speech-recognition permission. Apple's speech recognition turns your answer into text and may require online processing. Tongue-tied does not save an audio recording of the exercise.
Private conversation beta
OpenAI processes live audio to provide the optional AI conversation partner. A protected Tongue-tied service hosted on Vercel starts the conversation and prepares a bounded analysis, but does not receive the live audio. After a completed conversation, the app sends the transcript through that protected service to OpenAI. The result is used for optional feedback, personalised practice, the next conversation focus and recurring learning notes. Tongue-tied does not save microphone recordings or request stored session recordings.
The hosted voice service does not keep its own copy of transcripts or reviews after returning a response. Up to 30 recent transcripts and their learning results are stored in your Tongue-tied account and its local device copy. OpenAI's separate processing and retention policies apply to data sent to its API. See OpenAI data controls.
Service providers
Supabase provides account and database services. Vercel hosts Tongue-tied's protected voice service. OpenAI provides the live conversation partner, transcript feedback and generated pronunciation. Apple provides device speech recognition and optional on-device translation.
Your choices
You can clear conversation learning history without removing vocabulary or ordinary notes. In Settings, you can download your data or delete your account and all Tongue-tied account data. Contact us if you cannot use either in-app control.
What the app does not do
- No conversation audio storage
- No advertising or advertising identifiers
- No cross-app tracking or sale of personal data
Children
The private AI conversation beta is for invited adult testers. It is not intended for children.
Changes
If this policy changes, the updated version will appear on this page with a new date.
Contact
Questions about privacy or the app: hassan.madeeha1989@gmail.com