Last updated: 28 July 2026
Whisperleaf is an on-device voice transcription app. In short: Whisperleaf does not collect, transmit, sell, or share any personal data. Everything happens on your iPhone.
Whisperleaf uses the microphone only to record audio you explicitly start, so it can be transcribed on your device. The microphone is not accessed at any other time. iOS shows its standard recording indicator whenever the microphone is active.
Whisperleaf works entirely on-device, with one exception: it downloads the speech and summarization models it runs. Those downloads are delivered by Apple, from Apple's servers, using Apple's Background Assets system — the same mechanism the App Store uses to deliver an app. Apple's speech recognition uses a small language pack supplied by iOS; the larger Whisper model and the summarizer are downloaded only if you choose to use them, and can be removed again from Settings. Translating a transcript uses Apple's translation packs, which iOS downloads the first time you pick a language — for that language and for the recording's own, since translating needs both — and which are shared with every app on your iPhone.
These are one-time transfers to your device. No audio, transcripts, summaries, speaker names, or any other personal information is ever transmitted from your device — not during a download, and not at any other time. Whisperleaf sends nothing to us, to any AI service, or to any other third party. It contains no analytics, advertising, or crash-reporting services, and no account to sign in to.
Your recordings, transcripts, and summaries are stored in the app's private, sandboxed storage on your device, protected by iOS's standard app data protections. Because the data never leaves your device, its security is governed by your device's own protections (passcode, Face ID/Touch ID, encryption at rest).
Whisperleaf collects no personal information from anyone, including children, and is safe to use at any age. It does not knowingly collect data from children because it does not collect data at all.
If the app's data practices change, this policy will be updated and the "Last updated" date above will change. Material changes will be reflected here before the corresponding app version ships.
Questions about this policy or the app's privacy practices:
Charles Atreides
charles.atreides@proton.me