Voice to text offline on iPhone
Many transcription apps upload your audio to a server. Otofumi doesn't: Apple's speech engine runs on your iPhone, so after a one-time setup you can turn speech into text in airplane mode, underground or abroad without roaming.
Set up once, while you're online
- Connect to Wi-Fi.
- Open Otofumi and choose a language.
- Start a short recording. The first time you use a language, iOS downloads its speech model from Apple. It's large, so Wi-Fi is best. You can keep recording while it downloads.
- Repeat for each language you need. Each language has its own model.
Then, with no connection
- Record with live text on screen.
- Import audio and video files already on your device.
- Search, play back, edit, copy and export.
- Pro keeps working: the app remembers your purchase when it can't reach the App Store.
What actually connects to the internet
Only two things, both Apple's:
- the speech model download, once per language;
- the App Store, when you buy or restore Pro.
Your audio and your text never leave the device. Otofumi has no server and no account. The privacy policy has the details.
Good to know
- Draft summaries (Pro) also run on the device, using Apple Intelligence where it's available and turned on.
- Older iPhones: on models before iPhone 12, Otofumi uses a basic speech engine with lower accuracy.
- Free version: the first 30 minutes of every recording are transcribed, online or offline. Pro has no length limit.