Stop Um, support
Stop Um listens while you talk and beeps each time you hesitate, um, uh and er in English, euh in French, so you hear your filler words the moment they happen. Detection works offline, with no account, on the iPhone. The app is called Stop Euh in French.
Getting help
Write to [email protected]. I built the app and I read every message myself, though there is only one of me and the answer is not always the same day. Your iPhone model, your iOS version and what you were doing make a problem fixable on the first reply.
Worth knowing before you write
It misses some ums and beeps at the wrong time now and then. A drawn out um is caught within about a fifth of a second, a very short one can slip through, and a similar sound can set it off. The sensitivity slider in settings trades one for the other: to the left, more beeps, to the right, fewer false alarms.
Beep or vibration. If the sound bothers you or the people around you, turn the beep off in settings and keep the vibration.
It keeps listening with the screen locked, until you tap the button again. iOS shows the orange microphone indicator the whole time.
The AI coach is optional. After a take, "Analyze with AI" sends the text of the take and its measurements, never the audio, to Anthropic through a relay, and returns written feedback. The app asks for your agreement the first time, and the AI coach setting turns it off. The feedback is written by an AI and can be wrong: play the quoted passage back before trusting it.
There is no account, so there is no history to restore on a new phone. Your takes stay on the iPhone, and deleting the app deletes them. Pro restores from the app's settings and is managed in the App Store settings.