Support
Write to support@cathedra.study. Say which iPhone and which iOS version, and what you tapped before it went wrong — the more specific, the faster the answer.
The questions people ask
My transcript is empty, or it is in the wrong language
Open the lecture. If it says how few words came back, tap the language it offers — the lecture is read again on your iPhone. The course's language is on the course's Edit screen.
Where is my audio?
On the iPhone that recorded it, and nowhere else. Courses, timetables and transcripts sync through your iCloud; the recordings do not, because a term of audio would fill it.
A lecture landed in the wrong week
Open it, choose Edit lecture from the menu, and change the date. Importing from a week's own Import button files it under that week.
Can I bring in a recording made somewhere else?
Yes. Import any audio file the iPhone can open and it is transcribed like a lecture you recorded in the app. Only the audio track is read.
Does it keep recording when I lock the phone?
Yes. Lock it and leave it on the desk. The Lock Screen keeps buttons to mark a moment, to pause and to stop, and the recording is written in short segments so a crash or a flat battery costs you the last few seconds, not the lecture.
Reporting a bug
Send the model of iPhone, the iOS version, the app version from Settings → About, and what you did just before it went wrong. If a lecture is involved, its length and its transcription language. Do not send the recording itself — we do not want it and cannot use it.
Deleting your data
Inside the app, any recording, transcript, course or term can be deleted on its own, and deleting the app removes everything it made on the device. What has synced to your own iCloud is removed with it, or from Settings → your name → iCloud → Manage Account Storage. If you made an account, deleting it — in the app under Settings › Account, or on your account page here — deletes the copy of your library kept for it.
Cathedra AI and your data
The text of the lecture you are asking about is sent to DeepSeek through our own server so it can answer. And when a lecture has been written down, the phrases that sound misheard — not the lecture — are sent to be checked, so the transcript says what your lecturer said. Signing in is where you agree to this, and one switch in Settings turns Cathedra AI off. Your audio recording is never sent, and our server writes no lecture content to any log.
Cancelling a subscription
Settings → your name → Subscriptions → Cathedra. Cancelling keeps the app working; only the AI answers stop at the end of the period.