
Cathedra
Record lectures. Ask anything.
About
What's New in Cathedra
2.3.0
October 3, 2026
Cathedra 2.3 is for studying together: a classmate's lecture, in your own library. • Share a lecture by link and a classmate adds it to their own Cathedra — the transcript, the summary, the quiz, the mind map and the cards. Everything but the recording. It goes into their course of the same name, at that week's class. • Share a whole course, or the lectures you pick, in one link. Your classmate ticks the ones they want and adds them together. • Tell Cathedra AI what you want before it makes a quiz, a mind map or cards: how many, how detailed, and in your own words — a theorem on the front, its proof on the back. • Cathedra AI now writes flashcards too. • The Lock Screen card wears the app's colours, by day and by night. • If the app closes while a lecture is paused, it now comes back paused and carries on as one lecture; a video or music in the break no longer interrupts it. • Claude and ChatGPT, once connected, can set up your timetable: a course and its weekly classes. Cathedra 2.2 keeps your library in your Cathedra account, lets Cathedra AI do what you ask, and has a new look. • Your library now syncs through your Cathedra account instead of iCloud. Sign in with your email on each iPhone and at cathedra.study to see the same courses, lectures, notes and chats. Without an account, everything stays on this iPhone. • Signing out is one tap. Your library stays on the iPhone and is there again when you sign back in. • Cathedra AI now asks you to sign in, so your subscription belongs to your account. • Ask Cathedra AI to put an exam in your calendar, find the lecture where a topic came up, change a class time or file a PDF under its course. Every change it makes can be undone. • Exams and deadlines a lecturer announces go into your calendar by themselves, and into the iPhone's calendar if you allow it. • With Pro and Max, lectures are transcribed on Cathedra's server while you record, which saves battery, and older lectures are read again on Wi-Fi for a better transcript. You can switch this off in Settings. • Each course learns its own technical terms, and lines the recogniser was unsure of are corrected. Free, and the corrections can be undone. • Max: a practice exam and a study plan for each course, and a whole week in one audio summary. • Audio summaries ask how long they should be and what to focus on. Summaries, quizzes and audio summaries keep being made after you leave the app. • With Cathedra AI, photos of the board are read at full quality, and so are scanned PDFs. • Connect Claude or ChatGPT to your lectures in Settings. • Mark, Pause and Stop are in the Dynamic Island, and on the Lock Screen as round buttons. A lecture paused for the break stays paused. • Transcribe a lecture again from its menu. • A new look: cream by day, warm dark at night, new headings. The app opens in the appearance you chose. • Many fixes to search, reminders, recording and sync.
MoreSubscriptions & In-App Purchases
Cathedra Pro
Ask your lectures questions








