Anton, out.
Futura Bold, in.
Every screen below is the real app, shot on the phone. Old on top, new underneath — on a wide screen they sit side by side.
iPhone already has Futura. Apple ships it with iOS, so this is the real Futura Bold — nothing to buy, nothing to add to the app, no extra weight. Android doesn't have it and falls back to Jost, which is a proper Futura revival (this page's headings are Jost, so you can see how close it is).
Pick an instrument
The screen you circled.
Progress
The other one you circled — the title and every "Guitar · Yara Selim".
Home
Who's it for?
This one wrapped to two lines in Futura. Fixed — see the note below.
Which branch?
Bookings
1 · The wrapping is gone. You were right that it looked cheap. I measured all 59 headlines in the app against the real screen width — four of them overflowed. Fixed by shortening the writing, not by shrinking the type: "Who's the session for?" → "Who's it for?", "Review your booking" → "Your booking", plus two on the staff side. All 59 now sit on one line, and the headlines stay big.
2 · The "before" shots are a few hours older, so they're also missing the back button and the reordered instrument list from last night's fixes. The font is what changed on these screens; those two are extras you're seeing for the first time.
Your App Store screenshots still show Anton and need redoing before you submit — say the word.