SourTime
Sourdough, timed right
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Fresh out of the oven: SourTime works out your loaf, walks you through every phase and speaks up at the right moment — on your iPhone and on your wrist.
Sourdough forgives almost everything. Except bad timing.
SourTime takes over the part that goes wrong when you try to keep it in your head: the quantities and the clock. Tell the app how big your loaf should be — it works out flour, water, starter and salt to the gram, then walks you through every phase, from autolyse to out of the oven.
THE CALCULATOR
Dial in the loaf weight and every ingredient follows. Hydration and ratios stay adjustable, and your own blends of wheat, rye, spelt and wholemeal take seconds to set up.
THE TIMER
Five phases, each with the step that belongs to it: autolyse, bulk ferment, shaping, final proof, bake. The remaining time sits on your Lock Screen and in the Dynamic Island — pause and resume without opening the app.
ON APPLE WATCH
Time remaining right on the watch face. Start, pause and resume the timer without taking your iPhone out of your pocket.
YOUR STARTER
A starter of your own in seven days, guided day by day. After that SourTime keeps track of the feeding rhythm and brings a timer of its own.
QUIET HOURS
Long overnight proofs come with the territory. Tell SourTime when you sleep and it shifts its reminders instead of waking you at three.
YOUR LOAVES
Every bake goes into your history with its recipe, notes, rating and a photo. So you can find your way back to what worked last time.
NO ACCOUNT, NO ADS
SourTime has no sign-in and no server. Everything stays on your device. No advertising, no tracking, no third-party analytics.
SOURTIME PRO
The free version isn't a demo: the calculator, the full phase timer, the starter assistant and your history are in it and stay in it. Pro lifts the limits and unlocks Plan mode, which works backwards from the time you want bread on the table.
Buy once. No subscription.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Rupert Andreas Maier, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Rupert Andreas Maier
- Size
- 8.6 MB
- Category
- Food & Drink
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Watch
Requires watchOS 11.0 or later.
- iPhone
- Languages
English and 20 more
- English, Bengali, Czech, Danish, Dutch, Finnish, French, German, Hindi, Indonesian, Italian, Norwegian Bokmål, Polish, Portuguese, Russian, Spanish, Swedish, Thai, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- SourTime Pro $8.99
- Copyright
- © 2026 Rupert Maier · axeptdesign
