Baking is timing. SourTime handles that part.
Sourdough forgives almost everything except bad timing. SourTime does the maths, plans the phases and tells you when you're up.
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Dial in the loaf
Set the weight you want, every ingredient follows. Your own flour mixes included.
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A timer across five phases
Autolyse, bulk ferment, shaping, final proof, bake — each phase with the step that belongs to it.
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Starter assistant
A starter of your own in seven days, then a feeding rhythm and a timer to match.
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Live Activity & Dynamic Island
The remaining time sits on your Lock Screen. Pause and resume without opening the app.
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Apple Watch complication
Time remaining right on the watch face, controls on your wrist.
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Quiet hours
Long overnight proofs — SourTime stays quiet while you sleep.
SourTime Pro
The free version isn't a demo: the calculator, the full phase timer, the starter assistant and your baking history are in it and stay in it. Pro lifts the limits — buy once, done.
No subscription. No monthly charge, no ads, no account. You pay once and keep it, on your other devices with the same Apple Account too.
€9.99 one time
- Plan mode: work backwards from the time you want bread
- Unlimited custom flour mixes
- Several starters side by side
- Full history with photos
- Live Activity: time left on your Lock Screen
Your data stays where it belongs.
SourTime has no user account and no server. Recipes, bakes and photos live on your device. There are no ads, no analytics SDKs and no tracking — the app simply doesn't send your baking data anywhere.
Read the privacy policy