SourdoughKeeper
Never kill another starter.
$1.99 · Designed for iPhone. Not verified for macOS.
$1.99 once. No subscription. Track feedings, calculate hydration, and check your countdown on Apple Watch — all on-device.
You opened the fridge and your starter was gray. The hooch layer thick. The smell wrong. You knew before you even touched it.
That's the moment SourdoughKeeper is built for.
Log a feeding in two taps. The app calculates your next feed time automatically — 24 hours for room temperature, 7 days for fridge — and flips the countdown the instant you toggle storage. No spreadsheet. No sticky note. No guessing.
What's inside:
- Feed log — one tap records the feeding. Timestamps stay local, no account needed.
- Countdown timer — auto-adjusts when you move your starter between room temp and fridge. Daily reminder lands on your Lock Screen at the time you choose.
- Hydration calculator — enter flour weight and target hydration percentage, get the exact water amount. Save presets for your favourite ratios.
- Apple Watch app — the same countdown on your wrist with a "Just fed it" button that syncs back to iPhone instantly via WCSession.
- Feeding reminders — daily local notification at your chosen time. No push server. No APNs. No background pinging.
Who this is for:
Weekend bakers who have killed at least one starter from neglect. People who bake every Saturday and lose track by Wednesday. Sourdough beginners who want one place to track everything without learning a new system. Experienced bakers who want hydration math done for them.
Privacy by design:
No account. No sign-in. No cloud. No analytics SDK. No ads. Everything lives on your phone and your Watch. Uninstall and it's gone.
Paid once. Owned forever.
$1.99. No subscription. No premium tier. No upsells inside the app. You buy it once and it works — forever.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Christian Pedersen, 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
- Christian Pedersen
- Size
- 3.7 MB
- Category
- Food & Drink
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Christian Pedersen
