Barm: Sourdough Starter Log
Feed timer & rise chart
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Barm is a fast, fully offline log for your sourdough starter — built for bakers who want data, not a diary. Track every feeding with one tap, watch your rise trend as a live chart, and time the float test right from your pocket, all without opening a spreadsheet or writing a paragraph.
Most sourdough trackers turn feeding your starter into a journaling chore — photos, mood notes, endless taps. Barm skips the fuss: pick a hydration ratio, log the grams, done. A built-in ratio calculator works out flour and water for you, and the float test timer tells you exactly how long your starter took to peak.
Everything lives on your device. No account, no cloud sync, no ads — your starter's feeding history and rise data never leave your phone.
Included forever for a single starter: unlimited feed logging, the rise chart, and the float test timer. Upgrade to Pro for unlimited starters, CSV export, custom feeding reminders, and rise-time stats — a one-time purchase, no subscription.
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The developer, 永 张, 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
- 永 张
- Size
- 619.5 KB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Barm Pro $4.99
- Copyright
- Copyright © 2026 Peter Zhang. All rights reserved.