Sourdough Calculator & Journal
Bread hydration & starter log
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Bread calculator and sourdough calculator in one app. Baker's percentage calculator, dough hydration calculator, sourdough starter tracker, bake timeline planner, recipe scaler, and a photo journal of every loaf — all offline, all in BreadMath.
BAKER'S PERCENTAGE CALCULATOR
Enter any flour, water, salt, and starter or yeast amounts. BreadMath shows live baker's percentages for every ingredient. Add multiple flour types — bread flour, whole wheat, rye, spelt, 00 flour — in a single recipe. Salt percentage and hydration update instantly. Save any calculation as a recipe in one tap.
DOUGH HYDRATION CALCULATOR
The fastest way to find your bread's hydration. Enter flour, water, and starter (with starter hydration) — BreadMath does the maths. Target hydration ranges shown for every common bread style: sandwich loaf, country boule, ciabatta, focaccia, baguette, bagels. Includes water from your starter so the number is correct.
SOURDOUGH STARTER MANAGER
Track your starter's health status and feeding ratio. Tap the build calculator to find exactly how much starter to feed for any recipe. One-tap "I just fed it" log with ratio (1:1:1, 1:2:2, 1:3:3, 1:5:5) and the next-feeding time. Full feeding history at a glance.
FEEDING SCHEDULE & REMINDERS
Never forget your starter again. Reliable notifications for every feeding interval — every 4, 6, 8, 12, or 24 hours. Pause when the starter goes in the fridge, resume when it comes back out. The dashboard shows the next feeding countdown so you can plan around it.
BAKE TIMELINE PLANNER
Plan a sourdough bake forwards from now or backwards from a target finish time. Start from autolyse, mix, bulk ferment, pre-shape, final shape, cold proof and bake, then make the plan your own: rename steps, change their times, add your own, delete them or drag to reorder. Every step has its own timer, and one tap starts the next step. Your plan and a running timer stay saved when you leave the screen, and BreadMath alerts you when a step's time is up, even with your phone locked. Perfect for fitting a 24-hour cold proof around your day.
RECIPE SCALER
Halve, double, or scale any recipe to a target dough weight or number of loaves. Maintains every baker's percentage exactly.
16 BUILT-IN RECIPES WITH REAL PHOTOS
Basic Sourdough, Whole Wheat Sourdough, Country Rye, Sourdough Baguette, Ciabatta, Focaccia, Multigrain, Soft Sandwich Bread, Honey Whole Wheat, Brioche, Sesame Bagels, Soft Pretzels, Neapolitan Pizza, Naan, Flour Tortillas, Cinnamon Rolls. Every recipe has a full ingredient table with baker's percentages, scaled to 500 g flour, plus step-by-step instructions with times and temperatures.
PHOTO BAKE JOURNAL
Log every loaf with photos, stars, notes, recipe link, and tags. Use the presets or add custom tags. Edit any bake later — you're not locked in. Sort by newest, oldest, or top-rated. Forgot a photo? The journal uses the linked recipe's image so the entry still looks great.
WORKS OFFLINE — NO ACCOUNT
Every calculation, recipe, and photo lives on your device. No sign-up, no cloud, no account. The whole app loads instantly.
BREADMATH PRO — ONE-TIME UNLOCK
BreadMath Pro unlocks the full bread journal with unlimited entries and photos, the bake timeline planner, feeding schedule notifications, the full 16-recipe library, recipe scaling, and removes ads. The standard version includes the baker's percentage calculator, hydration calculator, starter tracker, and 3 starter recipes — enough to get the math right on your next loaf.
The bread baking app made by bakers, for bakers.
Privacy: clearstackapps.com/privacy
Contact: support@clearstackapps.com
Ratings & Reviews
The bake timeline is now yours to shape: rename steps, change their times, add your own, delete them or drag to reorder. Your plan and a running timer stay saved when you leave the screen or close the app. BreadMath also alerts you when a step's time is up, even with your phone locked.
The developer, ClearStack Apps, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ISolution Technologies Limited
- Size
- 11.1 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.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- BreadMath Pro $4.99
- Copyright
- © 2026 ClearStack Apps
