Calculate the amount of sourdough starter based on timing, ingredients, and temperature!

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Version
Update
Dec 29, 2025
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10+

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Boulangeur APP

๐Ÿž BAKER - Calculate your sourdough bread perfectly

Presentation video: https://www.youtube.com/shorts/n4GryiAb8IU

Want to bake sourdough bread but never know how much starter to use? Baker solves THIS problem: enter your available time and the temperature of your kitchen, and the app automatically calculates the exact amount of starter!

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
๐ŸŽฏ THE PROBLEM BAKER SOLVES
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

Making sourdough bread is all about TIME and TEMPERATURE. Too much starter? The dough over-ferments. Not enough? It doesn't rise properly.

Boulangeur calculates the EXACT amount of sourdough starter for you based on:
โ€ข The desired duration of your process
โ€ข The temperature of your room
โ€ข Refrigeration (optional) and its duration

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
โœจ 3 CALCULATION MODES
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

โ€ข DURATION MODE (most used)
"I "I want my bread ready in 15 hours"

โ†’ The app calculates the appropriate amount of sourdough starter

โฐ END TIME MODE
"I want to bake tomorrow at 12 PM"
โ†’ Set the start time and the app calculates the sourdough starter

๐Ÿฅ„ SOURDOUGH STARTER AMOUNT MODE
"I have 80g of sourdough starter to use"
โ†’ The app calculates how long the process will take

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
๐Ÿ“Š CALCULATOR SMART
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

โ€ข Enter the desired flour weight
โ€ข Add the protein content of your flour
โ€ข Set the target hydration (automatic suggestion)
โ€ข The app calculates: water, salt, sourdough starter to the gram
โ€ข Automatic compensation for the water content of the sourdough starter

๐ŸŒก๏ธ TEMPERATURE ADAPTED
โ€ข 18ยฐC โ€‹โ€‹in your kitchen? More sourdough starter needed
โ€ข 25ยฐC? Less sourdough starter is sufficient
โ€ข Refrigerating? The app automatically compensates

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
๏ธ MANAGE YOUR FLOURS
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

โ€ข Create your personalized flour library
โ€ข Record the protein content of each flour
โ€ข Set the recommended hydration for each flour
โ€ข Mix multiple flours in one Recipe

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
โฑ๏ธ SMART TIMERS
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

โ€ข Automatic planning of all steps
โ€ข Timers with audible and voice alerts
โ€ข Works even with the screen off
โ€ข Voice announcement of each step
โ€ข Check off steps as you go measure

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
๐ŸŽฏ WHY BAKER?

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

โœ… ONE-TIME PURCHASE - No ads, no subscription
โœ… WORKS OFFLINE - No internet required
โœ… RESPECTS YOUR PRIVACY - No data collected
โœ… INTUITIVE INTERFACE - Simple yet powerful
โœ… CUSTOMIZABLE THEMES - Light, dark, or your color

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
๐Ÿ“– IDEAL FOR
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

โ€ข Beginners who want to understand sourdough
โ€ข Amateurs who want consistent results
โ€ข Experienced bakers who want to optimize their Timing

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
๐Ÿ’ฌ A DEVELOPER WHO LISTENS
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

Behind Boulangeur, there's a passionate individual who has spent hundreds of hours perfecting every detail to offer you the best possible experience.

The app's price allows me to fund the project and its future development. In return, I promise to:

โ€ข โ“ A detailed help page to answer all your questions
โ€ข ๐Ÿ“ง Reply to ALL your messages (email button in the top right corner)
โ€ข ๐Ÿ› Quickly fix reported bugs
โ€ข โœจ Listen to your suggestions for improvement
โ€ข ๐Ÿš€ Develop the app according to your needs

You're not just buying an app, you're supporting a living project!

โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”

No more guessing! Download Boulangeur and make perfect sourdough bread, every time. ๐Ÿฅ–
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