Sauerdo
Your fermentation journal.
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Track every step. Score every bake. Spot your patterns. The fermentation journal built for sourdough, pizza, focaccia, brioche — and bakers who want to improve.
Sauerdo is the fermentation journal for bakers who want to improve.
Whether you're chasing your first open crumb, dialing in a 72-hour cold-fermented sourdough, perfecting Neapolitan pizza dough, or experimenting with focaccia and brioche — Sauerdo turns every bake into a real entry in a real journal. Not a notes app. Not a spreadsheet. A tool built for flour-on-hands hands.
— Track the bake as it happens —
Tap an action: Mix dough, Stretch & fold, Cold ferment started, Launch & bake. Sauerdo timestamps it for you. Snap a photo without leaving the session. Add a note when something happens you'll want to remember. The whole bake gets logged hands-free, then becomes a clean timeline you can scroll back through tomorrow, next week, or next year.
— Score every bake against the same rubric —
Crust, crumb, scoring, oven spring, salt balance — every bake earns a number from 0 to 11. After ten or twenty bakes, you stop guessing and start seeing. Which flour gave you the most open crumb? Which ambient temperature lined up with your best ears? The patterns are sitting in your history; Sauerdo just makes them visible.
— Tools bakers actually need —
• Bulk fermentation predictor: dough temp + ambient + flour character + target rise → a real time range, not a generic "4–6 hours."
• Reverse schedule planner: pick when bread comes out of the oven, work backwards through every stage.
• Hydration calculator: dial in your water exactly, every time.
• Baker's percentages: type weights, see ratios; type ratios, see weights.
• Yeast converter: IDY ↔ ADY ↔ fresh yeast, with activation guidance baked in.
• Stretch & fold timer: set the interval and the rounds, get a wrist nudge for each one.
• Starter feeding scheduler: feed on time, every time, with predictable peak windows.
— Built for every kind of bake —
Sauerdo ships with workflows for sourdough, pizza, focaccia, brioche, ciabatta, baguette, and rye. Each bake type has its own scoring rubric and its own timeline. A Neapolitan pizza dough is not a country sourdough — Sauerdo treats them differently.
— Local-first. No account required. —
Sauerdo lives on your phone. Your bake photos, notes, scores, and recipes stay in your journal unless you choose to export or share them.
— Sauerdo Pro —
Free includes everything you need to track and score your bakes. Pro is for bakers ready to scale up:
• Unlimited saved recipes and unlimited journal history
• Multiple simultaneous live sessions — proof a sourdough while a pizza dough cold-ferments
• Up to 10 photo slots per bake — finished loaf, crumb shot, score pattern, and a full bake trail
• Branded share cards built for the feed
• PDF export of your full bake journal
Sauerdo Pro is sold as an auto-renewing subscription through your Apple ID. Cancel anytime in Settings.
— Made in Copenhagen, by a baker, for bakers —
Got a workflow we should add, a bake type we missed, or a question? Email kc@mondaybrew.dk. We read everything.
Terms of Use (EULA): https://sauerdo.vercel.app/terms
Privacy Policy: https://sauerdo.vercel.app/privacy
Ratings & Reviews
Fixes timeline editing so saved step times land on the selected minute, updates Share a Bake bulk fermentation timing, and adds separate pre-shape and final shape steps for sourdough bakes.
The developer, mondaybrew, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 5.8 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+
- In-App Purchases
Yes
- Sauerdo Pro Yearly 699,00 kr
- Sauerdo Pro Monthly 89,00 kr
- Provider
mondaybrew ApS
- mondaybrew ApS has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
- DUNS Number
306672383 - Address
Vesterbrogade 74, sal 4
1620 København V
Denmark - Phone Number
+45 42211065 - Email
kc@mondaybrew.dk
- Copyright
- © 2026 mondaybrew ApS. All rights reserved.
