FermentLog: Fermentation Log
Cultures, batches & readings
Free · In‑App Purchases
Never miss a feeding or lose the details behind a successful ferment. Track cultures, batches, reminders, photos, pH, temperature, and outcomes—fully offline.
Never miss a feeding. Never lose the details behind a batch that worked.
FermentLog is a private, offline fermentation journal that turns daily notes into repeatable results—without an account, ads, or tracking.
CARE FOR YOUR CULTURES
• Save reusable sourdough, kombucha, kefir, and other cultures
• Get private local reminders for feedings and care
• Tap a reminder to open the right culture or batch
• Keep photos and notes together instead of scattered across apps
RUN BETTER BATCHES
• Follow checks, target dates, status, and recipe steps
• Record temperature, pH, gravity, sensory notes, and photos
• Use brine, hydration, and estimated ABV calculators
• Start from eight offline plans with visible sources, favorites, and quick repeat
• Save one custom template free; Pro removes the template limit
LEARN FROM YOUR HISTORY
Rate completed batches, record whether you would repeat them, compare outcomes, and spot patterns in Insights. Export a spreadsheet-friendly CSV or create a restorable JSON backup whenever you want.
Sourdough, kombucha, and milk kefir are free with unlimited entries. FermentLog Pro unlocks all 14 fermentation types, unlimited custom templates, batch comparison, and advanced outcome insights. Choose annual access with an eligible 7-day trial or a one-time lifetime purchase.
PRIVATE AND OFFLINE
No account, ads, analytics SDKs, or developer data collection. Your journal stays on your device.
FermentLog is a journal, not a laboratory safety test. Always follow current research-based recipes and discard anything you believe may be unsafe.
Privacy Policy: https://flonsus.com/apps/ferment-log/privacy/
Terms of Use: https://flonsus.com/apps/ferment-log/terms/
Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Reminders now open the right culture or batch. Track in °C or °F, rate completed batches, compare outcomes, and save custom setups as reusable templates. Guided onboarding, localization, accessibility, and backup reliability are improved.
The developer, PETRO VAKULENKO, 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
- PETRO VAKULENKO
- Size
- 3 MB
- Category
- Food & Drink
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, French, Polish, Spanish, Ukrainian
- Age Rating
13+
- 13+
- Infrequent
Alcohol, Tobacco, Drug Use or References
- In-App Purchases
Yes
- Large Support Tip $9.99
- Small Support Tip $2.99
- Medium Support Tip $4.99
- FermentLog Pro Lifetime $16.99
- FermentLog Pro Yearly $9.99
- Copyright
- © 2026 Petro Vakulenko