Comparison

FermentBuddy vs FermentLog

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FermentBuddy

This kitchen companion helps you track and manage all your fermentation projects, from sourdough starters to kombucha. It provides smart timers, guided workflows, and troubleshooting assistance to ensure successful ferments. Document your progress with notes and photos, and access your data offline.

Highlights
  • Track multiple ferment types
  • Smart recurring reminders
  • Guided step-by-step workflows
  • Troubleshooting diagnostic system
  • Log ingredients, notes, and photos
  • Home screen widgets
  • Offline functionality
Features
Read full description

Fermentation is all about timing — and your sourdough starter won't remind you when it's hungry. FermentBuddy is the kitchen companion that remembers what you forget, so you never kill another starter or over-ferment your kombucha again. TRACK ALL YOUR FERMENTS IN ONE PLACE Whether you're nurturing a sourdough starter, brewing kombucha, culturing kefir, or making sauerkraut, FermentBuddy keeps every project organized with timers, notes, and photo logs. Support for 13 fermentation types including kimchi, miso, tempeh, yogurt, jun, vinegar, water kefir, and pickles. SMART TIMERS THAT ACTUALLY HELP Set recurring feeding reminders for your sourdough starter. Get notified when your kombucha first ferment is ready. FermentBuddy sends push notifications so you can stop setting random phone alarms and sticky notes. Pro users get temperature-adjusted timers that use fermentation science to adapt timing to your kitchen conditions. GUIDED WORKFLOWS FOR EVERY STAGE New to fermentation? Follow step-by-step timelines that walk you through each stage — from mixing your first sourdough starter to bottling your kombucha. Visual progress tracking shows exactly where you are and what comes next. TROUBLESHOOTING THAT ACTUALLY WORKS Mold on your sauerkraut? Starter not rising? Kombucha too vinegary? FermentBuddy's diagnostic system helps you identify problems with 34+ symptoms, causes, severity levels, and actionable solutions. No more frantic googling — get answers in seconds. DOCUMENT YOUR PROGRESS Log each batch with ingredients, dates, notes, and photos. Track what works and what doesn't. Build your personal fermentation recipe book over time. Export your history as CSV or PDF to share or save. HOME SCREEN WIDGETS Check on your active ferments without opening the app. Small, medium, and large iOS widgets show your running timers and next actions at a glance. BEAUTIFUL, WARM DESIGN FermentBuddy's "Artisan Pantry" design feels like a cozy kitchen companion, not a clinical spreadsheet. Warm terracotta and olive tones, organic typography, and signature rising bubble animations bring your ferments to life. Full dark mode support with warm undertones for late-night feeding sessions. WORKS OFFLINE Start tracking immediately — no account required. FermentBuddy works offline with automatic cloud sync when you're connected. Your data is always safe and accessible across devices. FREE TO START, PRO TO MASTER Get started free with 2 active projects, 3 ferment types, smart timers, and basic troubleshooting. Upgrade to Pro for unlimited projects, all 13 ferment types, temperature-adjusted timers, feeding calculator, discard recipe library, home screen widgets, batch export, and more. SUBSCRIPTION & PRICING FermentBuddy Pro is available as: • Annual auto-renewing subscription: $34.99/year (just $2.90/month) • Monthly auto-renewing subscription: $3.99/month • Lifetime one-time purchase: $14.99 Subscriptions auto-renew at the end of each period unless canceled at least 24 hours before the current period ends. Manage or cancel anytime in your iTunes Account Settings. Payment is charged to your Apple ID account at confirmation of purchase. Whether you're starting your first sourdough starter or managing a kitchen full of ferments, FermentBuddy helps you ferment with confidence. Terms of Use (EULA): https://fermentbuddy.app/terms Privacy Policy: https://fermentbuddy.app/privacy

About

FermentLog

Features
Read full description

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/

Screenshots

FermentBuddy4 screens
FermentLog4 screens

Verdict

The call

The clearest difference is update cadence: FermentBuddy at weekly against FermentLog's every 3 weeks. FermentBuddy also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FermentBuddy sells 3 in-app purchases, starting at $3.99 per month and FermentLog sells 5 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FermentBuddy ships an update weekly, FermentLog every 3 weeks. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
FermentBuddy versus FermentLog: the parameters behind the verdict, then further details
ParameterFermentBuddyFermentLog
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeekly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size103 MB3 MB
Age rating4+12+
DeveloperLight Works Studio, LLCPETRO VAKULENKO

In-app purchases

3 purchases

FermentBuddy

Subscriptions2
  • FermentBuddy Pro (Monthly)$3.991 Month
  • FermentBuddy Pro (Annual)$34.991 Year
One-time1
  • FermentBuddy Pro (Lifetime)$39.99
5 purchases

FermentLog

Subscriptions1
  • FermentLog Pro Yearly7 Days trial$9.991 Year
One-time4
  • Small Support Tip$2.99
  • Medium Support Tip$4.99
  • Large Support Tip$9.99
Show 1 more
  • FermentLog Pro Lifetime$16.99

Questions

Is FermentBuddy free?
FermentBuddy is free to download, with in-app purchases available.
Is FermentLog free?
FermentLog is free to download, with in-app purchases available.
Do FermentBuddy or FermentLog have ads?
Neither FermentBuddy nor FermentLog shows ads.
Which is updated more often, FermentBuddy or FermentLog?
FermentBuddy ships an update weekly, and FermentLog every 3 weeks. Most recently, FermentBuddy was updated on October 31, 2026 and FermentLog on October 31, 2026.

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