Comparison

Kombu Time vs FermentLog

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

Head to head
About

Kombu Time

This app simplifies the kombucha brewing process by offering straightforward tracking of fermentations, timely notifications, and an overview of all your brews. It allows optional logging of flavors and tea types, with a brew history and exportable data.

Highlights
  • Brew management for first and second fermentation
  • Home screen widgets for brew status
  • Timely bottling and readiness notifications
  • At-a-glance brew overview
  • Brew history and statistics
  • Optional flavor and tea type tracking
  • Exportable brewing data
Features
Read full description

Brew your kombucha with confidence and ease using Kombu Time, the app designed to keep your brewing process simple and stress-free. Perfect for kombucha enthusiasts who value simplicity, Kombu Time helps you track your fermentations without the clutter of unnecessary features. Features: - Straightforward Brew Management: Easily manage your kombucha brews with clear tracking of both first and second fermentations. Add optional flavor notes for second fermentation and tea types for first fermentation to keep track of your experiments. - Home Screen Widgets: See your active brews at a glance without opening the app. Available in multiple sizes, widgets show fermentation progress, days remaining, and which brews need attention—right from your home screen. - Timely Notifications: Receive notifications exactly when you need them—when it's time to bottle after the first fermentation, and when your kombucha is ready to enjoy after the second. Quick actions let you complete a brew or extend fermentation by 1 day right from the notification—no need to open the app. - At-a-Glance Brew Overview: See the status of all your brews in one clean, uncluttered view. Clear visual indicators show when brews are ready, in progress, or overdue. Know exactly when to start a new brew or when to bottle, without any distractions. - Brew History: Track your kombucha journey with automatic history logging. View statistics including total brews completed, average fermentation times, and most-used flavors. Export your brewing data as CSV or JSON for your own analysis. - Flavor & Tea Type Tracking: Keep track of which flavors you use for second fermentation and which tea varieties for first fermentation. Choose from pre-populated favorites or add your own. Completely optional—skip it if you prefer to keep things simpler. Why Kombu Time? Kombu Time was born out of the need for a no-fuss, straightforward kombucha brewing app. If you're tired of apps overloaded with features you don't need, Kombu Time is the perfect solution. It does exactly what you need—nothing more, nothing less. All features are designed to enhance your brewing without adding complexity. History tracking, flavor notes, and tea types are completely optional. Use what helps you, ignore what doesn't. Start Brewing with Ease! Download Kombu Time today and simplify your kombucha brewing process. Focus on the joy of brewing, not on managing complicated tools.

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

Kombu Time3 screens
FermentLog4 screens

Verdict

The call

The clearest difference is in-app purchases: Kombu Time at none against FermentLog's 5. Kombu Time also leads on iOS requirement (15.3 vs 17.0). FermentLog's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads 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. FermentLog sells 5 in-app purchases, starting at $9.99 per year. Kombu Time asks for nothing beyond the download.

UpkeepUpdate frequency

Kombu Time ships an update every 3 months, FermentLog every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Kombu Time versus FermentLog: the parameters behind the verdict, then further details
ParameterKombu TimeFermentLog
PriceFreeFree
Rating4.3 (4 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.3 — better17.0
Further details — not scored
Size37 MB3 MB
Age rating4+12+
DeveloperLammert WesterhoffPETRO VAKULENKO

In-app purchases

None

Kombu Time

No in-app purchases

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 Kombu Time free?
Kombu Time is free to download, with no in-app purchases.
Is FermentLog free?
FermentLog is free to download, with in-app purchases available.
Do Kombu Time or FermentLog have ads?
Neither Kombu Time nor FermentLog shows ads.
Which is updated more often, Kombu Time or FermentLog?
Kombu Time ships an update every 3 months, and FermentLog every 3 weeks. Most recently, Kombu Time was updated on October 30, 2026 and FermentLog on October 31, 2026.

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