Comparison

FermentApp vs Kombu Time

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

Head to head
About

FermentApp

Learn the art of fermentation and pickling with step-by-step lessons and guided recipes. Explore a variety of techniques, from basic lactofermentation to making kimchi, with audio options for on-the-go learning. This app offers a comprehensive guide for beginners to create delicious homemade ferments.

Highlights
  • 10 illustrated theory lessons
  • Audio versions of lessons
  • 16 guided step-by-step recipes
  • Recipe alerts and notifications
  • Vegan options for recipes
  • Content in English and Spanish
Features
Read full description

Hands-on crash course for homemade Ferments & Pickles. FermentApp is the ultimate app to learn fermentation and pickling techniques from scratch and at your own pace: - 10 lessons with all the theory on veggie lactofermentation fundamentals, beautifully illustrated. You can also listen to the lessons while doing other stuff as they're also available in audio format. More than two hours of fun and rigorous content. - 16 guided recipes, step by step, with alerts and notifications that will guide you through the whole process. Recipes are in order of difficulty, so we'll start with easy recipes and we'll end up making our own kimchi, our graduation recipe. All the recipes are vegan or have a vegan option. And with more recipes coming soon! All the content is available in English and Spanish. Lesson index: 1. Course introduction 2. Why fermenting? 3. Fermentation technique 4. Pickling technique 5. Hygiene and cleanliness 6. Best practices 7. Problem solving 8. Recommended tools 9. Fermentation decalog 10. Bibliography and references Recipe index (more recipes will be published in the next months): 1. Quick pickles 2. Sauerkraut 3. Avocado pickles 4. Sourdough 5. Preserved lemons 6. Red sauerkraut 7. Vietnamese pickles 8. Sima 9. Ginger bug 10. Giardiniera (Chicago Style) 11. Fermented salsa 12. Tepache 13. Fermented mustard 14. Kvass 15. Ginger ale 16. Kimchi FUTURE PLANS This course, like our ferments, is alive! Here is the open roadmap for the app. If you have any suggestion, we want to hear from you: - Continuous lesson updates and additional content. - New seasonal and extra recipes included in the course. - Newsletter service for FermentApp users. - Optional expansion packs with new courses covering specific topics: koji, vinegars, milk, vegan cheeses, regional ferments and pickles, drinks... - Collaborations with chefs and experts to cover new content tracks. - User profile and community tools. - Recipe customisation to create your own variants. - Personal cookbooks: create and publish your own recipes.

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.

Screenshots

FermentApp4 screens
Kombu Time3 screens

Verdict

The call

The clearest difference is price: Kombu Time at Free against FermentApp's $4.99. FermentApp's advantage is rating (5.0 vs 3.5) and update cadence (every 8 days vs every 3 months). On ratings volume, 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

Kombu Time is free to download; FermentApp costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FermentApp holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of FermentApp's written reviews are positive against 75% of Kombu Time's.

UpkeepUpdate frequency

FermentApp ships an update every 8 days, Kombu Time every 3 months. Both last shipped on September 21, 2026.

Scorecard6 real differences · 4 level
FermentApp versus Kombu Time: the parameters behind the verdict, then further details
ParameterFermentAppKombu Time
Price$4.99Free — better
Rating5.0 (1 ratings) — better3.5 (2 ratings)
Positive reviews100.0% of reviews — better75.0% of reviews
Number of ratings12 — better
Update frequencyEvery 8 days — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.3
Further details — not scored
Size31 MB37 MB
Age rating12+4+
DeveloperLostium ProjectLammert Westerhoff

Customer experience

FermentApp

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Kombu Time

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

FermentApp

No in-app purchases

None

Kombu Time

No in-app purchases

Questions

Is FermentApp free?
FermentApp costs $4.99, with no in-app purchases.
Is Kombu Time free?
Kombu Time is free to download, with no in-app purchases.
Which has better reviews, FermentApp or Kombu Time?
FermentApp is rated higher. FermentApp averages 5.0 out of 5 from 1 ratings, while Kombu Time averages 3.5 from 2 ratings.
Do FermentApp or Kombu Time have ads?
Neither FermentApp nor Kombu Time shows ads.
Which is updated more often, FermentApp or Kombu Time?
FermentApp ships an update every 8 days, and Kombu Time every 3 months. Most recently, FermentApp was updated on September 21, 2026 and Kombu Time on September 21, 2026.

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