Comparison

Fermento vs Kombucha Keeper

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

Head to head
About

Fermento

Track and manage all your fermentation projects, from sourdough and cheese to kombucha and pickles. Features smart timelines, custom reminders, and helpful calculators for precise results. Includes advanced logging and export options for professional use.

Highlights
  • Unlimited fermentation batches
  • Customizable timelines and milestones
  • Smart reminders for tasks
  • pH, salt %, and weight tracking
  • Culture management
  • HACCP decision-tree builder
  • Recipe scaling calculators
Features
Read full description

Fermento keeps pickles, sourdough, cheeses, kombucha, charcuterie and more on schedule with smart timelines, reminders, calculators and exportable logs—for beginners and pros. Projects & timelines - Unlimited batches with custom milestones and photo notes - pH, salt %, weight and observations—timestamped in one place - Smart reminders for feeds, flips, checks and cures Culture management - Starters, SCOBY hotels and kefir grains—health, feeds and lineage together HACCP (for pros) - Decision-tree builder for hazards and CCPs - Monitoring/verification logs with corrective actions - Export tidy PDFs for audits and compliance Calculators & scaling - Hydration, salt %, inoculation ratios and timing helpers - Instant scaling and saved methods Insights - Compare batches, spot trends and review pH/tempo curves - Equipment notes and calibration history (keep sensors honest) Why Fermento? Made by fermentation obsessives. Private, focused and practical—whether it's your first kimchi or a full curing chamber. Terms of Use: https://drobinin.com/apps/terms/fermento/

About

Kombucha Keeper

Read full description

Kombucha Keeper helps you keep track of your Kombucha batches and notifies you when it might be ready.

Screenshots

Fermento4 screens
Kombucha Keeper3 screens

Verdict

The call

The clearest difference is in-app purchases: Kombucha Keeper at none against Fermento's 4. Kombucha Keeper also leads on iOS requirement (15.1 vs 17.0). Fermento's advantage is update cadence (monthly vs every 2 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. Fermento sells 4 in-app purchases, starting at $3.99 per 7 days. Kombucha Keeper asks for nothing beyond the download.

UpkeepUpdate frequency

Fermento ships an update monthly, Kombucha Keeper every 2 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 5 level
Fermento versus Kombucha Keeper: the parameters behind the verdict, then further details
ParameterFermentoKombucha Keeper
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size111 MB23 MB
Age rating12+4+
DeveloperDrobinin LimitedWesley Dudok van Heel

In-app purchases

4 purchases

Fermento

Subscriptions4
  • Fermentation Tracker Unlimited$3.997 Days
  • Culture & Probiotic Pro$7.991 Month
  • Fermentation Tracker Unlimited3 Days trial$59.991 Year
Show 1 more
  • HACCP Safety Compliance Pro$179.991 Year
None

Kombucha Keeper

No in-app purchases

Questions

Is Fermento free?
Fermento is free to download, with in-app purchases available.
Is Kombucha Keeper free?
Kombucha Keeper is free to download, with no in-app purchases.
Do Fermento or Kombucha Keeper have ads?
Neither Fermento nor Kombucha Keeper shows ads.
Which is updated more often, Fermento or Kombucha Keeper?
Fermento ships an update monthly, and Kombucha Keeper every 2 months. Most recently, Fermento was updated on October 30, 2026 and Kombucha Keeper on October 28, 2026.

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