Comparison

Fermento vs KombuVault

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

KombuVault

Easily track your home-brewed kombucha batches from start to finish. Log key metrics, diagnose issues with guided fixes, and build a library of your favorite flavor recipes. Designed for both new and experienced brewers.

Highlights
  • F1 and F2 batch tracking
  • Daily brew journal
  • Brew diagnostics and fix guides
  • Flavor recipe library
  • Secure cloud sync
Read full description

KombuVault is the smartest way to track your home-brewed kombucha from the first day of fermentation to the last satisfying sip. Track every batch through F1 and F2 with daily check-in reminders, so you never lose track of where your brew is in its cycle. Log pH, temperature, carbonation, and taste at every stage. Watch your batch evolve over time and catch problems early before they ruin a brew. Diagnose common issues instantly. Get step-by-step fix guides for too-sweet, too-sour, flat, or strange-smelling brews. Mold? KombuVault tells you clearly when to discard and start fresh. Build your flavor recipe library. Save, rate, and reuse your best flavor combinations. Ginger lemon, berry hibiscus, mango chili - track what works and repeat it. Designed for beginners who need guidance and experienced brewers who want data. KombuVault grows with your skill level. Features: - F1 and F2 batch tracking with progress timelines - Daily brew journal with pH, temp, taste, and carbonation logging - Brew diagnostics with fix guides for 5 common issues - Flavor recipe library with ratings and ingredient tracking - Secure cloud sync via Sign in with Apple Privacy Policy: https://www.kombuvault.com/legal Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fermento4 screens
KombuVault4 screens

Verdict

The call

The clearest difference is ads: Fermento at none against KombuVault's shown. Fermento also leads on review sentiment (100% vs 83%). KombuVault's advantage is update cadence (every 2 days vs monthly). On price, in-app purchases, monetization model 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 and KombuVault sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fermento ships an update monthly, KombuVault every 2 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Fermento versus KombuVault: the parameters behind the verdict, then further details
ParameterFermentoKombuVault
PriceFreeFree
Rating—4.7 (14 ratings) — better
Positive reviews100.0% of reviews — better83.3% of reviews
Number of ratings—14 — better
Update frequencyMonthlyEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better17.6
Further details — not scored
Size111 MB72 MB
Age rating12+4+
DeveloperDrobinin LimitedPetaforge Inc.

Customer experience

Fermento

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KombuVault

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

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
3 purchases

KombuVault

Subscriptions3
  • Weekly Premium$3.997 Days
  • Monthly Premium$7.991 Month
  • Annual Premium7 Days trial$49.991 Year

Questions

Is Fermento free?
Fermento is free to download, with in-app purchases available.
Is KombuVault free?
KombuVault is free to download, with in-app purchases available.
Do Fermento or KombuVault have ads?
KombuVault shows ads; Fermento does not.
Which is updated more often, Fermento or KombuVault?
Fermento ships an update monthly, and KombuVault every 2 days. Most recently, Fermento was updated on October 30, 2026 and KombuVault on October 24, 2026.

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