KombuchaFermentCalc

Content rating
Everyone
100+
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Content rating
Everyone
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About this app

KombuchaFermentCalc is your guide to the world of fermentation. Whether you're a beginner or an experienced fermenter, this app helps you with kombucha, water kefir (tibicos), rejuvelac and sprouts preparation.

Features:
- Kombucha ratio calculator (tea, sugar, SCOBY, starter)
- Water kefir / tibicos calculator
- Rejuvelac calculator
- Sprouting and microgreens guide
- Interactive beginner's guide
- SCOBY health check
- Three languages: Czech, Slovak, English

The app works completely offline and does not collect any personal data.

Made with love in the Czech Republic.
www.vyhonky.cz
Calculator for kombucha, tibi, rejuvelac & sprouts fermentation
Updated on
Sep 5, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

Calculators and step-by-step guides for home fermentation: kombucha, water kefir (tibicos), milk kefir, rejuvelac, sprouts, microgreens and matcha.

We work out the ratios for your jar, walk you through each step and keep the time — reminders tell you when to taste and when to bottle.

Batch tracking, saved recipes and a home screen widget.

Czech, Slovak and English. Free.
Content rating
Everyone
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App support

About the developer
Daniel Nešvera
info@vyhonky.cz
Czechia