Kombucha fermentCal
Kefir, tibicos & fermenting
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Free
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About
Kombucha fermentCal is a practical app for home fermentation and growing. It helps you with kombucha, Tibi (water kefir), rejuvelac and sprouting — all in one place.
In the app you will find:
ingredient calculations for kombucha F1 and F2
guides for beginners and advanced users
overview of saved and active batches
practical tips and fermentation alerts
recommended products for kombucha, sprouting and matcha
helpful information on temperature, alcohol and common situations in home fermentation
Available in Czech, Slovak and English.
Perfect for anyone who wants better control over their fermentation and key information always at hand.
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What's New in Kombucha fermentCal
2.1
September 1, 2026
We fixed reminders. They used to arrive at the same hour you started the batch — start one at two in the morning and the app woke you at two in the morning. We now stay quiet between 22:00 and 8:00. Practical tips and the alcohol estimate are now reachable on your phone, under More → Advice and tools. Until now they were only available on Mac. Saving a batch from a calculator no longer breaks the tab bar. A back-dated batch no longer loses its reminders silently. Small improvements and fixes.
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