There's a jar of something alive in a lot of kitchens right now. Kombucha working through its second ferment. Kimchi quietly acidifying in the back of the fridge. A sourdough starter being fed on a cycle its owner has memorised by feel. Fermentation is one of the oldest things humans do — and it's having an unmistakable moment.
Fermento was built for that moment. A calm, precise, no-nonsense tracker that treats your ferments the way you treat them: seriously. Since launching on the App Store, it's become a genuine daily companion for brewers who want repeatability, not guesswork. Today, it arrives on Android.
Fermento is now available on Google Play. Same app. Same precision. Same everything — just finally on the device in your pocket.
"The best batch you've ever made shouldn't be a mystery you can't repeat. That's the whole point."
Why It Took This Long (And Why It Matters Now)
Building software well for one platform is hard. Building it well for two is harder. We didn't want to ship a compromised Android experience — a port that looked like an afterthought, missing features or feeling out of place. So we waited until we could do it right.
The Android version of Fermento is exactly what iOS users have been using: a precision tool with a calm interface, built for the way fermentation actually works — in phases, over days, with variables that matter. Nothing has been cut. Nothing has been simplified out of laziness.
And it matters now because the fermentation community doesn't live on one OS. It lives in kitchens — European, Asian, Latin American, everywhere traditions of preservation run deep. Android has a majority share of the global smartphone market, which meant a majority of potential Fermento users simply couldn't use it. That changes today.
What You Get
The full toolkit, on Android, from day one:
- Multi-Phase Timers — Fermentation doesn't happen in a single step, and your timer shouldn't pretend otherwise. Define F1, F2, resting, aging — whatever your process requires. Timers run in the background and survive reboots. Your SCOBY doesn't care if you restart your phone.
- Smart Reminders — Miss the window on a F2 burp and you're cleaning kombucha off the ceiling. Forget to move kimchi to the fridge and it overshoots into sour. Fermento sends you the right notification at the right time, not a generic alarm you'll dismiss.
- pH Monitoring — Log readings chronologically, watch the acidity drop, confirm your lacto-fermentation is healthy and safe. Numbers you can actually correlate to taste.
- Brew Gallery — The pellicle thickened over five days. The brine went from cloudy to crystal. The krausen rose and fell. Fermento keeps your batch photos organized by brew — not dumped into your camera roll alongside everything else.
- Tasting Notes — Sweetness, carbonation, aroma, acidity — scored and logged so the batch that came out perfect isn't a one-time accident. It becomes a repeatable recipe.
- Privacy First — No account. No server. No subscription. No cloud you didn't ask for. Your cultures, your recipes, your notes — they live on your device and nowhere else.
The Fermentation Community Deserves Good Tools
Home fermentation is not a niche pursuit anymore. It's practised by people who care deeply about what they eat and drink — who take real satisfaction in making something alive and delicious from salt, water, time, and patience. They've historically been underserved by technology. Most apps in this space feel like spreadsheets with a logo slapped on.
Fermento was designed differently: as an app that respects the craft. One that's calm when you open it, clear when you need information, and out of the way the rest of the time. Bringing that to Android isn't just a platform expansion — it's a commitment that the community of people who ferment carefully, regardless of which phone they carry, deserves tools built with the same care they bring to their batches.
Get It Now
What Comes Next
This is a beginning, not a completion. A cross-platform Fermento means a larger, more diverse community — more feedback, more recipes, more brewers sharing what works. The plan was always to build the best fermentation tracker in existence. That plan hasn't changed. It just has more surface area now.
If you've had a jar of something sitting on your counter and you've been tracking it in your head, or in a notes app, or in a notebook you keep losing — it's time to try something built specifically for this. Download Fermento. Start a batch. Come back in a week and find out exactly what you did right.
Your Next Brew Is Waiting
Free to download. No account. No ads. Just your ferments, tracked properly.
Fermento is made by Andrej Jasso, an independent developer who ferments, thinks too hard about tools, and believes both pursuits are worth doing well. Questions, feedback, or an especially good tepache recipe — get in touch.