Made by TotalPunch Development
Every ferment has a lineage. One batch becomes the starter for the next — split it, follow it from F1 through F2, and watch your ferments branch into a real family tree.
Begin a new batch and track it through its first fermentation stage.
When F1 is ready, carry part forward — 20% by default, yours to change — as the starter for a brand-new F1.
The rest moves into F2 for its second stage, right through to the fridge. Split again at any point to branch further.
Rate the finished batch and let Apple Intelligence surface what's producing your best results — entirely on-device.
Connect a HomeKit temperature sensor and FermenTree learns from your history to estimate how long each stage will take.
Tap a tag on a jar to jump straight to that batch's place in its tree — no searching required.
Open the app and start logging. There's no sign-up, no login, and nothing to lose access to.
FermenTree doesn't run a server, doesn't create accounts, and doesn't use analytics or advertising SDKs. Even its predictions and Apple Intelligence insights run entirely on-device — there's simply nothing to track.