For iOS & Android

Your brew-by-brew dial-in log.

Pick a bean, pick a grinder, pick a brew method, then log every brew with grind setting, dose, yield, time, and rating. Tap Adjust & re-brew to chase the sweet spot one variable at a time.

Download on the App Store Get it on Google Play

What it does

Track beans

Roaster, name, origin, varietal, process, roast level, notes.

Track grinders

Any dial pattern works: integer steps, fractional, stepless, even negative settings (1Zpresso-style).

Track brew methods

V60, Chemex, AeroPress, espresso, French press, Moka, Turkish, cold brew — or whatever you invent.

Log brews

Full recipe, 1–10 rating, tasting notes, flavor tags.

Adjust & re-brew

Duplicate any past brew so you can change one variable and try again.

Per-bean dial-in view

See your attempts grouped by (grinder, brew method) and watch the grind move across tries.

Independent unit prefs

Grams for grounds, ounces for liquid, °C or °F — mix freely.

Fully offline

Every screen works without a network connection.

No accounts. No ads. No tracking.

Your data lives on your device.

Backup, not sync

Brew Tuner doesn't use the cloud. Settings → Backup & restore exports your data to a single JSON file you can save anywhere — iCloud Drive, Google Drive, email, AirDrop. Restore on a new device by picking the file back up.

There's no account to lose, no server to outage, no privacy trade. Just a coffee log that's actually yours.

What it looks like

Per-bean dial-in view showing 4 brews on a Sweet Bloom Ibonia, grouped by grinder and method, with the best brew (a 10/10 V60 at grind 17) called out at the top. — **The per-bean dial-in view.** Every brew you've logged on a bean, grouped by (grinder, brew method), with your best brew surfaced at the top. Open it on a returning bean and you're back where you left off.

Brew detail screen showing grind setting 17, rating 10, recipe (30g dose, 350g yield, 3:00 time, 85°C), with Adjust this brew, Re-brew from this recipe, and Delete brew action buttons. — **Brew detail.** Adjust this brew to fill in what you missed in the moment. Re-brew to start a new attempt from this recipe.

Brew Tuner home screen with a Today card, library stats (6 grinders, 8 methods), and a recent brews list. — **Home.** Tap once to log a brew, see your library at a glance, jump back into recent attempts.

Grinders library showing 1Zpresso JX-Pro (-1 to 9 clicks, step 0.1), Baratza Encore (1-40 numbers), Comandante C40 MK4 (0-40 clicks), Niche Zero, and more. — **Any grinder.** Integer steps, fractional, stepless, even negative settings. Common models pre-loaded.

Questions or feedback?

Email support@brewtuner.app — or read the support page for common questions.