Kohii — The Barista Log

Eri Tech

Contains adsIn-app purchases

About this app

Kohii is a calm, beautiful coffee journal app for people who care how their cup tastes. Save every brew, track every bag, and slowly dial in your perfect cup — all on a warm, paper-like canvas inspired by the Japanese kissaten. Fully offline, no account, no subscription.

— A coffee brew diary for every method —
Whether you pull espresso, pour over a V60 or Chemex, press an AeroPress or French press, screw together a moka pot, or batch a cold brew, Kohii journals it. Record dose, yield, water, brew time, grind setting, and temperature, and watch your brew ratio calculate live as you type. It's the espresso tracker and pour over coffee journal you've been keeping in a notebook — finally in one place.

— Track your beans —
Build a shelf of every bag you buy. Save the roaster, origin, process, roast date, weight, and price, then watch a gentle freshness countdown tell you when each bag is at its peak. This bean tracking app remembers what you bought, when you opened it, and how it brewed — so your next bag is a smarter choice.

— Rate every cup —
Score each brew across Acidity, Bitterness, Sweetness, Body, and an Overall rating using a tactile bean scale. Over time your coffee brew diary becomes a personal taste archive — you'll see exactly which beans and recipes you loved.

— Find your best brew —
For every bag, Kohii surfaces your highest-rated cup as its "Best Brew," with the full recipe saved. One tap on "Brew Again" pre-fills a fresh brew with those exact settings, so a great cup is repeatable, not lucky.

— A built-in ratio calculator —
Dialing in a new recipe? The coffee ratio calculator works out dose, water, or ratio from any two values — no mental math at the counter.

— Yours, and private —
Kohii is fully offline. Your entire coffee journal lives in a local database on your device — nothing is uploaded, synced, or sold. Back up and restore your journal whenever you like, on your terms.

— Simple, honest pricing —
Kohii is free to use. A single one-time Premium unlock removes ads and lifts the shelf limit for unlimited bags. No subscription, ever.

Kohii is the barista log for home baristas, specialty coffee lovers, and anyone chasing a better cup — a quiet, well-made companion for the daily ritual of making coffee.

Also by Eri Tech Studios — The Bake Log · Warranty Box

What’s new

Welcome to Kohii — The Barista Log.

Everything you need to remember your coffee:

• Track every bag — roaster, origin, process and a freshness countdown
• Log brews: espresso, pour-over, AeroPress, French press, moka pot and more
• Rate each cup for acidity, bitterness, sweetness and body
• See your best brew per bag and repeat it in one tap
• A built-in ratio calculator

Fully offline. No account, no subscription.