The Buddy System
CoffeeBuddy

Log every brew, then let the journal tell you your own taste

Everyone has an opinion about how you should brew. CoffeeBuddy has no opinion at all. It just logs what you actually did, and after a few weeks it starts telling you where your own best cups came from.

$5 once on the App Store · from $10/year on the web · 7-day free trial

CoffeeBuddy on iPhone

What you get

  • Eight methods: espresso, pour-over, French press, AeroPress, moka, cold brew, drip, siphon
  • A pour-by-pour timer, with bloom handled properly
  • Insights that read your journal back to you
  • A brew-water calculator with eleven community recipes
  • Cost per brew, per bag, and a 35-column CSV export

Two ways to use it

iPhone & iPad
One-time purchase, no account
$5
Any browser
Cancel any time
$1/mo
or $10/yr
Start a free trial

All five apps together: $3/month, or $30/year

A look inside

CoffeeBuddy: This morning's brew
This morning's brew
CoffeeBuddy: Pour by pour
Pour by pour
CoffeeBuddy: The journal
The journal
CoffeeBuddy: What your journal noticed
What your journal noticed
CoffeeBuddy: Bags on the shelf
Bags on the shelf
CoffeeBuddy: The water calculator
The water calculator

The bits worth explaining

Insights, not dashboards

The Insights tab writes sentences: “your best filter brews cluster around 1:16”. It only speaks when a pattern has at least two rated brews on each side and a clear half-star gap, so it stays quiet rather than making things up.

Every method already knows its recipe

Pick AeroPress and the dose, ratio, temperature, grind and step timing are already filled in. Change what you like. The point is that you never start from an empty form at 7am.

Water is a variable too

Eleven community water recipes plus your own, and a calculator that turns a GH/KH target into grams of Epsom salt and baking soda. The water gets frozen onto the brew, so it shows up in your ratings later.

The bag, not just the cup

Every bag is a card with roast date, process, origin and a cost-per-brew figure. Days-off-roast is recorded on each brew, which is how the rest window in your Insights gets discovered.

Get CoffeeBuddy

Buy it once on iPhone, or run the full web version in any browser.