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The ratio app for
serious coffee.

Calculate your recipe. Dial in every variable. Share it as a link. Ratio, Nau is built for people who measure.

Ratio
1:15
Coffee
20 g
Water
300 g
Temp
93°C
Time
4:00
Method
V60

Every variable. One link.

Recipes to discover, details to refine, community to share without losing the method.

Every recipe is a link.

Share any recipe with a URL. On the other end: the full parameters, readable in a browser, openable directly in the app. No screenshots. No copy-paste.

Opens in the app if installed. Full recipe visible in the browser otherwise.

Screenshot of the recipe feed inside the Ratio, Nau app.

The numbers that matter.

Ratio, dose, water temperature, grind size, brew time. Log every parameter, every time. Your recipes don't have to live in a notes app.

Now with grind conversion on screen, so you can move from one grinder to another without losing your reference point.

Screenshot of the grind conversion view inside the Ratio, Nau app.
Screenshot of the brew timer inside the Ratio, Nau app.

Measure once. Share forever.

Free to download. Your recipes, your ratios, your community.