# Ratio M8: Coffee Calculator — Brew ratio and stopwatch

> Calculate ideal coffee-to-water ratios for brewing with a built-in stopwatch. (iPhone/iPad app by Adventurous2 Ltd.)

- Source: https://appshunter.io/ios/app/ratio-m8-coffee-calculator/id1637237516 (this page in markdown: same URL + `.md`)
- Developer: [Adventurous2 Ltd](https://appshunter.io/developer/1823663599)
- Category: Food & Drink, Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 22 MB
- Languages: American English
- Released: 2023-02-12
- Data updated: 2026-10-24
- Monetization: free

## What is Ratio M8?

Ratio M8 calculates coffee and water amounts from a brew ratio.

Set the ratio, then enter the amount of coffee or water. The app calculates the other one.

Works with any brewing method: pour-over, French press, AeroPress, espresso. Ratios go from 1:1 to 1:30.

Features:
• Ratio, coffee and water scales, in grams
• Brew estimate: the expected amount of coffee in the cup after the grounds absorb some of the water
• Stopwatch for timing brewing phases
• Light, dark and automatic themes
• Haptic feedback, which can be turned off
• The screen stays on while the app is open
• No data is collected

Tips:
• Tap the left or right side of a scale to change the value by 0.1.
• Touch and hold either side to change it by 1.

## Key features

- Calculate coffee-to-water ratios
- Input coffee bean amount
- Input water amount
- In-app stopwatch
- Precise gram adjustments

## Is Ratio M8 safe?

Not enough ratings yet to assess Ratio M8.

## Is Ratio M8 legit?

Ratio M8: Coffee Calculator appears to be a legitimate app. The AppsHunter Legitimacy Score for Ratio M8 is 85 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Ratio M8

### How does Ratio M8 help me brew coffee?

Ratio M8 helps you calculate the perfect coffee-to-water ratio for your brew. You can input the amount of coffee beans you have and it will tell you how much water to use, or vice versa.

### Can I adjust the ratio precisely with Ratio M8?

Yes, you can tap the left or right side of the slider to add or remove 0.1 gram, and long tap to add or remove 1 gram for precise adjustments to your coffee and water measurements.

### Does Ratio M8 have a stopwatch for brewing?

Yes, Ratio M8 includes an in-app stopwatch to help you control different brewing phases accurately, ensuring consistency in your coffee preparation.

### What devices does Ratio M8 support?

Ratio M8 is available for iPhone, iPad, and iPod devices, making it accessible for a wide range of Apple users.

### How often is Ratio M8 updated?

The latest version, 2.0.0, was released on October 13, 2025, indicating active development and regular updates for the application.

### Is Ratio M8 suitable for beginners?

Yes, Ratio M8 is designed to take the guesswork out of brewing, making it ideal for beginners who want to achieve a perfect cup of coffee without complex calculations.

### What is the age rating for Ratio M8?

Ratio M8 has an age rating of 4+, meaning it is suitable for users of all ages and does not contain any mature content.

### Does Ratio M8 have ads?

No, Ratio M8 is completely ad-free, providing an uninterrupted user experience for calculating coffee ratios and using the stopwatch.

## Version history (last 4 releases)

### 2.1.0 — 2026-10-18

• Use the app in your language: 37 languages are now supported
• New app icon
• Small design tweaks and bug fixes

### 2.0.0 — 2025-10-13

• New feature: stopwatch to follow brewing phases
• Settings page to control haptic feedback, app theme and brew estimate visibility
• UI improvements
• Bug fixes

### 1.0.6 — 2023-03-12

• Dark and light theme improvements
• Scrolling fixes

### 1.0 — 2023-02-12

No release notes.

## Apps similar to Ratio M8

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Coffee Ratios](https://appshunter.io/ios/app/coffee-ratios/id1625216375) | 5.0 (5) | Free | Food & Drink |
| [Coffee Brew Ratio](https://appshunter.io/ios/app/coffee-brew-ratio/id6756632959) | 5.0 (1) | Free | Food & Drink |
| [Optimal Coffee Notes](https://appshunter.io/ios/app/optimal-coffee-notes/id1583625309) | 5.0 (5) | Free | Food & Drink |
| [Bean Juice](https://appshunter.io/ios/app/bean-juice/id1502380351) | 4.6 (14) | Free | Food & Drink |
| [Coffee Ratio Calculator](https://appshunter.io/ios/app/coffee-ratio-calculator/id6443783115) | 4.8 (9) | Free | Food & Drink |
| [Brew Timer : Make Great Coffee](https://appshunter.io/ios/app/brew-timer-make-great-coffee/id6473278962) | 4.4 (24) | Free | Food & Drink |

## More apps by Adventurous2 Ltd

- [Mister Rebus](https://appshunter.io/ios/app/mister-rebus/id6747975462)
- [Word Search - Wordodo Journey](https://appshunter.io/ios/app/word-search-wordodo-journey/id6748605378)
- [Sanamato](https://appshunter.io/ios/app/sanamato/id6759522324)

All apps by Adventurous2 Ltd: https://appshunter.io/developer/1823663599

## Related topics

[coffee ratio calculator pro](https://appshunter.io/ios/topics/coffee-ratio-calculator-pro) · [coffee brew ratio calculator](https://appshunter.io/ios/topics/coffee-brew-ratio-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*