# Coffee DTR Timer vs RoastSignal

The clearest difference is iOS requirement: RoastSignal at 15.1 against Coffee DTR Timer's 18.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Coffee DTR Timer ships an update every 9 days, RoastSignal every 10 days. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Coffee DTR Timer | RoastSignal |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 10 days |
| Monetization | Free | — |
| Size | 1 MB | 26 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mike Whaley](https://appshunter.io/developer/1720535901) | [Ankur Agarwal](https://appshunter.io/developer/6772143776) |

## What reviewers say

### Coffee DTR Timer

[App page](https://appshunter.io/ios/app/coffee-dtr-timer/id6749510887)

This app helps coffee roasters time their roasts accurately. It allows users to input roaster, bean, and weight details, then track key stages like yellowing and first crack. The timer calculates development time, weight loss, and provides a roast summary for logging.

**Highlights:** Roast stage timing (Yellowing, First Crack, Drop), Live Development Time (DTR) calculation, Weight loss calculation, Roast history logging, Favorite and delete roasts, Custom roaster and bean input

**Features:** macOS Compatibility

**In-app purchases:** none


### RoastSignal

[App page](https://appshunter.io/ios/app/roastsignal/id6772143774)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Coffee DTR Timer free?

Coffee DTR Timer is free to download, with no in-app purchases.

### Is RoastSignal free?

RoastSignal is free to download, with no in-app purchases.

### Do Coffee DTR Timer or RoastSignal have ads?

Neither Coffee DTR Timer nor RoastSignal shows ads.

### Which is updated more often, Coffee DTR Timer or RoastSignal?

Coffee DTR Timer ships an update every 9 days, and RoastSignal every 10 days. Most recently, Coffee DTR Timer was updated on September 11, 2026 and RoastSignal on September 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*