# Delta vs Coffee Clock

The clearest difference is in-app purchases: Coffee Clock at none against Delta's 1. Coffee Clock also leads on iOS requirement (13.0 vs 17.0). Delta's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Delta sells 1 one-off in-app purchase. Coffee Clock asks for nothing beyond the download.

Delta ships an update every 11 days, Coffee Clock every 2 weeks. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Delta | Coffee Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Size | 17 MB | 30 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Marcel Timm](https://appshunter.io/developer/1846068948) | [Luc Pham Van](https://appshunter.io/developer/1544588097) |

## What reviewers say

### Delta

[App page](https://appshunter.io/ios/app/delta-tdee-tracker/id6753978074)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delta Unlimited | $2.99 | one-time |


### Coffee Clock

[App page](https://appshunter.io/ios/app/coffee-clock/id6762287408)

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

**In-app purchases:** none


## Frequently asked questions

### Is Delta free?

Delta is free to download, with in-app purchases available.

### Is Coffee Clock free?

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

### Do Delta or Coffee Clock have ads?

Coffee Clock shows ads; Delta does not.

### Which is updated more often, Delta or Coffee Clock?

Delta ships an update every 11 days, and Coffee Clock every 2 weeks. Most recently, Delta was updated on September 9, 2026 and Coffee Clock on September 10, 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.*