# Dieter Clock vs NAGI Step

The clearest difference is in-app purchases: Dieter Clock at none against NAGI Step's 4. Dieter Clock also leads on ads (none vs shown). NAGI Step's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. NAGI Step sells 4 in-app purchases, starting at $2.99 per month. Dieter Clock asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Dieter Clock | NAGI Step |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 5 MB | 117 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oguzhan Bilgin](https://appshunter.io/developer/1848626364) | [Yuma Isshiki](https://appshunter.io/developer/1845599650) |

## What reviewers say

### Dieter Clock

[App page](https://appshunter.io/ios/app/dieter-clock/id6754521171)

**In-app purchases:** none


### NAGI Step

[App page](https://appshunter.io/ios/app/nagi-step-plan-your-focus/id6758257122)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NAGI Timer Plus Monthly | $2.99 | per month |
| NAGI Timer Plus Yearly | $19.99 | per year |
| 30 AI Credits | $1.99 | one-time |
| 100 AI Credits | $4.99 | one-time |


## Frequently asked questions

### Is Dieter Clock free?

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

### Is NAGI Step free?

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

### Do Dieter Clock or NAGI Step have ads?

NAGI Step shows ads; Dieter Clock does not.

### Which is updated more often, Dieter Clock or NAGI Step?

Dieter Clock ships an update every 3 weeks, and NAGI Step every 3 weeks. Most recently, Dieter Clock was updated on October 16, 2026 and NAGI Step on October 25, 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.*