# Dieter Clock vs Shitaku

The clearest difference is in-app purchases: Dieter Clock at none against Shitaku's 1. Dieter Clock also leads on device support (4 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

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

Dieter Clock ships an update every 3 weeks, Shitaku every 4 weeks. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Dieter Clock | Shitaku |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 11 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oguzhan Bilgin](https://appshunter.io/developer/1848626364) | [Kodai Suzuki](https://appshunter.io/developer/1870550948) |

## What reviewers say

### Dieter Clock

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

**In-app purchases:** none


### Shitaku

[App page](https://appshunter.io/ios/app/shitaku/id6767852777)

Manage your pre-departure routines with a step-by-step timer. Visualize your preparation process, track time spent on each task, and ensure you leave on time. Save common routines as templates for quick access.

**Highlights:** Step-by-step timer for preparation tasks, Countdown from departure time, Template creation for routines, Task completion, pause, and skip, Local notifications and widgets, Live Activity / Dynamic Island support, Record and compare actual vs. planned times

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shitaku Plus | $1.99 | one-time |


## Frequently asked questions

### Is Dieter Clock free?

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

### Is Shitaku free?

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

### Do Dieter Clock or Shitaku have ads?

Neither Dieter Clock nor Shitaku shows ads.

### Which is updated more often, Dieter Clock or Shitaku?

Dieter Clock ships an update every 3 weeks, and Shitaku every 4 weeks. Most recently, Dieter Clock was updated on October 16, 2026 and Shitaku on October 12, 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.*