# Ninja Fight Clock vs Time Delay calculator

The clearest difference is in-app purchases: Time Delay calculator at none against Ninja Fight Clock's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ninja Fight Clock sells 1 one-off in-app purchase. Time Delay calculator asks for nothing beyond the download.

Ninja Fight Clock ships an update every 3 weeks, Time Delay calculator fortnightly. The most recent releases landed on July 29, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Ninja Fight Clock | Time Delay calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 25 MB | 36 MB |
| Requires iOS | **14.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Ninja Fight Clock

[App page](https://appshunter.io/ios/app/ninja-fight-clock/id6461210488)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ninja Fight Clock with no ads | $2.99 | one-time |


### Time Delay calculator

[App page](https://appshunter.io/ios/app/time-delay-calculator/id6502032872)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ninja Fight Clock free?

Ninja Fight Clock is free to download, with in-app purchases available.

### Is Time Delay calculator free?

Time Delay calculator is free to download, with no in-app purchases.

### Do Ninja Fight Clock or Time Delay calculator have ads?

Both Ninja Fight Clock and Time Delay calculator show ads.

### Which is updated more often, Ninja Fight Clock or Time Delay calculator?

Ninja Fight Clock ships an update every 3 weeks, and Time Delay calculator fortnightly. Most recently, Ninja Fight Clock was updated on July 29, 2026 and Time Delay calculator on September 18, 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.*