# Ninja Robo Chef vs Underwater Runner

The clearest difference is in-app purchases: Underwater Runner at none against Ninja Robo Chef's 1. Underwater Runner also leads on update cadence (every 4 days vs every 24 months). Ninja Robo Chef's advantage is ads (none vs shown) and iOS requirement (9.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. Ninja Robo Chef sells 1 one-off in-app purchase. Underwater Runner asks for nothing beyond the download.

Ninja Robo Chef ships an update every 24 months, Underwater Runner every 4 days. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Ninja Robo Chef | Underwater Runner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | **Every 4 days** |
| Size | 193 MB | 182 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TapMafia](https://appshunter.io/developer/1064412019) | [Ankit Kanani](https://appshunter.io/developer/1800427460) |

## What reviewers say

### Ninja Robo Chef

[App page](https://appshunter.io/ios/app/ninja-robo-chef/id1470390593)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Underwater Runner

[App page](https://appshunter.io/ios/app/underwater-runner/id6742896513)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ninja Robo Chef free?

Ninja Robo Chef is free to download, with in-app purchases available.

### Is Underwater Runner free?

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

### Do Ninja Robo Chef or Underwater Runner have ads?

Underwater Runner shows ads; Ninja Robo Chef does not.

### Which is updated more often, Ninja Robo Chef or Underwater Runner?

Ninja Robo Chef ships an update every 24 months, and Underwater Runner every 4 days. Most recently, Ninja Robo Chef was updated on October 10, 2026 and Underwater Runner on October 25, 2026.

---

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