# Submarine 3D simulator vs CCF Challenge

The clearest difference is in-app purchases: CCF Challenge at none against Submarine 3D simulator's 1. CCF Challenge also leads on ads (none vs shown). Submarine 3D simulator's advantage is update cadence (every 3 days vs weekly) and iOS requirement (15.0 vs 26.2). On price and device support there is nothing between them.

Both are free to download. Submarine 3D simulator sells 1 one-off in-app purchase. CCF Challenge asks for nothing beyond the download.

Submarine 3D simulator ships an update every 3 days, CCF Challenge weekly. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Submarine 3D simulator | CCF Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (14 ratings)](https://appshunter.io/ios/app/submarine-3d-simulator/id1644390674/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 252 MB | 15 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Katsushi Kuroki](https://appshunter.io/developer/1644390976) | [AMR TEAM TOKAI, LLC](https://appshunter.io/developer/1882537825) |

## What reviewers say

### Submarine 3D simulator

[App page](https://appshunter.io/ios/app/submarine-3d-simulator/id1644390674)

Command a German U-boat in a realistic World War II simulator. Engage in naval warfare, target enemy ships with torpedoes, and evade detection using hydrophones and strategic diving. Experience authentic controls and immersive 3D graphics.

**Highlights:** Realistic submarine controls, Authentic torpedo targeting, Hydrophone for enemy detection, Time compression gameplay, High-quality 3D graphics, Auto-save feature

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### CCF Challenge

[App page](https://appshunter.io/ios/app/ccf-challenge/id6760103123)

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

**In-app purchases:** none


## Frequently asked questions

### Is Submarine 3D simulator free?

Submarine 3D simulator is free to download, with in-app purchases available.

### Is CCF Challenge free?

CCF Challenge is free to download, with no in-app purchases.

### Do Submarine 3D simulator or CCF Challenge have ads?

Submarine 3D simulator shows ads; CCF Challenge does not.

### Which is updated more often, Submarine 3D simulator or CCF Challenge?

Submarine 3D simulator ships an update every 3 days, and CCF Challenge weekly. Most recently, Submarine 3D simulator was updated on October 24, 2026 and CCF Challenge on October 17, 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.*