# 3D FIRELINE vs Кортрос Ключи

The clearest difference is iOS requirement: 3D FIRELINE at 13.0 against Кортрос Ключи's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

3D FIRELINE ships an update fortnightly, Кортрос Ключи every 3 weeks. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 3D FIRELINE | Кортрос Ключи |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 29 MB | 58 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sheneman Roman](https://appshunter.io/developer/1157550690) | [СКБ Техно](https://appshunter.io/developer/1746087258) |

## What reviewers say

### 3D FIRELINE

[App page](https://appshunter.io/ios/app/3d-fireline/id1583544936)

**Features:** macOS Compatibility

**In-app purchases:** none


### Кортрос Ключи

[App page](https://appshunter.io/ios/app/id6785784562)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3D FIRELINE free?

3D FIRELINE is free to download, with no in-app purchases.

### Is Кортрос Ключи free?

Кортрос Ключи is free to download, with no in-app purchases.

### Do 3D FIRELINE or Кортрос Ключи have ads?

Neither 3D FIRELINE nor Кортрос Ключи shows ads.

### Which is updated more often, 3D FIRELINE or Кортрос Ключи?

3D FIRELINE ships an update fortnightly, and Кортрос Ключи every 3 weeks. Most recently, 3D FIRELINE was updated on November 7, 2026 and Кортрос Ключи on November 10, 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.*