# Mecha Fire vs Watch Your Back

The clearest difference is ads: Watch Your Back at none against Mecha Fire's shown. Mecha Fire's advantage is chart position (#180 vs unranked) and update cadence (fortnightly vs monthly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Mecha Fire sells 10 one-off in-app purchases and Watch Your Back sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mecha Fire ships an update fortnightly, Watch Your Back monthly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Mecha Fire | Watch Your Back |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (17K ratings)](https://appshunter.io/ios/app/mecha-fire/id6740192482/reviews)** | — |
| Number of ratings | **17K** | — |
| Positive reviews | 40.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#180** | — |
| Size | 813 MB | 72 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [LEXIANGCO.,LIMITED](https://appshunter.io/developer/1468865680) | [Jonathan Estuardo Benavides Vallejo](https://appshunter.io/developer/1727183992) |

## What reviewers say

### Mecha Fire

[App page](https://appshunter.io/ios/app/mecha-fire/id6740192482)

**Currently charting:** #180 Top Grossing · Strategy (US App Store)

Lead a Mecha army and powerful Heroes to defend a Martian colony from native creatures. Develop advanced technologies, construct defenses, and manage resources to ensure humanity's survival. Collaborate with other players to forge alliances and strategize for victory.

**Highlights:** Command unique Heroes, Build and upgrade colony base, Research advanced technologies, Train diverse Mecha units, Form alliances with players, Strategic combat gameplay

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Treasures Pack | $0.99 | one-time |
| Treasures Pack | $1.99 | one-time |
| Treasures Pack | $2.99 | one-time |
| Treasures Pack | $3.99 | one-time |
| Treasures Pack | $4.99 | one-time |
| Treasures Pack | $9.99 | one-time |
| Treasures Pack | $19.99 | one-time |
| Treasures Pack | $24.99 | one-time |
| Treasures Pack | $49.99 | one-time |
| Treasures Pack | $99.99 | one-time |

**What reviewers like**

- 🙂 Fun game
- 🌟 Unique game
- 👍 Always something to do

**What reviewers complain about**

- 🔇 No way to turn off background music
- 🤖 Robotic character voices
- 🕹️ Overly complex and chaotic
- 💰 Not worth spending money on
- 🐛 Glitchy

**Reported bugs**

- Compatibility issues with older devices
- Frequent crashes and problems since joining

**Requested features**

- Simpler single-player experience
- Ability to freely move structures in base
- More hero options


### Watch Your Back

[App page](https://appshunter.io/ios/app/watch-your-back-zombies/id6804411264)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Watch Your Back - Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is Mecha Fire free?

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

### Is Watch Your Back free?

Watch Your Back is free to download, with in-app purchases available.

### Do Mecha Fire or Watch Your Back have ads?

Mecha Fire shows ads; Watch Your Back does not.

### Which is updated more often, Mecha Fire or Watch Your Back?

Mecha Fire ships an update fortnightly, and Watch Your Back monthly. Most recently, Mecha Fire was updated on November 3, 2026 and Watch Your Back on October 29, 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.*