# Colossatron vs Calm Blokku

The clearest difference is in-app purchases: Calm Blokku at none against Colossatron's 9. Calm Blokku also leads on update cadence (every 3 days vs every 2 months). Colossatron's advantage is ads (none vs shown) and iOS requirement (11.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Colossatron sells 6 in-app purchases, starting at $2.99 per month. Calm Blokku asks for nothing beyond the download.

Colossatron ships an update every 2 months, Calm Blokku every 3 days. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Colossatron | Calm Blokku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (1.4K ratings)](https://appshunter.io/ios/app/colossatron/id680436745/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 36.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Subscription | — |
| Size | 149 MB | 27 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Halfbrick Studios](https://appshunter.io/developer/356994313) | [KOYA TAMURA](https://appshunter.io/developer/1868981589) |

## What reviewers say

### Colossatron

[App page](https://appshunter.io/ios/app/colossatron/id680436745)

Control a giant robotic snake and destroy cities in this unique blend of Match 3 and Snake gameplay. Merge power-ups to build devastating weapons and defeat formidable bosses across a chaotic global campaign. Experience intense boss fights and survival challenges without interruptions.

**Highlights:** Match 3 and Snake gameplay, Build and merge weapons, Global campaign mode, Epic boss fights, Intense survival challenges, No ads or in-app purchases (with subscription)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Halfbrick+ | $2.99 | per month |
| Halfbrick+ (Trial) | $2.99 | per month |
| Halfbrick+ (Early Adopter) | $2.99 | per month |
| Halfbrick+ | $29.99 | per year |
| Halfbrick+ | $29.99 | per year |
| Halfbrick+ | $99.99 | one-time |

**What reviewers like**

- 🎮 Fun and addictive gameplay
- 🎨 Unique concept of controlling a destructive 'Colossatron'
- 🔥 Satisfying destruction and mayhem
- 💫 Nostalgic for many users

**What reviewers complain about**

- 💰 Locked behind a subscription paywall
- 🤖 Lack of player control over Colossatron's movement
- 🔁 Repetitive campaign with limited content
- 🐛 Performance issues and crashes on some devices

**Reported bugs**

- Progress loss due to cloud sync issues
- Incompatibility with newer devices like iPad Pro

**Requested features**

- More levels and content updates
- Ability to control Colossatron's movement
- Option to purchase the game outright instead of subscription
- Difficulty settings and new game modes


### Calm Blokku

[App page](https://appshunter.io/ios/app/calm-blokku/id6761009357)

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

**In-app purchases:** none


## Frequently asked questions

### Is Colossatron free?

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

### Is Calm Blokku free?

Calm Blokku is free to download, with no in-app purchases.

### Do Colossatron or Calm Blokku have ads?

Calm Blokku shows ads; Colossatron does not.

### Which is updated more often, Colossatron or Calm Blokku?

Colossatron ships an update every 2 months, and Calm Blokku every 3 days. Most recently, Colossatron was updated on October 20, 2026 and Calm Blokku on October 5, 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.*