# Colossatron vs Worm.io

The clearest difference is rating: Worm.io at 4.6 against Colossatron's 3.5. Worm.io also leads on monetization model (free with in-app purchases vs subscription) and update cadence (every 3 weeks vs every 2 months). Colossatron's advantage is ads (none vs shown) and ratings volume (1.3K vs 83). On price, in-app purchases 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 and Worm.io sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Worm.io holds the better App Store score, 4.6 against 3.5. That said, the two scores are not equally well evidenced: Colossatron has 1.3K ratings behind it against 83, so its average is the more settled of the two. Written reviews point the same way: 37% of Colossatron's written reviews are positive against 50% of Worm.io's.

Colossatron ships an update every 2 months, Worm.io every 3 weeks. The most recent releases landed on September 26, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Colossatron | Worm.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (1.3K ratings)](https://appshunter.io/ios/app/colossatron/id680436745/reviews) | **[4.6 (83 ratings)](https://appshunter.io/ios/app/wormio-snake-battle/id1640679658/reviews)** |
| Number of ratings | **1.3K** | 83 |
| Positive reviews | 36.6% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 149 MB | 202 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Halfbrick](https://appshunter.io/developer/356994313) | [Ruslan Shayhutdinov](https://appshunter.io/developer/1326595663) |

## 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


### Worm.io

[App page](https://appshunter.io/ios/app/wormio-snake-battle/id1640679658)

Control a growing snake, consuming food and rewards to become the biggest worm. Engage in battles against other snakes, both online and offline, to achieve high scores and unlock new characters. This addictive game offers simple controls and smooth gameplay.

**Highlights:** Snake battle vs worms, Online and offline play, Smooth gameplay and HD graphics, Mobile joystick controls, Unlock new skins and characters, Collect rewards and coins

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unique Skin | $1.99 | one-time |
| Legend Skin | $1.99 | one-time |
| No Ads | $2.99 | one-time |
| Special Offer | $2.99 | one-time |
| Starter Pack | $2.99 | one-time |


## Frequently asked questions

### Is Colossatron free?

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

### Is Worm.io free?

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

### Which has better reviews, Colossatron or Worm.io?

Worm.io is rated higher. Colossatron averages 3.5 out of 5 from 1.3K ratings, while Worm.io averages 4.6 from 83 ratings.

### Do Colossatron or Worm.io have ads?

Worm.io shows ads; Colossatron does not.

### Which is updated more often, Colossatron or Worm.io?

Colossatron ships an update every 2 months, and Worm.io every 3 weeks. Most recently, Colossatron was updated on September 26, 2026 and Worm.io on September 8, 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.*