# Snake o.S. vs Prehistoric Worm Worlds

The clearest difference is in-app purchases: Snake o.S. at none against Prehistoric Worm Worlds's 10. Snake o.S. also leads on ads (none vs shown) and review sentiment (100% vs 89%). Prehistoric Worm Worlds's advantage is rating (4.7 vs 4.3) and update cadence (every 3 weeks vs every 3 months). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Prehistoric Worm Worlds sells 10 one-off in-app purchases. Snake o.S. asks for nothing beyond the download.

Prehistoric Worm Worlds holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 21 and 26 respectively. Written reviews complicate that: 100% of Snake o.S.'s written reviews are positive against 89% of Prehistoric Worm Worlds's, so the app with the better star average is not the one people write more warmly about.

Snake o.S. ships an update every 3 months, Prehistoric Worm Worlds every 3 weeks. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Snake o.S. | Prehistoric Worm Worlds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (21 ratings)](https://appshunter.io/ios/app/snake-os/id611617566/reviews) | **[4.7 (26 ratings)](https://appshunter.io/ios/app/prehistoric-worm-worlds/id6502689727/reviews)** |
| Number of ratings | 21 | **26** |
| Positive reviews | **100.0% of reviews** | 88.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 33 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [David Gavilan](https://appshunter.io/developer/611617569) | [Dominik Rossmanith](https://appshunter.io/developer/1570965177) |

## What reviewers say

### Snake o.S.

[App page](https://appshunter.io/ios/app/snake-os/id611617566)

Guide a growing snake through different game modes, including a story and an infinite race. Unlock additional challenges by completing the narrative. Explore a unique world where a giant serpent is the protagonist.

**Highlights:** Guide and grow the snake, Story mode, Infinite race mode, Unlockable game modes, Hints for unlocking content

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

**In-app purchases:** none


### Prehistoric Worm Worlds

[App page](https://appshunter.io/ios/app/prehistoric-worm-worlds/id6502689727)

Control a prehistoric worm to destroy pixelated worlds, collect cards, and evolve your creature. Engage in addictive destruction gameplay with retro pixel art and build powerful decks to conquer diverse environments and military forces. Enjoy offline play and regular updates.

**Highlights:** Addictive destruction gameplay, Pixel art style, Card collecting and deck building, Explore diverse worlds, Fight military forces, Offline play, Regular updates

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Packs | $0.99 | one-time |
| Small special packs | $0.99 | one-time |
| Medium Special Packs | $1.99 | one-time |
| No Ads | $1.99 | one-time |
| Combo Pack | $2.99 | one-time |
| Starter pack | $3.99 | one-time |
| Huge Special Packs | $3.99 | one-time |
| King Coins | $5.99 | one-time |
| King Packs | $5.99 | one-time |
| King Special Packs | $5.99 | one-time |


## Frequently asked questions

### Is Snake o.S. free?

Snake o.S. is free to download, with no in-app purchases.

### Is Prehistoric Worm Worlds free?

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

### Which has better reviews, Snake o.S. or Prehistoric Worm Worlds?

Prehistoric Worm Worlds is rated higher. Snake o.S. averages 4.3 out of 5 from 21 ratings, while Prehistoric Worm Worlds averages 4.7 from 26 ratings.

### Do Snake o.S. or Prehistoric Worm Worlds have ads?

Prehistoric Worm Worlds shows ads; Snake o.S. does not.

### Which is updated more often, Snake o.S. or Prehistoric Worm Worlds?

Snake o.S. ships an update every 3 months, and Prehistoric Worm Worlds every 3 weeks. Most recently, Snake o.S. was updated on November 1, 2026 and Prehistoric Worm Worlds on November 4, 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.*