Snake o.S. vs TunnelWorm
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Snake o.S.
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.
- Guide and grow the snake
- Story mode
- Infinite race mode
- Unlockable game modes
- Hints for unlocking content
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SoS: Snake on a Sphere :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Guide the snake, let her eat, and see it grow! A story mode and a infinite race mode! Clear the story mode and use the hints within the game to unlock 3 different game modes. More info: * http://snake.endavid.com/
TunnelWorm
Guide a worm through increasingly challenging obstacles. Test your reflexes and endurance as the speed and difficulty escalate. Aim to survive as long as possible and surpass your personal best score.
- Obstacle avoidance
- Increasing speed and difficulty
- High score tracking
- Simple controls
- Addictive gameplay
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Help your worm to pass obstacles carefully. The further you go, faster and harder will be. How long can your worm live? Can you beat your high score?
Screenshots
Verdict
The clearest difference is rating: TunnelWorm at 4.6 against Snake o.S.'s 4.3. TunnelWorm also leads on device support (5 vs 3) and iOS requirement (10.0 vs 12.0). Snake o.S.'s advantage is ratings volume (21 vs 5). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TunnelWorm holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 21 and 5 respectively.
Snake o.S. ships an update every 3 months, TunnelWorm every 4 months. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.
| Parameter | Snake o.S. | TunnelWorm |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (21 ratings) | 4.6 (5 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 21 — better | 5 |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple TV, Apple Watch — better |
| Requires iOS | 12.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | David Gavilan | Marek Sokol |
Customer experience
Snake o.S.
TunnelWorm
In-app purchases
Snake o.S.
No in-app purchases
TunnelWorm
No in-app purchases
Questions
Is Snake o.S. free?
Is TunnelWorm free?
Which has better reviews, Snake o.S. or TunnelWorm?
Do Snake o.S. or TunnelWorm have ads?
Which is updated more often, Snake o.S. or TunnelWorm?
Other comparisons
