# TunnelWorm vs Guess Size

The clearest difference is update cadence: Guess Size at every 3 days against TunnelWorm's every 4 months. TunnelWorm's advantage is device support (5 vs 2) and iOS requirement (10.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TunnelWorm ships an update every 4 months, Guess Size every 3 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TunnelWorm | Guess Size |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/tunnelworm/id1294101736/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 52 MB | 2 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Apple TV, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marek Sokol](https://appshunter.io/developer/1238312847) | [Remi Cassan](https://appshunter.io/developer/1813775798) |

## What reviewers say

### TunnelWorm

[App page](https://appshunter.io/ios/app/tunnelworm/id1294101736)

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.

**Highlights:** Obstacle avoidance, Increasing speed and difficulty, High score tracking, Simple controls, Addictive gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Guess Size

[App page](https://appshunter.io/ios/app/guess-size-scale-game/id6814151950)

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

**In-app purchases:** none


## Frequently asked questions

### Is TunnelWorm free?

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

### Is Guess Size free?

Guess Size is free to download, with no in-app purchases.

### Do TunnelWorm or Guess Size have ads?

Neither TunnelWorm nor Guess Size shows ads.

### Which is updated more often, TunnelWorm or Guess Size?

TunnelWorm ships an update every 4 months, and Guess Size every 3 days. Most recently, TunnelWorm was updated on October 29, 2026 and Guess Size on October 24, 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.*