# Mech Boa vs Smooth.io

The clearest difference is rating: Smooth.io at 4.4 against Mech Boa's 3.7. Smooth.io also leads on review sentiment (67% vs 26%). Mech Boa's advantage is in-app purchases (none vs 10). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Smooth.io sells 10 one-off in-app purchases. Mech Boa asks for nothing beyond the download.

Smooth.io holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 149 and 253 respectively. Written reviews point the same way: 26% of Mech Boa's written reviews are positive against 67% of Smooth.io's.

Mech Boa ships an update every 5 days, Smooth.io weekly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Mech Boa | Smooth.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (149 ratings)](https://appshunter.io/ios/app/mech-boa/id1545138884/reviews) | **[4.4 (253 ratings)](https://appshunter.io/ios/app/smoothio/id1632253854/reviews)** |
| Number of ratings | 149 | **253** |
| Positive reviews | 26.1% of reviews | **66.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 214 MB | 215 MB |
| Requires iOS | 12.5 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Yso Corp](https://appshunter.io/developer/659815325) | [Kim Chinh Nguyen Thi](https://appshunter.io/developer/1632253856) |

## What reviewers say

### Mech Boa

[App page](https://appshunter.io/ios/app/mech-boa/id1545138884)

Control a giant mechanical snake monster and unleash destruction on towns. Experience hyper-casual gameplay as you rampage through cities, demolishing everything in your path.

**Highlights:** Control a giant mechanical snake, Destroy towns, Hyper-casual gameplay, Rampage through cities

**In-app purchases:** none


### Smooth.io

[App page](https://appshunter.io/ios/app/smoothio/id1632253854)

Engage in a fun, competitive snake game with upgraded io gameplay and vibrant graphics. Choose between offline Infinity mode or battle other players in Survival mode to become the last survivor and climb the leaderboards.

**Highlights:** Competitive snake gameplay, Multiple game modes (Infinity, Survival, Festival), Vivid graphics and worm skins, Adaptive mobile controls (joystick, arrow, follow), Offline play available, Multiplayer leaderboards

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Limited Pack | $0.99 | one-time |
| Skin 21 | $0.99 | one-time |
| Skin 22 | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Skin 24 | $1.99 | one-time |
| Skin 23 | $1.99 | one-time |
| Skin 40 | $2.99 | one-time |
| Skin 39 | $2.99 | one-time |
| Skin 42 | $2.99 | one-time |
| Epic pack | $4.99 | one-time |


## Frequently asked questions

### Is Mech Boa free?

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

### Is Smooth.io free?

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

### Which has better reviews, Mech Boa or Smooth.io?

Smooth.io is rated higher. Mech Boa averages 3.7 out of 5 from 149 ratings, while Smooth.io averages 4.4 from 253 ratings.

### Do Mech Boa or Smooth.io have ads?

Both Mech Boa and Smooth.io show ads.

### Which is updated more often, Mech Boa or Smooth.io?

Mech Boa ships an update every 5 days, and Smooth.io weekly. Most recently, Mech Boa was updated on November 3, 2026 and Smooth.io on November 3, 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.*