# Smooth.io vs Tentacles Attack

The clearest difference is review sentiment: Smooth.io at 67% against Tentacles Attack's 3%. Smooth.io also leads on rating (4.3 vs 2.0) and ratings volume (245 vs 39). Tentacles Attack's advantage is in-app purchases (none vs 10). On price, update cadence, ads and device support there is nothing between them.

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

Smooth.io holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: Smooth.io has 245 ratings behind it against 39, so its average is the more settled of the two. Written reviews point the same way: 67% of Smooth.io's written reviews are positive against 3% of Tentacles Attack's.

Smooth.io ships an update weekly, Tentacles Attack every 10 days. The most recent releases landed on July 6, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | Smooth.io | Tentacles Attack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (245 ratings)](https://appshunter.io/ios/app/smoothio/id1632253854/reviews)** | [2.0 (39 ratings)](https://appshunter.io/ios/app/tentacles-attack/id1645286023/reviews) |
| Number of ratings | **245** | 39 |
| Positive reviews | **66.7% of reviews** | 3.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 215 MB | 277 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Kim Chinh Nguyen Thi](https://appshunter.io/developer/1632253856) | [Yso Corp](https://appshunter.io/developer/659815325) |

## What reviewers say

### 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 |


### Tentacles Attack

[App page](https://appshunter.io/ios/app/tentacles-attack/id1645286023)

Control a creature with tentacles to grab enemies and grow larger. Conquer the entire city by expanding your reach and overwhelming your opponents.

**Highlights:** Tentacle grabbing mechanics, Grow in size, City takeover gameplay, Enemy conquest

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smooth.io free?

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

### Is Tentacles Attack free?

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

### Which has better reviews, Smooth.io or Tentacles Attack?

Smooth.io is rated higher. Smooth.io averages 4.3 out of 5 from 245 ratings, while Tentacles Attack averages 2.0 from 39 ratings.

### Do Smooth.io or Tentacles Attack have ads?

Both Smooth.io and Tentacles Attack show ads.

### Which is updated more often, Smooth.io or Tentacles Attack?

Smooth.io ships an update weekly, and Tentacles Attack every 10 days. Most recently, Smooth.io was updated on July 6, 2026 and Tentacles Attack on September 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.*