# iO vs Spinner.io

The clearest difference is rating: Spinner.io at 4.7 against iO's 3.7. Spinner.io also leads on ratings volume (227K vs 19). iO's advantage is ads (none vs shown) and review sentiment (71% vs 49%). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. iO sells 1 one-off in-app purchase and Spinner.io sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Spinner.io holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Spinner.io has 227K ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 71% of iO's written reviews are positive against 49% of Spinner.io's, so the app with the better star average is not the one people write more warmly about.

iO ships an update every 6 weeks, Spinner.io every 3 weeks. The most recent releases landed on November 1, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | iO | Spinner.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (19 ratings)](https://appshunter.io/ios/app/io-a-physics-platformer/id960831187/reviews) | **[4.7 (227K ratings)](https://appshunter.io/ios/app/spinnerio/id1423504857/reviews)** |
| Number of ratings | 19 | **227K** |
| Positive reviews | **71.1% of reviews** | 49.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 466 MB | 264 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Gamious B.V.](https://appshunter.io/developer/539181337) | [AI Games FZ](https://appshunter.io/developer/1478916023) |

## What reviewers say

### iO

[App page](https://appshunter.io/ios/app/io-a-physics-platformer/id960831187)

A physics-based platformer where you manipulate size, speed, and momentum to solve over 225 challenging mazes. Features unique gameplay mechanics like portals and inverted gravity, with global leaderboards for competitive play.

**Highlights:** Size, weight, and mass manipulation, Over 225 challenging mazes, Portals and inverted gravity, Global leaderboards, Unlockable achievements, Intuitive touch controls

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all advertisements | $0.99 | one-time |

**What reviewers like**

- 👍 Fun and addictive gameplay
- 💡 Challenging puzzles
- 🧠 Good for brain exercise
- ✨ Great design and idea
- 💯 Addictive and engaging

**What reviewers complain about**

- ❌ Unplayable due to ads
- 💸 Paid for ad-free, still shows ads
- 🐛 Game crashes frequently
- 🐞 Buttons cut off on mobile
- 🔇 No audio or sound effects

**Reported bugs**

- Ads not unlocking levels
- Paid ad-free, but ads persist
- Game crashes on startup or during gameplay
- Buttons cut off at screen edges
- Player phasing through walls

**Requested features**

- Fix ad-blocking payment issue
- Improve mobile formatting
- Add audio and sound effects
- Fix ad-related progression blockers
- Address crashing issues


### Spinner.io

[App page](https://appshunter.io/ios/app/spinnerio/id1423504857)

Engage in thrilling arena battles controlling a growing spinner. Grow your spinner by winning battles and strategically outmaneuvering opponents. Dominate the arena and become the ultimate champion in this fast-paced multiplayer game.

**Highlights:** Spinner arena battles, Grow spinner size and strength, Strategic combat and dodging, Multiplayer battle royale, Spinner customization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $4.99 | per 7 days |
| No Ads | $3.99 | one-time |

**What reviewers like**

- 🚀 Fun and addictive gameplay
- 👍 Simple and easy to learn controls
- 💡 Beyblade-inspired concept

**What reviewers complain about**

- 🔍 Lack of real multiplayer, mostly against bots
- 💰 Aggressive monetization with frequent ads
- 🔒 Misleading about being an online game

**Reported bugs**

- Game freezes and crashes
- Controls can be unresponsive at times

**Requested features**

- Online multiplayer mode
- More customization options for spinners
- New arena maps and game modes


## Frequently asked questions

### Is iO free?

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

### Is Spinner.io free?

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

### Which has better reviews, iO or Spinner.io?

Spinner.io is rated higher. iO averages 3.7 out of 5 from 19 ratings, while Spinner.io averages 4.7 from 227K ratings.

### Do iO or Spinner.io have ads?

Spinner.io shows ads; iO does not.

### Which is updated more often, iO or Spinner.io?

iO ships an update every 6 weeks, and Spinner.io every 3 weeks. Most recently, iO was updated on November 1, 2026 and Spinner.io on November 10, 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.*