# Agar.io vs Senpa.io

The clearest difference is rating: Agar.io at 4.5 against Senpa.io's 3.9. Agar.io also leads on update cadence (every 4 weeks vs every 9 months) and ratings volume (221K vs 171). Senpa.io's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Agar.io sells 10 in-app purchases, starting at $7.99 per 7 days. Senpa.io asks for nothing beyond the download.

Agar.io holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Agar.io has 221K ratings behind it against 171, so its average is the more settled of the two. Written reviews complicate that: 28% of Agar.io's written reviews are positive against 58% of Senpa.io's, so the app with the better star average is not the one people write more warmly about.

Agar.io ships an update every 4 weeks, Senpa.io every 9 months. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Agar.io | Senpa.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (221K ratings)](https://appshunter.io/ios/app/agario/id995999703/reviews)** | [3.9 (171 ratings)](https://appshunter.io/ios/app/senpaio/id1423806009/reviews) |
| Number of ratings | **221K** | 171 |
| Positive reviews | 28.1% of reviews | **58.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Every 9 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#190** | — |
| Size | 138 MB | 13 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Miniclip.com](https://appshunter.io/developer/337457683) | [VexxusArts Ltd](https://appshunter.io/developer/1080798117) |

## What reviewers say

### Agar.io

[App page](https://appshunter.io/ios/app/agario/id995999703)

**Currently charting:** #190 Top Free · Strategy (US App Store)

Grow your cell by consuming smaller cells and avoiding larger ones in this online multiplayer game. Master tactics like splitting and dodging to become the biggest cell. Unlock secret skins with special usernames.

**Highlights:** Online multiplayer gameplay, Grow by eating other players, Avoid larger cells, Splitting and dodging tactics, Special secret skins, Touchscreen controls

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Agar.io 7-days Subscription | $7.99 | per 7 days |
| Stack of DNA | $1.99 | one-time |
| Special Pack | $1.99 | one-time |
| Starter Pack | $3.99 | one-time |
| Special Skin Deal | $3.99 | one-time |
| Pile of Coins | $4.99 | one-time |
| Stash of Coins - Special Pack | $4.99 | one-time |
| Special Pack | $4.99 | one-time |
| Wallet of Coins | $9.99 | one-time |
| Wallet of Coins - Promo | $9.99 | one-time |

**What reviewers like**

- 🚀 Addictive gameplay
- 🔥 Iconic game
- 💎 Great rewards system
- 🎨 Customizable skins

**What reviewers complain about**

- 🔍 Difficulty for new players
- 🕰️ Slow progression
- 💰 Excessive ads and microtransactions
- 🔒 Lack of account portability
- 🐛 Frequent crashes and lag

**Reported bugs**

- Inconsistent potion rewards
- Freezing and crashing issues
- Delayed controls and server transfers
- Invisible skins and exploits

**Requested features**

- Private/custom servers
- Ability to delete unwanted potions
- Improved matchmaking and skill-based lobbies
- More game modes and content updates


### Senpa.io

[App page](https://appshunter.io/ios/app/senpaio/id1423806009)

Control a tiny cell and eat other players to grow larger in this online multiplayer game. Survive and strategize using splitting, shrinking, and dodging tactics to become the biggest cell. Discover secret skins with special usernames.

**Highlights:** Online multiplayer gameplay, Eat smaller cells to grow, Splitting and shrinking tactics, Dodging mechanics, Special secret skins, Touchscreen controls

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎮 Engaging and addictive gameplay
- 😊 Fun and enjoyable experience
- 🚀 Smooth performance when working properly
- 🎯 Good game mechanics similar to Agar.io

**What reviewers complain about**

- 🤖 Overpowered bots with unrealistic AI
- 🐌 Severe lag and freezing issues
- 🔌 Frequent loading and connection problems
- 📱 UI/button sizing and positioning issues
- 🎨 Skin system broken and non-functional

**Reported bugs**

- Bots spawn with skins while players cannot use them
- Skin upload system shows 'pending' then disappears
- Custom skin creation disabled
- Game won't load or freezes on startup
- Login fails with 'no internet connection' error

**Requested features**

- Multiple macro speed options and settings
- Customizable button positioning and sizing
- Tap-to-move control option
- Private/custom servers for skill practice
- Chat system and friend list functionality


## Frequently asked questions

### Is Agar.io free?

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

### Is Senpa.io free?

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

### Which has better reviews, Agar.io or Senpa.io?

Agar.io is rated higher. Agar.io averages 4.5 out of 5 from 221K ratings, while Senpa.io averages 3.9 from 171 ratings.

### Do Agar.io or Senpa.io have ads?

Agar.io shows ads; Senpa.io does not.

### Which is updated more often, Agar.io or Senpa.io?

Agar.io ships an update every 4 weeks, and Senpa.io every 9 months. Most recently, Agar.io was updated on October 31, 2026 and Senpa.io on October 26, 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.*