# Agar.io vs Stack Rush

The clearest difference is rating: Agar.io at 4.5 against Stack Rush's 3.7. Agar.io also leads on ratings volume (221K vs 3) and chart position (#178 vs unranked). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Agar.io sells 10 in-app purchases, starting at $7.99 per 7 days and Stack Rush sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Agar.io holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Agar.io has 221K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 28% of Agar.io's written reviews are positive against 33% of Stack Rush'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, Stack Rush fortnightly. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Agar.io | Stack Rush |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (221K ratings)](https://appshunter.io/ios/app/agario/id995999703/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/stack-rush-endless-arcade/id6476542998/reviews) |
| Number of ratings | **221K** | 3 |
| Positive reviews | 28.2% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#178** | — |
| Size | 138 MB | 187 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Miniclip SA](https://appshunter.io/developer/337457683) | [Zugzug](https://appshunter.io/developer/1726306420) |

## What reviewers say

### Agar.io

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

**Currently charting:** #178 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


### Stack Rush

[App page](https://appshunter.io/ios/app/stack-rush-endless-arcade/id6476542998)

Tap to drop a ball and hit moving blocks to build a tower. Master timing for bonuses, unlock upgrades with earned coins, and complete missions. Compete with friends or on global leaderboards.

**Highlights:** Tap to stack blocks, Easy to learn, hard to master gameplay, Unlock and upgrade customizations, Complete challenging missions, Online multiplayer and leaderboards, Offline play support

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coins Tier 1 | $0.99 | one-time |
| Spins Tier 1 | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Spins Tier 2 | $2.99 | one-time |
| Coins Tier 2 | $3.49 | one-time |
| Spins Tier 3 | $3.99 | one-time |
| Coins Tier 3 | $4.99 | one-time |


## Frequently asked questions

### Is Agar.io free?

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

### Is Stack Rush free?

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

### Which has better reviews, Agar.io or Stack Rush?

Agar.io is rated higher. Agar.io averages 4.5 out of 5 from 221K ratings, while Stack Rush averages 3.7 from 3 ratings.

### Do Agar.io or Stack Rush have ads?

Both Agar.io and Stack Rush show ads.

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

Agar.io ships an update every 4 weeks, and Stack Rush fortnightly. Most recently, Agar.io was updated on October 14, 2026 and Stack Rush on October 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.*