Comparison

Agar.io vs slither.io

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Agar.io

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
Currently charting
Read full description

The browser game phenomenon comes to iOS! Play online with players around the world as you try to become the biggest cell of them all! Control your tiny cell and eat other players to grow larger! But watch out: players bigger than you will be trying to make you their lunch. Survive and eat long enough to become the biggest cell in the game! With new controls developed especially for touchscreens, agar.io offers the same fun gameplay that millions have already enjoyed on PC. Play online in free-for-all action and use splitting, shrinking and dodging tactics to catch other players - or avoid them! Use a variety of special secret skins with the right username! This game includes optional in-game purchases (includes random items). VIP Subscriptions - Agar.io offers weekly subscriptions at USD $7,99. Price may vary depending on sales, taxes and countries. - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Your account will be charged for renewal within 24-hours prior to the end of the current period - Subscriptions may be managed by going to the Account Settings after purchase and auto-renewal may be turned off - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Terms and Conditions: https://m.miniclip.com/terms-and-conditions Privacy Policy: https://m.miniclip.com/privacy

About

slither.io

Compete against other players in a multiplayer game where you grow by consuming the remains of defeated opponents. Outmaneuver larger players to win and become the longest slither.

Highlights
  • Online multiplayer gameplay
  • Grow by consuming player remains
  • Outmaneuver opponents
  • Become the longest slither
  • Simple controls
Features
Read full description

Play against other people online! Can you become the longest slither of the day? In slither.io, even if you're tiny, you have a chance to win. If you're skilled or lucky, you can swerve in front of a much larger player to defeat them! Boop or be booped! If your head touches another player, you will explode and die. But if other players run into YOU, then THEY will explode and you can eat their remains! slither.io is the real online multiplayer slithering game! Are you a snake or a worm? You're a slither! Download now and start slithering!

Screenshots

Agar.io4 screens
slither.io4 screens

Verdict

The call

The clearest difference is rating: Agar.io at 4.5 against slither.io's 3.8. Agar.io also leads on ratings volume (221K vs 3.3K). slither.io's advantage is ads (none vs shown) and review sentiment (55% vs 28%). On price, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Agar.io sells 10 in-app purchases, starting at $7.99 per 7 days and slither.io sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Agar.io holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Agar.io has 221K ratings behind it against 3.3K, so its average is the more settled of the two. Written reviews complicate that: 28% of Agar.io's written reviews are positive against 55% of slither.io's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Agar.io ships an update every 4 weeks, slither.io weekly. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 5 level
Agar.io versus slither.io: the parameters behind the verdict, then further details
ParameterAgar.ioslither.io
PriceFreeFree
Rating4.5 (221K ratings) — better3.8 (3.3K ratings)
Positive reviews27.8% of reviews55.1% of reviews — better
Number of ratings221K — better3.3K
Update frequencyEvery 4 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#200#45 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size138 MB75 MB
Age rating9+4+
DeveloperMiniclip.comLowtech Studios LLC

Customer experience

Agar.io

All ratings220,648 ratings
Positive87.2%
Neutral4.1%
Negative8.7%
Written reviews1,483 reviews
Positive27.8%
Neutral9.9%
Negative62.2%

slither.io

All ratings3,030 ratings
Positive66.9%
Neutral6.6%
Negative26.6%
Written reviews1,897 reviews
Positive55.1%
Neutral11.0%
Negative33.9%

User reviews

Agar.io

From 221K App Store ratings

What we love

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

Room to improve

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

slither.io

From 3.3K App Store ratings

What we love

  • 🚀 Addictive gameplay
  • 👍 Customizable snake skins
  • 🚀 Offline mode available
  • 👍 No ads (if paid)

Room to improve

  • 🐛 Frequent lags and freezes
  • 🐛 Glitches causing unfair deaths
  • 🐛 Inability to control snake movements
  • 🐛 Inappropriate player names
  • 💰 Ads and in-app purchases

Bugs and requests

Agar.io

Reported bugs

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

Requested features

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

slither.io

Reported bugs

4 issues
  • Screen freezing during gameplay
  • Inability to change skins
  • Forced speed boosts causing crashes
  • Inconsistent performance across devices

Requested features

6 requests
  • Ability to play with friends
  • More customization options
  • Pause button for offline mode
  • Endless game board
  • Improved AI difficulty
Show 1 more
  • Prevent other players from stealing kills

In-app purchases

10 purchases

Agar.io

Subscriptions1
  • Agar.io 7-days Subscription3 Days trial$7.997 Days
One-time9
  • Stack of DNA$1.99
  • Special Pack$1.99
  • Starter Pack$3.99
Show 6 more
  • Special Skin Deal$3.99
  • Pile of Coins$4.99
  • Stash of Coins - Special Pack$4.99
  • Special Pack$4.99
  • Wallet of Coins$9.99
  • Wallet of Coins - Promo$9.99
1 purchases

slither.io

One-time1
  • Remove Ads$3.99

Questions

Is Agar.io free?
Agar.io is free to download, with in-app purchases available.
Is slither.io free?
slither.io is free to download, with in-app purchases available.
Which has better reviews, Agar.io or slither.io?
Agar.io is rated higher. Agar.io averages 4.5 out of 5 from 221K ratings, while slither.io averages 3.8 from 3.3K ratings.
Do Agar.io or slither.io have ads?
Agar.io shows ads; slither.io does not.
Which is updated more often, Agar.io or slither.io?
Agar.io ships an update every 4 weeks, and slither.io weekly. Most recently, Agar.io was updated on November 7, 2026 and slither.io on November 6, 2026.
Which is more popular, Agar.io or slither.io?
Agar.io currently peaks at #200 in the App Store charts, and slither.io at #45. Chart position reflects recent download velocity rather than total install base.

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