Comparison

Worm Run! vs Cosmo Snake

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

Head to head
About

Worm Run!

Control a growing worm, expanding to move forward and retracting to avoid obstacles. The longer you expand, the faster you retract. Compete on global leaderboards in this addictive arcade challenge.

Highlights
  • Expand and retract worm
  • Avoid obstacles
  • Fast-paced gameplay
  • Global leaderboards
  • Simple controls
Features
Read full description

***** Play now the crazy addictive worm game! ***** Slither the worm carefully through each obstacle. Don’t forget to retract before obstacle hits you. The longer you expand, the faster you retract. HOW TO PLAY WORM RUN!? - Hold to expand, release to retract. - Avoid getting hit. You die by getting hit by the obstacle, be careful! Play now Worm Run! and compete with others on global leaderboards.

About

Cosmo Snake

Control a worm in a cosmic arena, devouring orbs and fallen foes to grow larger. Outmaneuver opponents with magic tools and strategic play to become the biggest worm. Customize your worm with unique skins for endless fun.

Highlights
  • Classic worm gameplay with magic tools
  • Cosmic battles against other players
  • Grow your worm by eating orbs
  • Unique monster skins for customization
  • Endless replayability
Features
Read full description

Slither into the cosmic arena of Snake Cosmos! Control your worm and conquer the universe in this addictive io game. Grow your gusano by devouring glowing orbs and the remains of fallen foes. Outmaneuver other players, using cunning strategy and magic tools to become the biggest worm in the cosmos. Will you slither to victory or become another worm's feast? Features: * Classic Worm Gameplay with a Twist: Experience the thrill of classic worm games with added magic tools and a vast universe to explore. * Magic Tools for Survival: Utilize special abilities to escape tight spots, boost your speed, or even change your size to gain an advantage. * Cosmic Battles: Fight other worms in an epic struggle for dominance. Can you outsmart and outmaneuver your opponents? * Grow and Conquer: Eat to grow longer and more powerful. The bigger your worm, the greater your advantage! * Monster Skins: Customize your worm with unique monster skins to stand out from the cosmic crowd. * Endless Fun: Snakers.io - Gusano Juegos.io offers endless replayability. Slither back in for a new challenge every time! Download Snakers.io - Gusano Juegos.io and become the ultimate worm champion of the universe! For more details, please review our Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Worm Run!4 screens
Cosmo Snake3 screens

Verdict

The call

The clearest difference is ads: Worm Run! at none against Cosmo Snake's shown. Worm Run! also leads on ratings volume (1.1K vs 24) and iOS requirement (10.0 vs 15.0). Cosmo Snake's advantage is update cadence (weekly vs every 4 months) and review sentiment (100% vs 72%). On price, rating, in-app purchases and monetization model 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. Worm Run! sells 4 one-off in-app purchases and Cosmo Snake sells 10 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cosmo Snake holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Worm Run! has 1.1K ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 72% of Worm Run!'s written reviews are positive against 100% of Cosmo Snake's.

UpkeepUpdate frequency

Worm Run! ships an update every 4 months, Cosmo Snake weekly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Worm Run! versus Cosmo Snake: the parameters behind the verdict, then further details
ParameterWorm Run!Cosmo Snake
PriceFreeFree
Rating4.4 (1.1K ratings)4.6 (24 ratings) — better
Positive reviews72.3% of reviews100.0% of reviews — better
Number of ratings1.1K — better24
Update frequencyEvery 4 monthsWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size111 MB316 MB
Age rating4+4+
DeveloperGamma Play LimitedChainJoy Limited

Customer experience

Worm Run!

All ratings1,102 ratings
Positive85.0%
Neutral5.6%
Negative9.3%
Written reviews47 reviews
Positive72.3%
Neutral2.1%
Negative25.5%

Cosmo Snake

All ratings25 ratings
Positive96.0%
Neutral4.0%
Negative0.0%
Written reviews13 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Worm Run!

Reported bugs

3 issues
  • Crashes on older devices
  • Freezing issues
  • Scoring problems

Requested features

3 requests
  • More levels and challenges
  • Difficulty settings
  • Better tutorial or training mode

Cosmo Snake

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Worm Run!

One-time4
  • 250 Credits$0.99
  • No Ads$1.99
  • 500 Credits$1.99
Show 1 more
  • 1000 Credits$2.99
10 purchases

Cosmo Snake

Subscriptions1
  • Vip Pass$1.991 Month
One-time9
  • Starter Pack$0.99
  • BigEye Skin$0.99
  • Jelly Skin$0.99
Show 6 more
  • SpaceShip Skin$0.99
  • MaigcTool-Enlarge$0.99
  • MaigcTool-Magnet$0.99
  • MaigcTool-Shield$0.99
  • ADsRemover$1.99
  • Diamond Pack 4$5.99

Questions

Is Worm Run! free?
Worm Run! is free to download, with in-app purchases available.
Is Cosmo Snake free?
Cosmo Snake is free to download, with in-app purchases available.
Which has better reviews, Worm Run! or Cosmo Snake?
Cosmo Snake is rated higher. Worm Run! averages 4.4 out of 5 from 1.1K ratings, while Cosmo Snake averages 4.6 from 24 ratings.
Do Worm Run! or Cosmo Snake have ads?
Cosmo Snake shows ads; Worm Run! does not.
Which is updated more often, Worm Run! or Cosmo Snake?
Worm Run! ships an update every 4 months, and Cosmo Snake weekly. Most recently, Worm Run! was updated on November 2, 2026 and Cosmo Snake on October 30, 2026.

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