Comparison

Cow Evolution vs Scream Sheep

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

Head to head
About

Cow Evolution

Merge cows to discover new mutant creatures and build a unique farm. Collect resources, upgrade equipment, and customize your animals with various accessories. Explore different worlds and unlock mysterious species in this idle clicker game.

Highlights
  • Merge cows to discover mutant creatures
  • Collect coins and crystals
  • Upgrade farm equipment
  • Customize animals with accessories
  • Discover new worlds and species
  • Idle clicker gameplay
Features
Read full description

Become the biggest animal farmer in Cow Evolution! Merge cows and discover amazing new mutant creatures. Collect coins and crystals, upgrade your equipment and become an animal farm tycoon. Play Cow Evolution for FREE* now and discover all the mysterious species! Everything on the farm was just cows when mutations and evolutions started to create amazing creatures! Merge the animals and build a farm with a variety of mutated monsters. You can also customize your animals with various items such as hats, clothes, and accessories, and discover other worlds with mysterious creature species. IDLE CLICKER GAME Tap and collect resources to evolve your cow farm. There are hundreds of items for you to collect, with discoveries that can lead you to discover more mutant cow species and ensure your progress through the game. Level up your farm, customize your cows with hats, clothes, and accessories, and share the creatures you've discovered with your friends. MERGE COW SPECIES There are three main stages in this animal evolution simulator: monster cows, alpaca cows, and alien cows. Test different combinations between these three stages and expand the number of mutant creatures on your farm. The more discoveries you make, the more cows and items you earn to increase your catalog of discovered species and expand the monsters on your farm. ANIMAL MUTANT FARM Put on your farmer outfit and start taking care of your mutant cows. Complete the main quests of the idle clicker game and earn items to customize your animals. There are many options of hats, hair, clothes, and accessories to make your farm much more fun. Remember to play every day to collect more coins and crystals, and share your farm with your friends. *Cow Evolution is a free idle merge clicker game. However, it has additional features and extra items that can be purchased in the in-game store.

About

Scream Sheep

Control a sheep using your voice to navigate obstacles. A small voice makes it walk, a larger one makes it jump, and a shout makes it jump higher. Experience a unique gameplay mechanic designed for fun and excitement.

Highlights
  • Voice-controlled gameplay
  • Jump and avoid obstacles
  • Adjust jump height with voice volume
  • Unique interactive experience
  • Simple and intuitive controls
Features
Read full description

You are familiar with traditional games where you control the character with the interface on the screen. This game will change the way you play, you need to control the sheep with your voice. A small voice will make the sheep walk, a bigger voice will make it jump (to avoid obstacles). You can even shout loudly to make the sheep jump higher. Wish you have fun and exciting moments with this screaming sheep.

Screenshots

Cow Evolution4 screens
Scream Sheep4 screens

Verdict

The call

The clearest difference is ratings volume: Cow Evolution at 24K against Scream Sheep's 2. Scream Sheep's advantage is review sentiment (100% vs 79%) and rating (5.0 vs 4.7). On price, update cadence, ads and in-app purchases 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. Cow Evolution sells 10 one-off in-app purchases and Scream Sheep 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

Scream Sheep holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Cow Evolution has 24K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 79% of Cow Evolution's written reviews are positive against 100% of Scream Sheep's.

UpkeepUpdate frequency

Cow Evolution ships an update every 2 weeks, Scream Sheep every 3 weeks. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Cow Evolution versus Scream Sheep: the parameters behind the verdict, then further details
ParameterCow EvolutionScream Sheep
PriceFreeFree
Rating4.7 (24K ratings)5.0 (2 ratings) — better
Positive reviews79.3% of reviews100.0% of reviews — better
Number of ratings24K — better2
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size156 MB88 MB
Age rating9+4+
DeveloperTPG TECNOLOGIA DA INFORMACAO LTDAPhan Minh Cuong

Customer experience

Cow Evolution

All ratings23,842 ratings
Positive94.0%
Neutral3.1%
Negative3.0%
Written reviews1,889 reviews
Positive79.3%
Neutral5.9%
Negative14.8%

Scream Sheep

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Cow Evolution

Reported bugs

2 issues
  • Achievements not tracking correctly
  • Upgrade buttons disappearing or becoming unresponsive

Requested features

4 requests
  • Ability to create custom cows
  • More diverse cow evolution paths
  • Improved ad monetization model
  • Faster crate opening times

Scream Sheep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Cow Evolution

One-time10
  • ads removal$0.99
  • pack with 60 diamonds$1.99
  • instant coins doubler$1.99
Show 7 more
  • pack of diamonds$1.99
  • pack of rubies$1.99
  • small frost gem pack$1.99
  • pack with 200 diamonds$3.99
  • income doubler$5.99
  • pack with 500 diamonds$6.99
  • Trinket$6.99
1 purchases

Scream Sheep

One-time1
  • Remove Ads$2.99

Questions

Is Cow Evolution free?
Cow Evolution is free to download, with in-app purchases available.
Is Scream Sheep free?
Scream Sheep is free to download, with in-app purchases available.
Which has better reviews, Cow Evolution or Scream Sheep?
Scream Sheep is rated higher. Cow Evolution averages 4.7 out of 5 from 24K ratings, while Scream Sheep averages 5.0 from 2 ratings.
Do Cow Evolution or Scream Sheep have ads?
Both Cow Evolution and Scream Sheep show ads.
Which is updated more often, Cow Evolution or Scream Sheep?
Cow Evolution ships an update every 2 weeks, and Scream Sheep every 3 weeks. Most recently, Cow Evolution was updated on November 10, 2026 and Scream Sheep on November 5, 2026.

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