Comparison

Cow Evolution vs Monster Evolution Run

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

Monster Evolution Run

Grow your monster by eating food and evolving its DNA. Battle other evolved monsters and powerful bosses to become the strongest Kaiju.

Highlights
  • Monster evolution
  • DNA merging
  • Food consumption
  • Boss battles
  • Kaiju combat
Features
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Get to the top of the chain in evolution and become the strongest Kaiju and take down other evolved monsters. Eat different food and evolve your DNA into many different Kaijus and Monsters and take down the boss monsters.

Screenshots

Cow Evolution4 screens
Monster Evolution Run4 screens

Verdict

The call

The clearest difference is review sentiment: Cow Evolution at 80% against Monster Evolution Run's 25%. Cow Evolution also leads on rating (4.7 vs 3.5) and update cadence (every 10 days vs every 6 months). Monster Evolution Run's advantage is in-app purchases (none vs 12). On price, ads, device support and iOS requirement 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 12 one-off in-app purchases. Monster Evolution Run asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Cow Evolution holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Cow Evolution has 23K ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 80% of Cow Evolution's written reviews are positive against 25% of Monster Evolution Run's.

UpkeepUpdate frequency

Cow Evolution ships an update every 10 days, Monster Evolution Run every 6 months. The most recent releases landed on September 30, 2026 and July 5, 2026 respectively.

Scorecard6 real differences · 4 level
Cow Evolution versus Monster Evolution Run: the parameters behind the verdict, then further details
ParameterCow EvolutionMonster Evolution Run
PriceFreeFree
Rating4.7 (23K ratings) — better3.5 (21 ratings)
Positive reviews79.9% of reviews — better25.0% of reviews
Number of ratings23K — better21
Update frequencyEvery 10 days — betterEvery 6 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size153 MB299 MB
Age rating9+9+
DeveloperTPG TECNOLOGIA DA INFORMACAO LTDAYso Corp

Customer experience

Cow Evolution

All ratings23,282 ratings
Positive94.1%
Neutral3.1%
Negative2.9%
Written reviews1,868 reviews
Positive79.9%
Neutral5.8%
Negative14.3%

Monster Evolution Run

All ratings21 ratings
Positive61.9%
Neutral9.5%
Negative28.6%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

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

Monster Evolution Run

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Cow Evolution

One-time12
  • ads removal$0.99
  • pack with 60 diamonds$1.99
  • instant coins doubler$1.99
Show 9 more
  • pack of diamonds$1.99
  • pack of rubies$1.99
  • small frost gem pack$1.99
  • Promo Bundles Very High$2.99
  • pack with 200 diamonds$3.99
  • big pack of rubies$4.99
  • income doubler$5.99
  • pack with 500 diamonds$6.99
  • Trinket$6.99
None

Monster Evolution Run

No in-app purchases

Questions

Is Cow Evolution free?
Cow Evolution is free to download, with in-app purchases available.
Is Monster Evolution Run free?
Monster Evolution Run is free to download, with no in-app purchases.
Which has better reviews, Cow Evolution or Monster Evolution Run?
Cow Evolution is rated higher. Cow Evolution averages 4.7 out of 5 from 23K ratings, while Monster Evolution Run averages 3.5 from 21 ratings.
Do Cow Evolution or Monster Evolution Run have ads?
Both Cow Evolution and Monster Evolution Run show ads.
Which is updated more often, Cow Evolution or Monster Evolution Run?
Cow Evolution ships an update every 10 days, and Monster Evolution Run every 6 months. Most recently, Cow Evolution was updated on September 30, 2026 and Monster Evolution Run on July 5, 2026.

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