Comparison

Cow Evolution vs Birds Evolution Merge

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

Birds Evolution Merge

Combine various bird species to evolve them into new, bizarre forms. Explore different stages, unlock curious creatures, and discover unexpected endings in this evolutionary merge game. Earn coins through bird poop to buy more creatures and accelerate your progress.

Highlights
  • Combine similar birds to create new creatures
  • Evolve birds to discover exotic forms
  • Use bird poop coins to buy new creatures
  • Discover different stages and bird species
  • Unlock various possible endings
  • Incremental clicker gameplay
Features
Read full description

A little bird told me that you should definitely play this. Well, not actually. But it’s fun, trust us. Combine different and awesome kinds of birds and go beyond your imagination mixing up these animals. The sky is the limit! From the creators of the renowned Evolution games, comes the sequel that takes the series to incredible new heights! Combine birds to evolve them and discover their most curious, exotic and bizarre forms! FEATURING • Pantheon: a place for supreme beings to look down on us mortals and laugh at our misery • Impostors: watch out for impostors trying to steal the spotlight from the birds HOW TO PLAY • Drag and drop similar birds to create new mysterious creatures • Use bird poop coins to buy new creatures and make even more money • Alternatively, fiercely tap a bird to make coins pop when birds poop HIGHLIGHTS • Different stages and many bird species to discover • A mind-blowing story yet untold • The unexpected mix of alpaca-like evolution, 2048 and incremental clicker games • Doodle-like illustrations • Various possible endings: find your destiny • No birds were harmed in the making of this game, only developers Don’t settle for lousy games. Download Birds Evolution and reach for the sky! You know the saying: “the early bird catches the worm”! Disclaimer: While this App is completely free to play, some additional content can be purchased for real money in-game. If you do not want to use this feature, please turn off in-app purchases in your device's settings. Like our page on Facebook and be the first to know about our upcoming games and updates! http://fb.com/tappshq

Screenshots

Cow Evolution4 screens
Birds Evolution Merge4 screens

Verdict

The call

The clearest difference is update cadence: Cow Evolution at every 10 days against Birds Evolution Merge's every 5 weeks. Cow Evolution also leads on ratings volume (23K vs 851). On price, rating, review sentiment and ads 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 and Birds Evolution Merge sells 14 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Cow Evolution against 4.7 for Birds Evolution Merge. That said, the two scores are not equally well evidenced: Cow Evolution has 23K ratings behind it against 851, so its average is the more settled of the two. Written reviews are what separate them: 80% of Cow Evolution's written reviews are positive against 87% of Birds Evolution Merge's.

UpkeepUpdate frequency

Cow Evolution ships an update every 10 days, Birds Evolution Merge every 5 weeks. The most recent releases landed on September 24, 2026 and September 6, 2026 respectively.

Scorecard2 real differences · 8 level
Cow Evolution versus Birds Evolution Merge: the parameters behind the verdict, then further details
ParameterCow EvolutionBirds Evolution Merge
PriceFreeFree
Rating4.7 (23K ratings)4.7 (851 ratings)
Positive reviews79.8% of reviews87.4% of reviews — better
Number of ratings23K — better851
Update frequencyEvery 10 days — betterEvery 5 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size153 MB156 MB
Age rating9+9+
DeveloperTPG TECNOLOGIA DA INFORMACAO LTDATPG TECNOLOGIA DA INFORMACAO LTDA

Customer experience

Cow Evolution

All ratings23,282 ratings
Positive94.1%
Neutral3.1%
Negative2.9%
Written reviews1,866 reviews
Positive79.8%
Neutral5.8%
Negative14.4%

Birds Evolution Merge

All ratings851 ratings
Positive92.5%
Neutral4.9%
Negative2.6%
Written reviews174 reviews
Positive87.4%
Neutral5.2%
Negative7.5%

User reviews

Cow Evolution

From 23K App Store ratings

What we love

  • 👍 Fun and addictive gameplay
  • 🤩 Cute and creative cow designs
  • 💰 Rewarding progression system
  • 🎨 Enjoyable art style

Room to improve

  • 📺 Excessive advertisements
  • ⏱️ Lengthy wait times for crates
  • 🐛 Occasional game freezes and crashes
  • 🔍 Accessibility issues on newer devices

Birds Evolution Merge

From 851 App Store ratings

What we love

  • 💎 Addictive and fun gameplay
  • 🎨 Ability to customize birds
  • 🐦 Variety of bird species
  • 🎶 Enjoyable music

Room to improve

  • 🔍 Repetitive gameplay
  • 🛑 Excessive ads
  • 🐛 Bugs and crashes
  • 🔊 Music interruption issues

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

Birds Evolution Merge

Reported bugs

3 issues
  • Inability to change bird colors
  • Incorrect pricing in the store
  • Game crashing after updates

Requested features

3 requests
  • More bird species and evolution stages
  • Ability to listen to music while playing
  • Improved performance and stability

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
14 purchases

Birds Evolution Merge

One-time14
  • Remove Ads$1.99
  • Hard Currency Pack 1$1.99
  • pack with diamonds$1.99
Show 11 more
  • pack of rubies$1.99
  • instant coins doubler$1.99
  • Promo Bundles VeryHigh$2.99
  • Shop Bundle 1$2.99
  • Hard Currency Pack 2$4.99
  • big pack of rubies$5.99
  • income doubler$5.99
  • Shop Bundle 2$5.99
  • Trinket$6.99
  • Hard Currency Pack 3$9.99
  • starter bundle discount$9.99

Questions

Is Cow Evolution free?
Cow Evolution is free to download, with in-app purchases available.
Is Birds Evolution Merge free?
Birds Evolution Merge is free to download, with in-app purchases available.
Which has better reviews, Cow Evolution or Birds Evolution Merge?
Cow Evolution and Birds Evolution Merge are both rated 4.7 out of 5 on the App Store, from 23K and 851 ratings respectively.
Do Cow Evolution or Birds Evolution Merge have ads?
Both Cow Evolution and Birds Evolution Merge show ads.
Which is updated more often, Cow Evolution or Birds Evolution Merge?
Cow Evolution ships an update every 10 days, and Birds Evolution Merge every 5 weeks. Most recently, Cow Evolution was updated on September 24, 2026 and Birds Evolution Merge on September 6, 2026.

Other comparisons