Comparison

Idle evolution vs Alien Evolution

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

Head to head
About

Idle evolution

Explore the 4-billion-year history of life on Earth through an engaging idle game. Learn about ancient creatures and human culture while restoring biological forms and unlocking evolutionary mysteries. Experience a blend of casual gameplay and educational content.

Highlights
  • Casual idle gameplay
  • Popular science education
  • Biological restoration
  • Intellectual equipment technology
  • Unlock mysteries of life
  • Experience life evolution
Read full description

"Life on Earth" is not an ordinary idle game, but also a professional education game about life evolution. You can not only experience the easy and funny idle evolution games, but also learn the knowledge about mysterious ancient creatures and human culture. ---Story background--- Life has evolved for 4 billion years. Since the birth of human beings, only a million of years have passed. We can only occupy a few minutes on the timeline of life evolution. In the struggle against nature, these great prehistory creatures have stepped from the ocean to the land, from the low level to the high level, and on the Earth - our common home, they painted a colorful and shining historical picture! You are a scientist in the paleontology laboratory. With the help of your robot assistant, you can study the history of paleontology, draw a blueprint for life evolution, and unlock the mysteries of life. ●Casual idle game This is a casual idle game. You can enjoy the real joy of game with less time and efforts! ●Popular science education In Life On Earth, there are lots of professional knowledge of ancient creatures, you can learn new areas that you have never known before, and feel the greatness of life evolution! ●Biological restoration Restoring the various real forms of ancient creatures, displaying their lifestyles and habits, just like communicate with ancient creatures face-to-face! Watching life evolve from spores to fish, dinosaurs, and humans. ●Intellectual equipment technology Improve intellectual equipment technology, and with the power of technology, to restore the process of life evolution and fasten the speed of life evolution. ●Mysteries of Earth Upgrade evolution technology, speed up the evolution of Paleontology, draw a blueprint for life evolution, and unlock the mysteries of life.  The team members of Life On Earth are ancient creatures enthusiasts. In order to make this game, we have searched a large amount of literature materials. If you are also interested in life evolution, download Life On Earth to join us now! If you have any suggestion, welcome to send an email to us. We may add it in next versions. Email: support@domobile.com Website: https://www.domobile.com Auto-renewable Subscription Rules These rules are attachments of User Agreement. If there is any conflict between these Rules and the User Agreement, these Rules shall prevail. If you need to use Life On Earth subscription service, you should agree to these rules in advance. You understand and agree: 1.The subscription is automatic renewal service under the premise that you agree to use the Life On Earth subscription service. If you agree to use the subscription service, you are deemed to authorize DoMobile, when the subscription about to expire, have the rights to charge fee of next billing cycle from your iTunes account (hereinafter referred to as “accounts”) balances. The subscription service is provided on the premise that you have bound with the above accounts, and DoMobile can successfully charge from the accounts. You are responsible for any failed renewal due to insufficient debit balance in the above accounts. 2.Subscription will automatically renew weekly. You can select the prefer rate. 3.Subscription automatically renews unless it is turned off at least 24-hours before the end of the current period. 4. You may suspend or terminate this subscription service by: Open the phone Settings -> iTunes and App Store -> Apple ID, select “View Apple ID”, enter the “Account Settings” page, click “Subscribe”, select Life On Earth and cancel subscription. 5.Terms of use: http://tpkapp.domogame.com/evolution/loeen.html 6.Privacy Policy: https://www.domobile.com/best/privacy.html

About

Alien Evolution

Control a small alien organism, devour cells and smaller creatures to grow and evolve into a powerful kaiju monster. Unleash rage mode to dominate the neon space world and climb the food chain.

Highlights
  • Devour cells and monsters to evolve
  • Mutate into giant titan kaiju forms
  • Unleash devastating RAGE mode
  • Explore a neon alien universe
  • Easy one-hand io controls
  • Grow and dominate the food chain
Features
Read full description

Alien Evolution: Kaiju Monster is a neon io-style action game where you control a tiny alien organism and devour everything in your path to evolve into a galaxy-crushing kaiju monster. Start as a small mutant creature drifting through deep space. Hunt glowing cells, swallow smaller monsters, and absorb their DNA to grow bigger and stronger. The more you eat, the faster you evolve — from a fragile alien spore into a massive, unstoppable titan beast that dominates the universe. Every cell you devour fills your evolution bar and charges your RAGE mode. Trigger RAGE to smash through swarms of alien creatures, blast enemy monsters, and feed your endless hunger. Climb the food chain, hunt bigger prey, and become the apex predator of the galaxy. GAME FEATURES ▶ EAT & EVOLVE — Devour cells and monsters to grow your alien beast and unlock powerful new evolution forms ▶ KAIJU MONSTER FORMS — Mutate from a tiny organism into a giant titan kaiju with stunning neon designs ▶ RAGE MODE — Unleash devastating power and rampage through enemy swarms ▶ NEON SPACE WORLD — Explore a glowing alien universe packed with strange creatures and cosmic monsters ▶ EASY io CONTROLS — Simple one-hand gameplay with a deep evolution system that's hard to put down ▶ GROW & DOMINATE — Collect orbs, power up your beast, and rise to the top of the food chain Whether you love io games, monster-eating action, or kaiju rampage adventures, Alien Evolution: Kaiju Monster delivers addictive eat-and-grow gameplay you can enjoy anytime, anywhere. Download now, begin your alien evolution, and grow into the most terrifying kaiju monster in the galaxy!

Screenshots

Idle evolution4 screens
Alien Evolution4 screens

Verdict

The call

Idle evolution and Alien Evolution both sit at 4.6 stars, but that hides the real split: 100% of Alien Evolution's written reviews are positive against 75% of Idle evolution's. Idle evolution's advantage is ratings volume (5.9K vs 19). On price, rating, update cadence 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. Idle evolution sells 22 in-app purchases, starting at $1.99 per 7 days and Alien Evolution sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Alien Evolution holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Idle evolution has 5.9K ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 75% of Idle evolution's written reviews are positive against 100% of Alien Evolution's.

UpkeepUpdate frequency

Idle evolution ships an update every 2 months, Alien Evolution monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Idle evolution versus Alien Evolution: the parameters behind the verdict, then further details
ParameterIdle evolutionAlien Evolution
PriceFreeFree
Rating4.6 (5.9K ratings)4.8 (19 ratings) — better
Positive reviews74.9% of reviews100.0% of reviews — better
Number of ratings5.9K — better19
Update frequencyEvery 2 monthsMonthly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size330 MB117 MB
Age rating4+12+
DeveloperDoMobile Co., Ltd.Kittipong Rukpanitmanee

Customer experience

Idle evolution

All ratings5,587 ratings
Positive91.9%
Neutral3.5%
Negative4.5%
Written reviews447 reviews
Positive74.9%
Neutral6.9%
Negative18.1%

Alien Evolution

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Idle evolution

Reported bugs

4 issues
  • Game not loading or crashing
  • Incorrect resource deduction when purchasing items
  • Ads not closing properly
  • Saved progress not syncing across devices

Requested features

5 requests
  • More dinosaur and prehistoric creature models
  • Improved tutorial and onboarding
  • Ability to reset progress and start over
  • More advanced gameplay modes
  • Optimization for larger screens

Alien Evolution

Not enough reviews yet to summarise bugs or requests.

In-app purchases

22 purchases

Idle evolution

Subscriptions1
  • VIP3 Days trial$1.997 Days
One-time21
  • Diamond X100$1.99
  • Limit Gift 01$1.99
  • Sea.sale1$2.99
Show 18 more
  • Energy output Permanent x2$3.99
  • Silver Passport$3.99
  • Speed Gift 2$4.99
  • Limit Gift 6$4.99
  • Limit Gift 04$4.99
  • Sealimit.gift1$4.99
  • Humanlimit.gift1$4.99
  • Diamond X300$4.99
  • Valued package$5.99
  • DNA output Permanent x2$5.99
  • Sea.sale2$9.99
  • Human.sale2$9.99
  • Diamond X675$9.99
  • Life Tree Gift 2$9.99
  • Special golden passport$11.99
  • Golden Passport$19.99
  • Diamond X1500$19.99
  • Sea.sale3$19.99
2 purchases

Alien Evolution

One-time2
  • Skill Point Pack 1$0.99
  • VIP Pass$2.99

Questions

Is Idle evolution free?
Idle evolution is free to download, with in-app purchases available.
Is Alien Evolution free?
Alien Evolution is free to download, with in-app purchases available.
Which has better reviews, Idle evolution or Alien Evolution?
Alien Evolution is rated higher. Idle evolution averages 4.6 out of 5 from 5.9K ratings, while Alien Evolution averages 4.8 from 19 ratings.
Do Idle evolution or Alien Evolution have ads?
Both Idle evolution and Alien Evolution show ads.
Which is updated more often, Idle evolution or Alien Evolution?
Idle evolution ships an update every 2 months, and Alien Evolution monthly. Most recently, Idle evolution was updated on October 26, 2026 and Alien Evolution on October 24, 2026.

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