# Idle evolution vs Alien Evolution

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.

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.

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.

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.

## The numbers

| Metric | Idle evolution | Alien Evolution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (5.9K ratings)](https://appshunter.io/ios/app/idle-evolution-life-on-earth/id1484295610/reviews) | **[4.8 (19 ratings)](https://appshunter.io/ios/app/alien-evolution-kaiju-monster/id6778645412/reviews)** |
| Number of ratings | **5.9K** | 19 |
| Positive reviews | 74.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 330 MB | 117 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [DoMobile Co., Ltd.](https://appshunter.io/developer/523576985) | [Kittipong Rukpanitmanee](https://appshunter.io/developer/1032976001) |

## What reviewers say

### Idle evolution

[App page](https://appshunter.io/ios/app/idle-evolution-life-on-earth/id1484295610)

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

**In-app purchases (22)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $1.99 | per 7 days |
| Diamond X100 | $1.99 | one-time |
| Limit Gift 01 | $1.99 | one-time |
| Sea.sale1 | $2.99 | one-time |
| Energy output Permanent x2 | $3.99 | one-time |
| Silver Passport | $3.99 | one-time |
| Speed Gift 2 | $4.99 | one-time |
| Limit Gift 6 | $4.99 | one-time |
| Limit Gift 04 | $4.99 | one-time |
| Sealimit.gift1 | $4.99 | one-time |
| Humanlimit.gift1 | $4.99 | one-time |
| Diamond X300 | $4.99 | one-time |
| Valued package | $5.99 | one-time |
| DNA output Permanent x2 | $5.99 | one-time |
| Sea.sale2 | $9.99 | one-time |
| Human.sale2 | $9.99 | one-time |
| Diamond X675 | $9.99 | one-time |
| Life Tree Gift 2 | $9.99 | one-time |
| Special golden passport | $11.99 | one-time |
| Golden Passport | $19.99 | one-time |
| Diamond X1500 | $19.99 | one-time |
| Sea.sale3 | $19.99 | one-time |

**What reviewers like**

- 👍 Fun and educational game
- 🚀 Engaging gameplay
- 💡 Interesting prehistoric creatures
- 👍 Informative and accurate content
- 💡 Rewards for answering questions instead of ads

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🔍 Unclear instructions
- 🔍 Confusing UI
- 🔍 Inaccurate creature descriptions
- 🔍 Slow progress after a certain point

**Reported bugs**

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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/alien-evolution-kaiju-monster/id6778645412)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skill Point Pack 1 | $0.99 | one-time |
| VIP Pass | $2.99 | one-time |


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*