# Evolution vs ERAIASON

The clearest difference is rating: ERAIASON at 5.0 against Evolution's 4.4. ERAIASON also leads on update cadence (every 3 weeks vs every 2 months). Evolution's advantage is ratings volume (549 vs 1) and price ($1.99 vs $4.99). On ads, in-app purchases and device support there is nothing between them.

Evolution costs $1.99 and ERAIASON $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ERAIASON holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Evolution has 549 ratings behind it against 1, so its average is the more settled of the two.

Evolution ships an update every 2 months, ERAIASON every 3 weeks. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Evolution | ERAIASON |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | [4.4 (549 ratings)](https://appshunter.io/ios/app/evolution-learning-creatures/id1227314223/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eraiason/id6751147600/reviews)** |
| Number of ratings | **549** | 1 |
| Positive reviews | 83.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Best chart rank | **#162** | — |
| Size | 67 MB | 184 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Keiwan Donyagard](https://appshunter.io/developer/1166607047) | [Christian Hahm](https://appshunter.io/developer/1833688520) |

## What reviewers say

### Evolution

[App page](https://appshunter.io/ios/app/evolution-learning-creatures/id1227314223)

**Currently charting:** #162 Top Paid · Simulation (US App Store)

Design and build unique creatures using joints, bones, and muscles. Witness their learning and improvement through evolutionary algorithms and neural networks as they tackle tasks like running, jumping, and flying. Share your creations with friends.

**Highlights:** Creature design with joints, bones, muscles, Neural network learning, Evolutionary algorithm improvement, Tasks: running, jumping, climbing, flying, Share simulation saves and creature designs, View source code

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great game
- 🚀 Addictive and fun
- 💡 Interesting concept of AI-driven evolution
- 👍 Unique and creative
- 👍 Enjoyable to watch creatures evolve

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🐛 Glitches and bugs
- 🐛 Creatures behave erratically
- 🐛 Difficulty creating functional creatures

**Reported bugs**

- Creatures re-appear after being deleted
- Horizontal distance not recorded properly
- Simulation screen turns white
- Creatures get stuck in a looping state

**Requested features**

- Add swimming and flying modes
- Ability to customize creature body parts
- Option to speed up or pause evolution
- Save and load creature designs
- More task types (e.g. grabbing, throwing)


### ERAIASON

[App page](https://appshunter.io/ios/app/eraiason/id6751147600)

Oversee a population of evolving AI robots in a dynamic voxel landscape. Design robots, build terrains, and influence their evolutionary path as they learn, adapt, and compete in a simulated ecosystem.

**Highlights:** Evolving AI robots, Dynamic voxel landscape, Robot design and creation, Environment manipulation, Interactive evolutionary control, Simulated ecosystem

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Evolution free?

Evolution costs $1.99, with no in-app purchases.

### Is ERAIASON free?

ERAIASON costs $4.99, with no in-app purchases.

### Which has better reviews, Evolution or ERAIASON?

ERAIASON is rated higher. Evolution averages 4.4 out of 5 from 549 ratings, while ERAIASON averages 5.0 from 1 ratings.

### Do Evolution or ERAIASON have ads?

Neither Evolution nor ERAIASON shows ads.

### Which is updated more often, Evolution or ERAIASON?

Evolution ships an update every 2 months, and ERAIASON every 3 weeks. Most recently, Evolution was updated on October 11, 2026 and ERAIASON on October 6, 2026.

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