# Evolution vs Poly Bridge 2

The clearest difference is monetization model: Evolution at free against Poly Bridge 2's paid. Evolution also leads on review sentiment (84% vs 75%). Poly Bridge 2's advantage is chart position (#123 vs unranked) and update cadence (monthly vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Evolution costs $1.99 and Poly Bridge 2 $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Poly Bridge 2 holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 549 and 276 respectively. Written reviews complicate that: 84% of Evolution's written reviews are positive against 75% of Poly Bridge 2's, so the app with the better star average is not the one people write more warmly about.

Evolution ships an update every 2 months, Poly Bridge 2 monthly. Both last shipped on October 1, 2026.

## The numbers

| Metric | Evolution | Poly Bridge 2 |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | [4.4 (549 ratings)](https://appshunter.io/ios/app/evolution-learning-creatures/id1227314223/reviews) | **[4.6 (276 ratings)](https://appshunter.io/ios/app/poly-bridge-2/id1524371466/reviews)** |
| Number of ratings | **549** | 276 |
| Positive reviews | **84.0% of reviews** | 75.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#123** |
| Size | 67 MB | 271 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keiwan Donyagard](https://appshunter.io/developer/1166607047) | [Dry Cactus](https://appshunter.io/developer/1197552567) |

## What reviewers say

### Evolution

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

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)


### Poly Bridge 2

[App page](https://appshunter.io/ios/app/poly-bridge-2/id1524371466)

**Currently charting:** #123 Top Paid · Puzzle, #186 Top Paid · Simulation (US App Store)

Experience a creative engineering challenge by designing and building bridges in this acclaimed simulator. Featuring new levels, mechanics, and a custom physics engine for predictable simulations. Enjoy a new soundtrack with remastered original songs.

**Highlights:** Bridge construction levels, Custom physics engine, New spring material, Original and remastered soundtrack, Creative engineering puzzles

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Engaging and creative
- 👍 Fun and challenging
- 💎 Great value for money
- 🧠 Encourages critical thinking
- 🎨 Allows for creative bridge design

**What reviewers complain about**

- 🐛 Frequent crashes and freezing issues
- 🤯 Extremely difficult later levels
- 🔧 Sandbox mode bugs and limitations
- 🕹️ Inconvenient controls on mobile
- 🔍 Lack of in-game guidance/tutorials

**Reported bugs**

- Progress reset or not saved properly
- Sandbox mode issues (invisible objects, inability to use split joints)
- Graphical glitches (screen flashing when placing springs)
- Crashes on level completion or when loading the game
- Compatibility issues on older/certain iPad models

**Requested features**

- Add leaderboards and community features
- Improve sandbox mode functionality
- Provide more in-depth tutorials
- Add support for controllers
- Expand vehicle and material options


## Frequently asked questions

### Is Evolution free?

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

### Is Poly Bridge 2 free?

Poly Bridge 2 costs $1.99, with no in-app purchases.

### Which has better reviews, Evolution or Poly Bridge 2?

Poly Bridge 2 is rated higher. Evolution averages 4.4 out of 5 from 549 ratings, while Poly Bridge 2 averages 4.6 from 276 ratings.

### Do Evolution or Poly Bridge 2 have ads?

Neither Evolution nor Poly Bridge 2 shows ads.

### Which is updated more often, Evolution or Poly Bridge 2?

Evolution ships an update every 2 months, and Poly Bridge 2 monthly. Most recently, Evolution was updated on October 1, 2026 and Poly Bridge 2 on October 1, 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.*