# Build a Bridge! vs Poly Bridge

The clearest difference is price: Build a Bridge! at Free against Poly Bridge's $1.99. Poly Bridge's advantage is in-app purchases (none vs 11) and ads (none vs shown). On ratings volume and device support there is nothing between them.

Build a Bridge! is free to download; Poly Bridge costs $1.99 up front. Build a Bridge! sells 10 one-off in-app purchases. Poly Bridge asks for nothing beyond the download.

Poly Bridge holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 26K and 18K respectively. Written reviews point the same way: 59% of Build a Bridge!'s written reviews are positive against 77% of Poly Bridge's.

Build a Bridge! ships an update every 2 months, Poly Bridge every 3 weeks. The most recent releases landed on October 20, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Build a Bridge! | Poly Bridge |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.6 (26K ratings)](https://appshunter.io/ios/app/build-a-bridge/id1165289168/reviews) | **[4.8 (18K ratings)](https://appshunter.io/ios/app/poly-bridge/id1197552569/reviews)** |
| Number of ratings | **26K** | 18K |
| Positive reviews | 59.0% of reviews | **77.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#101** |
| Size | 325 MB | 163 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [BoomBit, Inc.](https://appshunter.io/developer/1045926022) | [Dry Cactus](https://appshunter.io/developer/1197552567) |

## What reviewers say

### Build a Bridge!

[App page](https://appshunter.io/ios/app/build-a-bridge/id1165289168)

A physics-based puzzle game where you design and build bridges using various materials. Test your creations in 3D to see if they hold up under pressure, with multiple levels and environments to explore.

**Highlights:** Physics-based bridge construction, Choose from wood, metal, and cables, 86 challenging levels, Realistic physics engine, 3D testing mode, Easy mode for creativity

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Easy Mode | $0.99 | one-time |
| Small Coins Pack | $1.99 | one-time |
| Space World | $1.99 | one-time |
| Easy Mode | $2.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Welcome Offer Unlock All | $4.99 | one-time |
| Welcome Offer - Starter Pack | $4.99 | one-time |
| Orient World | $5.99 | one-time |
| Welcome Offer - Constructor | $9.99 | one-time |
| Unlock All | $9.99 | one-time |

**What reviewers like**

- 🚀 Addictive gameplay
- 👍 Realistic physics
- 🚀 No WiFi required
- 🚀 Good graphics
- 👍 Teaches engineering concepts

**What reviewers complain about**

- 🐛 Frequent crashes
- 💰 Excessive ads and in-app purchases
- 🤯 Extremely difficult levels
- 🤔 Unrealistic bridge scenarios
- 🤯 Confusing mechanics

**Reported bugs**

- Progress not saving properly
- Game freezing and crashing
- Ads causing the game to malfunction

**Requested features**

- More levels and content updates
- Controller support
- Easier difficulty mode
- Less intrusive ads
- Ability to build bridges freely without restrictions


### Poly Bridge

[App page](https://appshunter.io/ios/app/poly-bridge/id1197552569)

**Currently charting:** #101 Top Paid · Puzzle, #161 Top Paid · Simulation (US App Store)

Engage in a creative bridge-building physics simulation. Design and construct various bridge types to guide vehicles to their destinations, overcoming challenging puzzles and unlocking new levels. Test your engineering skills in a campaign mode or create your own designs in the sandbox.

**Highlights:** 105 Campaign Levels, Sandbox Mode, Hydraulic Pistons, Moving Drawbridges, Bridge Design, Physics Puzzles

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

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and intuitive
- 🚀 Incredibly enjoyable
- 💡 Great for learning engineering concepts
- 👍 Awesome game, worth the money

**What reviewers complain about**

- 🐛 Needs fixing, buggy physics
- 🐛 Unfinished features ruin the game
- 🔋 High battery consumption
- 🔍 Difficult to use on mobile, touch controls frustrating

**Reported bugs**

- Crashes on certain levels
- Incorrect budget/stress calculations
- Hydraulics not functioning properly

**Requested features**

- Add more tutorials and guidance
- Allow rotating/translating objects
- Add ability to share custom levels
- Improve performance and stability
- Add color-blindness settings


## Frequently asked questions

### Is Build a Bridge! free?

Build a Bridge! is free to download, with in-app purchases available.

### Is Poly Bridge free?

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

### Which has better reviews, Build a Bridge! or Poly Bridge?

Poly Bridge is rated higher. Build a Bridge! averages 4.6 out of 5 from 26K ratings, while Poly Bridge averages 4.8 from 18K ratings.

### Do Build a Bridge! or Poly Bridge have ads?

Build a Bridge! shows ads; Poly Bridge does not.

### Which is updated more often, Build a Bridge! or Poly Bridge?

Build a Bridge! ships an update every 2 months, and Poly Bridge every 3 weeks. Most recently, Build a Bridge! was updated on October 20, 2026 and Poly Bridge on October 23, 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.*