# Build a Bridge! vs Poly Bridge 3

The clearest difference is rating: Build a Bridge! at 4.6 against Poly Bridge 3's 3.9. Build a Bridge! also leads on ratings volume (26K vs 126). Poly Bridge 3's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 months). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Build a Bridge! sells 10 one-off in-app purchases and Poly Bridge 3 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Build a Bridge! holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Build a Bridge! has 26K ratings behind it against 126, so its average is the more settled of the two. Written reviews complicate that: 59% of Build a Bridge!'s written reviews are positive against 67% of Poly Bridge 3's, so the app with the better star average is not the one people write more warmly about.

Build a Bridge! ships an update every 2 months, Poly Bridge 3 every 4 days. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Build a Bridge! | Poly Bridge 3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (26K ratings)](https://appshunter.io/ios/app/build-a-bridge/id1165289168/reviews)** | [3.9 (126 ratings)](https://appshunter.io/ios/app/poly-bridge-3/id1586851637/reviews) |
| Number of ratings | **26K** | 126 |
| Positive reviews | 59.0% of reviews | **67.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 325 MB | 492 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| 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 3

[App page](https://appshunter.io/ios/app/poly-bridge-3/id1586851637)

A physics-based puzzle game where you design and build bridges to guide vehicles to their destinations. Explore diverse levels, experiment with different bridge types, and test your engineering creativity in open-world and sandbox modes.

**Highlights:** Build various bridge types, Physics-based simulation, Open World Campaign, Sandbox mode for creativity, Leaderboards and player gallery, Custom physics engine

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All | $4.99 | one-time |

**What reviewers like**

- 👍 Fun and engaging gameplay
- 🧠 Challenging and makes you feel like an engineer
- ✨ Great physics
- 😌 Relaxing and pure fun
- 📱 Good for mobile

**What reviewers complain about**

- 🐛 Game-breaking bug with hydraulics
- 🔇 No audio in silent mode
- ⭐ Unclear requirement to get stars
- 🧰 Limits creativity and bad snapping
- 💸 Paid full game after free trial

**Reported bugs**

- Game breaking bug where hydraulics won’t pull asphalt apart
- No audio when in silent mode
- No audio
- Game kept bugging, wouldn’t let me place anything in the sandbox
- Game Center can’t reconnect after reinstalling

**Requested features**

- Turn off silent mode to hear game audio
- Add workshop and ability to share bridges
- Bring weekly mode to iOS
- Allow players to upload levels for others to play
- Add an Olympics mode


## Frequently asked questions

### Is Build a Bridge! free?

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

### Is Poly Bridge 3 free?

Poly Bridge 3 is free to download, with in-app purchases available.

### Which has better reviews, Build a Bridge! or Poly Bridge 3?

Build a Bridge! is rated higher. Build a Bridge! averages 4.6 out of 5 from 26K ratings, while Poly Bridge 3 averages 3.9 from 126 ratings.

### Do Build a Bridge! or Poly Bridge 3 have ads?

Build a Bridge! shows ads; Poly Bridge 3 does not.

### Which is updated more often, Build a Bridge! or Poly Bridge 3?

Build a Bridge! ships an update every 2 months, and Poly Bridge 3 every 4 days. Most recently, Build a Bridge! was updated on September 25, 2026 and Poly Bridge 3 on September 21, 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.*