# Poly Bridge 3 vs Water Box

The clearest difference is rating: Water Box at 4.8 against Poly Bridge 3's 3.9. Water Box also leads on review sentiment (92% vs 65%) and ratings volume (1.8K vs 135). Poly Bridge 3's advantage is ads (none vs shown) and update cadence (every 4 days vs every 9 days). On price, in-app purchases, monetization model and device support there is nothing between them.

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

Water Box holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Water Box has 1.8K ratings behind it against 135, so its average is the more settled of the two. Written reviews point the same way: 65% of Poly Bridge 3's written reviews are positive against 92% of Water Box's.

Poly Bridge 3 ships an update every 4 days, Water Box every 9 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Poly Bridge 3 | Water Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (135 ratings)](https://appshunter.io/ios/app/poly-bridge-3/id1586851637/reviews) | **[4.8 (1.8K ratings)](https://appshunter.io/ios/app/water-box-physics-sandbox/id6741103044/reviews)** |
| Number of ratings | 135 | **1.8K** |
| Positive reviews | 65.0% of reviews | **92.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 9 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 492 MB | 87 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Dry Cactus](https://appshunter.io/developer/1197552567) | [Lukas Oertel](https://appshunter.io/developer/1562391231) |

## What reviewers say

### 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


### Water Box

[App page](https://appshunter.io/ios/app/water-box-physics-sandbox/id6741103044)

Explore realistic fluid dynamics and ragdoll physics in this sandbox playground. Sink ships, experiment with various liquids, and unleash destruction with a wide array of tools and elements. Build and test your creations in a detailed simulation environment.

**Highlights:** Realistic water and powder simulation, Ragdoll people playground experiments, Ship sinking and floating simulator, Gore and destruction simulator, Alchemy, fire, and chemical reactions, Build and share creations

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Increase max water by 10000 | $2.99 | one-time |
| 250 Coins | $4.99 | one-time |
| Creative Package 50% Discount | $4.99 | one-time |
| Increase max water by 20000 | $4.99 | one-time |
| 550 Coins | $7.99 | one-time |
| Creative Package | $9.99 | one-time |
| Increase max water by 50000 | $9.99 | one-time |
| 1200 Coins | $14.99 | one-time |
| Increase max water by 100000 | $17.99 | one-time |
| 2300 Coins | $24.99 | one-time |

**What reviewers like**

- 👍 Good game
- 👍 Awesome game
- 👍 Fun and good game
- 👍 Great game
- 👍 Satisfying and fun

**What reviewers complain about**

- 🐛 Crashes frequently
- 💡 Increase water capacity

**Reported bugs**

- Crashes frequently

**Requested features**

- Make ships sink like in Floating Sandbox


## Frequently asked questions

### Is Poly Bridge 3 free?

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

### Is Water Box free?

Water Box is free to download, with in-app purchases available.

### Which has better reviews, Poly Bridge 3 or Water Box?

Water Box is rated higher. Poly Bridge 3 averages 3.9 out of 5 from 135 ratings, while Water Box averages 4.8 from 1.8K ratings.

### Do Poly Bridge 3 or Water Box have ads?

Water Box shows ads; Poly Bridge 3 does not.

### Which is updated more often, Poly Bridge 3 or Water Box?

Poly Bridge 3 ships an update every 4 days, and Water Box every 9 days. Most recently, Poly Bridge 3 was updated on October 30, 2026 and Water Box on October 28, 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.*