# Build a Bridge! vs Span

The clearest difference is ads: Span at none against Build a Bridge!'s shown. Span also leads on update cadence (every 5 days vs every 2 months). Build a Bridge!'s advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

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

Build a Bridge! ships an update every 2 months, Span every 5 days. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Build a Bridge! | Span |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (26K ratings)](https://appshunter.io/ios/app/build-a-bridge/id1165289168/reviews)** | — |
| Number of ratings | **26K** | — |
| Positive reviews | 59.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 325 MB | 60 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [BoomBit, Inc.](https://appshunter.io/developer/1045926022) | [Dodecki Labs](https://appshunter.io/developer/1571436485) |

## 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


### Span

[App page](https://appshunter.io/ios/app/span-physics-bridge-builder/id6790187323)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Span Complete | $7.99 | one-time |


## Frequently asked questions

### Is Build a Bridge! free?

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

### Is Span free?

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

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

Build a Bridge! shows ads; Span does not.

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

Build a Bridge! ships an update every 2 months, and Span every 5 days. Most recently, Build a Bridge! was updated on October 20, 2026 and Span on October 4, 2026.

---

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