# Bridge Builder Simulator vs Stream Trace

The clearest difference is in-app purchases: Stream Trace at none against Bridge Builder Simulator's 5. Stream Trace also leads on update cadence (every 5 weeks vs every 3 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Bridge Builder Simulator sells 5 one-off in-app purchases. Stream Trace asks for nothing beyond the download.

Bridge Builder Simulator ships an update every 3 months, Stream Trace every 5 weeks. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Bridge Builder Simulator | Stream Trace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2.4K ratings)](https://appshunter.io/ios/app/bridge-builder-simulator/id1020639350/reviews)** | — |
| Number of ratings | **2.4K** | — |
| Positive reviews | 42.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 390 MB | 45 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [BoomBit S. A.](https://appshunter.io/developer/423523998) | [Nevad Brise](https://appshunter.io/developer/6785732220) |

## What reviewers say

### Bridge Builder Simulator

[App page](https://appshunter.io/ios/app/bridge-builder-simulator/id1020639350)

Design and construct bridges across diverse environments using various materials. Solve challenging puzzles, manage budgets, and test your engineering skills in multiple game modes.

**Highlights:** Build bridges with cables, wood, and steel, 4 distinct locations to build in, Budget management, Multiple difficulty modes, Mind-bending puzzles, Beautiful graphics

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy 25 Hints | $1.99 | one-time |
| Unlock ALL LEVELS | $3.99 | one-time |
| Hard Games | $4.99 | one-time |
| Easy Games | $4.99 | one-time |
| Unlock All | $14.99 | one-time |

**What reviewers like**

- 🚀 Great game
- 👍 Fun and entertaining
- 💡 Challenging and keeps you thinking

**What reviewers complain about**

- 🐛 Freezes and crashes frequently
- 🔒 Locked behind paywall
- 💰 Excessive ads and in-app purchases
- 👎 Unrealistic physics and poor bridge designs
- 🤯 Frustrating and buggy interface

**Reported bugs**

- Game freezes after failing a level
- Buttons and controls not responsive
- Levels and features locked behind paywall
- Hints and solutions not working as expected

**Requested features**

- Ability to save and load bridge designs
- Sandbox mode with unlimited resources
- Improved physics and more realistic bridge building
- Better level progression and difficulty scaling
- Removal of ads or option to go ad-free


### Stream Trace

[App page](https://appshunter.io/ios/app/stream-trace-roguelike/id6789023723)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bridge Builder Simulator free?

Bridge Builder Simulator is free to download, with in-app purchases available.

### Is Stream Trace free?

Stream Trace is free to download, with no in-app purchases.

### Do Bridge Builder Simulator or Stream Trace have ads?

Both Bridge Builder Simulator and Stream Trace show ads.

### Which is updated more often, Bridge Builder Simulator or Stream Trace?

Bridge Builder Simulator ships an update every 3 months, and Stream Trace every 5 weeks. Most recently, Bridge Builder Simulator was updated on October 19, 2026 and Stream Trace on October 13, 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.*