# TRUSSFALL vs Span

TRUSSFALL and Span are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. TRUSSFALL sells 3 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.

TRUSSFALL ships an update weekly, Span every 5 days. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | TRUSSFALL | Span |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trussfall-bridge-builder/id6768887407/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 60 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CIPRIAN ALEXANDRU FRASINESCU](https://appshunter.io/developer/1896613557) | [Dodecki Labs](https://appshunter.io/developer/1571436485) |

## What reviewers say

### TRUSSFALL

[App page](https://appshunter.io/ios/app/trussfall-bridge-builder/id6768887407)

Build and test realistic bridge designs across 99 engineering trials. Utilize various materials and structural principles to create stable crossings for vehicles. Earn stars by building strong structures that withstand live load simulations.

**Highlights:** 99 engineering trials, 4 realistic materials, Live load simulation, Multiple bridge templates, 10 distinct biomes, On-device data processing

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Hints | $0.99 | one-time |
| 25 Hints | $2.99 | one-time |
| Lifetime Unlock | $4.99 | one-time |


### 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 TRUSSFALL free?

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

### Is Span free?

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

### Do TRUSSFALL or Span have ads?

Neither TRUSSFALL nor Span shows ads.

### Which is updated more often, TRUSSFALL or Span?

TRUSSFALL ships an update weekly, and Span every 5 days. Most recently, TRUSSFALL was updated on September 26, 2026 and Span on September 17, 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.*