# iTruss vs StageDocs

The clearest difference is in-app purchases: iTruss at none against StageDocs's 2. iTruss also leads on iOS requirement (11.0 vs 15). StageDocs's advantage is update cadence (every 3 weeks vs every 23 months). On price and device support there is nothing between them.

Both are free to download. StageDocs sells 2 in-app purchases, starting at $3.99 per month. iTruss asks for nothing beyond the download.

iTruss ships an update every 23 months, StageDocs every 3 weeks. The most recent releases landed on June 10, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | iTruss | StageDocs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (15 ratings)](https://appshunter.io/ios/app/itruss/id363376468/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 23 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 70 MB | 9 MB |
| Requires iOS | **11.0** | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xtreme Structures & Fabrication LLC](https://appshunter.io/developer/363376471) | [Jameo UG (haftungsbeschraenkt)](https://appshunter.io/developer/1056639330) |

## What reviewers say

### iTruss

[App page](https://appshunter.io/ios/app/itruss/id363376468)

Calculate structural loads, spans, and truss requirements for construction projects directly from your iPhone. This tool simplifies complex engineering calculations for field use.

**Highlights:** Load calculation, Span determination, Truss analysis, Field use optimization, Engineering calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### StageDocs

[App page](https://appshunter.io/ios/app/stagedocs/id6737455764)

Calculate bridle and beam properties for rigging applications. Features include interactive geometry adjustment, precise input, and load verification for various truss types. Generate detailed calculation protocols.

**Highlights:** Simple and sloped bridle calculations, Interactive bridle geometry adjustment, Precise value input for positioning, Real-time beam calculation, Load verification for trusses, Calculation protocol export (PDF)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rigger monthly | $3.99 | per month |
| Rigger yearly | $29.99 | per year |


## Frequently asked questions

### Is iTruss free?

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

### Is StageDocs free?

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

### Which is updated more often, iTruss or StageDocs?

iTruss ships an update every 23 months, and StageDocs every 3 weeks. Most recently, iTruss was updated on June 10, 2026 and StageDocs on September 20, 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.*