# Green Building Construction vs SIGNAX DOCS

The clearest difference is in-app purchases: SIGNAX DOCS at none against Green Building Construction's 3. Green Building Construction's advantage is iOS requirement (10.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Green Building Construction sells 3 in-app purchases, starting at $0.99 per month. SIGNAX DOCS asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Green Building Construction | SIGNAX DOCS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 67 MB | 27 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Snappii](https://appshunter.io/developer/587096976) | [SIGNAX SOFTWARE DESIGN L.L.C](https://appshunter.io/developer/1664784892) |

## What reviewers say

### Green Building Construction

[App page](https://appshunter.io/ios/app/green-building-construction/id1158126562)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Annual Subscription | $9.99 | per year |
| Ad Removal | $0.99 | one-time |


### SIGNAX DOCS

[App page](https://appshunter.io/ios/app/signax-docs/id6737717451)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Green Building Construction free?

Green Building Construction is free to download, with in-app purchases available.

### Is SIGNAX DOCS free?

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

### Do Green Building Construction or SIGNAX DOCS have ads?

Neither Green Building Construction nor SIGNAX DOCS shows ads.

### Which is updated more often, Green Building Construction or SIGNAX DOCS?

Green Building Construction ships an update every 3 months, and SIGNAX DOCS every 3 months. Most recently, Green Building Construction was updated on October 7, 2026 and SIGNAX DOCS on October 9, 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.*