# Siege VMS vs Simpro Digital Forms

The clearest difference is update cadence: Simpro Digital Forms at every 5 months against Siege VMS's every 13 months. Siege VMS's advantage is iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Siege VMS ships an update every 13 months, Simpro Digital Forms every 5 months. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Siege VMS | Simpro Digital Forms |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 months** |
| Size | 36 MB | 106 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siege DNA Pty Ltd](https://appshunter.io/developer/1489086466) | [Simpro Software PTY LTD](https://appshunter.io/developer/525679384) |

## What reviewers say

### Siege VMS

[App page](https://appshunter.io/ios/app/siege-vms/id1555837125)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simpro Digital Forms

[App page](https://appshunter.io/ios/app/simpro-digital-forms/id6463597096)

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

**In-app purchases:** none


## Frequently asked questions

### Is Siege VMS free?

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

### Is Simpro Digital Forms free?

Simpro Digital Forms is free to download, with no in-app purchases.

### Do Siege VMS or Simpro Digital Forms have ads?

Neither Siege VMS nor Simpro Digital Forms shows ads.

### Which is updated more often, Siege VMS or Simpro Digital Forms?

Siege VMS ships an update every 13 months, and Simpro Digital Forms every 5 months. Most recently, Siege VMS was updated on October 5, 2026 and Simpro Digital Forms on October 12, 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.*