# Revisor VMS vs IID pro

The clearest difference is update cadence: Revisor VMS at every 2 months against IID pro's every 38 months. IID pro's advantage is iOS requirement (8.0 vs 12.0). 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.

Revisor VMS ships an update every 2 months, IID pro every 38 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Revisor VMS | IID pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 38 months |
| Size | 12 MB | 111 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Revisor Lab](https://appshunter.io/developer/1448747443) | [Kariman Raouf](https://appshunter.io/developer/1584654639) |

## What reviewers say

### Revisor VMS

[App page](https://appshunter.io/ios/app/revisor-vms/id1448747444)

**Features:** macOS Compatibility

**In-app purchases:** none


### IID pro

[App page](https://appshunter.io/ios/app/iid-pro/id1584654637)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Revisor VMS free?

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

### Is IID pro free?

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

### Do Revisor VMS or IID pro have ads?

Neither Revisor VMS nor IID pro shows ads.

### Which is updated more often, Revisor VMS or IID pro?

Revisor VMS ships an update every 2 months, and IID pro every 38 months. Most recently, Revisor VMS was updated on November 2, 2026 and IID pro on November 7, 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.*