# PV VSM vs LivDMS

The clearest difference is iOS requirement: PV VSM at 13.4 against LivDMS's 15.0. 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.

## The numbers

| Metric | PV VSM | LivDMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 28 MB | 1 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Pfeiffer Vacuum GmbH](https://appshunter.io/developer/445843155) | [Livguard Energy Technologies](https://appshunter.io/developer/1390503825) |

## What reviewers say

### PV VSM

[App page](https://appshunter.io/ios/app/pv-vsm/id1578662468)

**Features:** macOS Compatibility

**In-app purchases:** none


### LivDMS

[App page](https://appshunter.io/ios/app/livdms/id6503430633)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PV VSM free?

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

### Is LivDMS free?

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

### Do PV VSM or LivDMS have ads?

Neither PV VSM nor LivDMS shows ads.

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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.*