# VMMS vs CNMS

The clearest difference is update cadence: CNMS at every 3 weeks against VMMS's every 19 months. 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.

VMMS ships an update every 19 months, CNMS every 3 weeks. The most recent releases landed on June 1, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | VMMS | CNMS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 35 MB | 48 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SRT](https://appshunter.io/developer/1073831034) | [兆涛 汤](https://appshunter.io/developer/1472868205) |

## What reviewers say

### VMMS

[App page](https://appshunter.io/ios/app/vmms/id1076474879)

This application allows users to remotely monitor vehicle activity through their mobile device. It provides real-time display of device status, maps, video feeds, and alarms, with options for video playback and image queries.

**Highlights:** Device display, Map display, Video display, Alarm display, Video playback, Image query

**Features:** macOS Compatibility

**In-app purchases:** none


### CNMS

[App page](https://appshunter.io/ios/app/cnms/id1586101410)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VMMS free?

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

### Is CNMS free?

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

### Do VMMS or CNMS have ads?

Neither VMMS nor CNMS shows ads.

### Which is updated more often, VMMS or CNMS?

VMMS ships an update every 19 months, and CNMS every 3 weeks. Most recently, VMMS was updated on June 1, 2026 and CNMS on September 10, 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.*