# Westlab vs CNMS

The clearest difference is update cadence: CNMS at every 3 weeks against Westlab's every 7 months. CNMS also leads on iOS requirement (12.0 vs 14.0). 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.

Westlab ships an update every 7 months, CNMS every 3 weeks. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Westlab | CNMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Size | 132 MB | 48 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [AltiPeak SA](https://appshunter.io/developer/963601765) | [兆涛 汤](https://appshunter.io/developer/1472868205) |

## What reviewers say

### Westlab

[App page](https://appshunter.io/ios/app/westlab/id1457272244)

**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 Westlab free?

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

### Is CNMS free?

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

### Do Westlab or CNMS have ads?

Neither Westlab nor CNMS shows ads.

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

Westlab ships an update every 7 months, and CNMS every 3 weeks. Most recently, Westlab was updated on October 1, 2026 and CNMS on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*