# CNMS vs RMS Delta

The clearest difference is update cadence: RMS Delta at weekly against CNMS's monthly. CNMS's advantage is iOS requirement (13.0 vs 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.

CNMS ships an update monthly, RMS Delta weekly. Both last shipped on October 27, 2026.

## The numbers

| Metric | CNMS | RMS Delta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/rms-delta/id6484267957/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free |
| Size | 40 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [兆涛 汤](https://appshunter.io/developer/1472868205) | [Rochester Sensors, LLC](https://appshunter.io/developer/1006999301) |

## What reviewers say

### CNMS

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

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

**In-app purchases:** none


### RMS Delta

[App page](https://appshunter.io/ios/app/rms-delta/id6484267957)

This cloud-based platform offers remote telemetry reporting for tank monitoring. It provides scheduled, customized reports and 24/7 access to data for businesses to monitor costs, optimize profits, and improve operational efficiency.

**Highlights:** Cloud-based telemetry reporting, Customizable tank reports, 24/7 remote data access, Cost monitoring and profit optimization, Improved operational efficiency, Route planning optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CNMS free?

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

### Is RMS Delta free?

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

### Do CNMS or RMS Delta have ads?

Neither CNMS nor RMS Delta shows ads.

### Which is updated more often, CNMS or RMS Delta?

CNMS ships an update monthly, and RMS Delta weekly. Most recently, CNMS was updated on October 27, 2026 and RMS Delta on October 27, 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.*