# GDMS vs cnMaestro Subscriber

GDMS and cnMaestro Subscriber are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GDMS ships an update every 3 months, cnMaestro Subscriber every 2 months. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | GDMS | cnMaestro Subscriber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/gdms/id1501322947/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 15 MB | 47 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grandstream](https://appshunter.io/developer/951547763) | [Cambium Networks](https://appshunter.io/developer/965550004) |

## What reviewers say

### GDMS

[App page](https://appshunter.io/ios/app/gdms/id1501322947)

This app offers centralized, secure management for Grandstream audio/video products. Administrators can easily add devices by scanning codes, configure accounts, upgrade firmware, and receive real-time alerts about device status.

**Highlights:** Scan code to add devices, Configure accounts, Upgrade device firmware, Remote device start, Real-time device monitoring, Push alert messages

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

**In-app purchases:** none


### cnMaestro Subscriber

[App page](https://appshunter.io/ios/app/cnmaestro-subscriber/id6470334829)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GDMS free?

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

### Is cnMaestro Subscriber free?

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

### Do GDMS or cnMaestro Subscriber have ads?

Neither GDMS nor cnMaestro Subscriber shows ads.

### Which is updated more often, GDMS or cnMaestro Subscriber?

GDMS ships an update every 3 months, and cnMaestro Subscriber every 2 months. Most recently, GDMS was updated on October 2, 2026 and cnMaestro Subscriber on September 28, 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.*