# GDMS vs DMSS HD

The clearest difference is rating: GDMS at 4.7 against DMSS HD's 2.9. GDMS also leads on review sentiment (50% vs 23%) and device support (3 vs 1). DMSS HD's advantage is iOS requirement (10.0 vs 13.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

GDMS holds the better App Store score, 4.7 against 2.9. Both are backed by a comparable volume of ratings — 7 and 20 respectively. Written reviews point the same way: 50% of GDMS's written reviews are positive against 23% of DMSS HD's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on August 5, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | GDMS | DMSS HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/gdms/id1501322947/reviews)** | [2.9 (20 ratings)](https://appshunter.io/ios/app/dmss-hd/id1508658555/reviews) |
| Number of ratings | 7 | **20** |
| Positive reviews | **50.0% of reviews** | 23.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 15 MB | 257 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Grandstream](https://appshunter.io/developer/951547763) | [DongBin](https://appshunter.io/developer/1757539852) |

## 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


### DMSS HD

[App page](https://appshunter.io/ios/app/dmss-hd/id1508658555)

Monitor and manage your security devices remotely. View live feeds, playback recordings, and receive instant alerts. Configure and initialize devices like cameras and access controllers from your mobile device.

**Highlights:** Remote monitoring, Video playback, Push notifications, Device initialization, Remote configuration, Cloud services

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GDMS free?

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

### Is DMSS HD free?

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

### Which has better reviews, GDMS or DMSS HD?

GDMS is rated higher. GDMS averages 4.7 out of 5 from 7 ratings, while DMSS HD averages 2.9 from 20 ratings.

### Do GDMS or DMSS HD have ads?

Neither GDMS nor DMSS HD shows ads.

### Which is updated more often, GDMS or DMSS HD?

GDMS ships an update every 3 months, and DMSS HD every 3 months. Most recently, GDMS was updated on August 5, 2026 and DMSS HD on September 14, 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.*