# OneTouchSIPPhone vs GDMS

The clearest difference is rating: GDMS at 4.7 against OneTouchSIPPhone's 2.3. OneTouchSIPPhone'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 2.3. Both are backed by a comparable volume of ratings — 3 and 7 respectively.

OneTouchSIPPhone ships an update every 5 months, GDMS every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | OneTouchSIPPhone | GDMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/onetouchsipphone/id1453788747/reviews) | **[4.7 (7 ratings)](https://appshunter.io/ios/app/gdms/id1501322947/reviews)** |
| Number of ratings | 3 | **7** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 24 MB | 15 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Discreet Solutions Pvt Ltd](https://appshunter.io/developer/1441759108) | [Grandstream](https://appshunter.io/developer/951547763) |

## What reviewers say

### OneTouchSIPPhone

[App page](https://appshunter.io/ios/app/onetouchsipphone/id1453788747)

This application facilitates VOIP audio and video communication using the SIP protocol. It functions as an intercom system for seamless voice and video calls.

**Highlights:** VOIP audio communication, Video calling, SIP protocol based, Intercom functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is OneTouchSIPPhone free?

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

### Is GDMS free?

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

### Which has better reviews, OneTouchSIPPhone or GDMS?

GDMS is rated higher. OneTouchSIPPhone averages 2.3 out of 5 from 3 ratings, while GDMS averages 4.7 from 7 ratings.

### Do OneTouchSIPPhone or GDMS have ads?

Neither OneTouchSIPPhone nor GDMS shows ads.

### Which is updated more often, OneTouchSIPPhone or GDMS?

OneTouchSIPPhone ships an update every 5 months, and GDMS every 3 months. Most recently, OneTouchSIPPhone was updated on October 24, 2026 and GDMS on October 24, 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.*