Comparison

GDMS vs SIPBlue 2.0

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GDMS

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
Read full description

GDMS mobile application provides centralized, secure and zero-operation management methods and solutions for Grandstream audio/video products users. The device administrators can work on mobile devices by scanning the codes to add devices, configure accounts/upgrade devices firmware quickly, and the alert messages can be pushed to mobile client. Including: 1. Scan code to add device: Support to scan the barcodes of a batch of devices to add the devices to GDMS platform. 2. Manage device: Support to configure accounts for devices, upgrade devices firmware, and start the devices remotely. 3. Monitor device in real-time: Push the device registration, abnormal status, alert messages to mobile management client.

About

SIPBlue 2.0

This communication app offers secure, high-definition voice and video calls, instant messaging, and SMS/MMS services. It features end-to-end encryption, call history, and an intuitive interface for seamless connectivity anywhere, anytime.

Highlights
  • HD voice and video calls
  • Instant messaging
  • SMS/MMS services
  • End-to-end encryption
  • Call history
  • QR code login
  • Auto provisioning
Features
Read full description

SIPBLUE 2.0 Extends The Power of Communication For You. Tap the cutting-edge communication application- SIPBLUE 2.0 for an exceptional real-time communication experience. Magnify your mobile phone's power with SIPBLUE 2.0 and choose secure, hassle-free conversations with HD voice/video calls and instant messaging. Connect effortlessly – ANYWHERE, ANYTIME. Key Features: Scan and Login with QR Code Use the application for SMS - services Voice -services For Both A Better Way to Call Tap on the phone screen and connect easily through voice, video, messaging services(SMS/MMS), and fax services. Rich user experience with cristal-clear voice Keep track of important calls with call history of incoming, outgoing, and missed call details. Easy-to-use Interface and Intuitive design End-to-end encryption for robust security and privacy Auto Provisioning Navigate through the application effortlessly Instant Messaging to fruitful collaborations Tap to get started.

Screenshots

GDMS4 screens
SIPBlue 2.04 screens

Verdict

The call

The clearest difference is rating: GDMS at 4.7 against SIPBlue 2.0's 4.2. GDMS also leads on iOS requirement (13.0 vs 15.6). SIPBlue 2.0's advantage is update cadence (monthly vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

GDMS holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 7 and 6 respectively.

UpkeepUpdate frequency

GDMS ships an update every 3 months, SIPBlue 2.0 monthly. The most recent releases landed on August 5, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 7 level
GDMS versus SIPBlue 2.0: the parameters behind the verdict, then further details
ParameterGDMSSIPBlue 2.0
PriceFreeFree
Rating4.7 (7 ratings) — better4.2 (6 ratings)
Positive reviews50.0% of reviews—
Number of ratings7 — better6
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size15 MB54 MB
Age rating4+4+
DeveloperGrandstreamQuestBlue Systems, Inc

Customer experience

GDMS

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

SIPBlue 2.0

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

GDMS

No in-app purchases

None

SIPBlue 2.0

No in-app purchases

Questions

Is GDMS free?
GDMS is free to download, with no in-app purchases.
Is SIPBlue 2.0 free?
SIPBlue 2.0 is free to download, with no in-app purchases.
Which has better reviews, GDMS or SIPBlue 2.0?
GDMS is rated higher. GDMS averages 4.7 out of 5 from 7 ratings, while SIPBlue 2.0 averages 4.2 from 6 ratings.
Do GDMS or SIPBlue 2.0 have ads?
Neither GDMS nor SIPBlue 2.0 shows ads.
Which is updated more often, GDMS or SIPBlue 2.0?
GDMS ships an update every 3 months, and SIPBlue 2.0 monthly. Most recently, GDMS was updated on August 5, 2026 and SIPBlue 2.0 on September 15, 2026.

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