Comparison

GSC Assistant vs PD BlackPearl

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

Head to head
About

GSC Assistant

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GSC Assistant is a mobile client that works with the GSC series from Grandstream. It supports fast management and playback of GSC3516/3506/3510/3505 products on your mobile device. It also features fast management of GSCs in the same LAN, quick positioning, convenient playback of single GSC, custom partitioning of multiple GSCs, and unified playback for multiple zones. It also supports IPv4 and IPv6, and is compatible with complex network environments. GSC Assistant enables users to manage their GSCs’ playback more conveniently and quickly, allows GSCs to better integrate into the users' work and life.

About

PD BlackPearl

Features
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Take full control of your BlackPearl Pump with our dedicated mobile app. Designed for convenience and performance, this app lets you connect and manage your pump effortlessly via Bluetooth. Key Features: Bluetooth Connectivity: Quickly pair your device with your PD WaterSystem Pump for seamless wireless control. Pump Control: Start, stop, and adjust pump operation directly from your smartphone. Custom Settings: Set and fine-tune pump parameters to match your specific needs. Real-Time Alerts: Instantly view error messages and status updates to keep your system running smoothly. Support Access: Easily contact customer assistance for help or technical support.

Screenshots

GSC Assistant4 screens
PD BlackPearl4 screens

Verdict

The call

The clearest difference is device support: GSC Assistant at 3 against PD BlackPearl's 1. GSC Assistant also leads on iOS requirement (12.0 vs 16.0). On price, update cadence, 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.

UpkeepUpdate frequency

GSC Assistant ships an update every 18 months, PD BlackPearl every 12 months. Both last shipped on October 25, 2026.

Scorecard2 real differences · 4 level
GSC Assistant versus PD BlackPearl: the parameters behind the verdict, then further details
ParameterGSC AssistantPD BlackPearl
PriceFreeFree
Update frequencyEvery 18 monthsEvery 12 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size38 MB3 MB
Age rating12+4+
DeveloperGrandstreamPD WATER SYSTEMS LLC

In-app purchases

None

GSC Assistant

No in-app purchases

None

PD BlackPearl

No in-app purchases

Questions

Is GSC Assistant free?
GSC Assistant is free to download, with no in-app purchases.
Is PD BlackPearl free?
PD BlackPearl is free to download, with no in-app purchases.
Do GSC Assistant or PD BlackPearl have ads?
Neither GSC Assistant nor PD BlackPearl shows ads.
Which is updated more often, GSC Assistant or PD BlackPearl?
GSC Assistant ships an update every 18 months, and PD BlackPearl every 12 months. Most recently, GSC Assistant was updated on October 25, 2026 and PD BlackPearl on October 25, 2026.

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