JS Maintenance Mate vs GSL Smart ESS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JS Maintenance Mate
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JS Maintenance Mate is the app for managing your companys IoT connected devices. The app provides simple signup, login and workflow for viewing your devices status and data.
GSL Smart ESS
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GSL Energy provides monitoring solutions for various high and low voltage battery system devices, supporting battery systems, residential energy storage, and commercial and industrial energy storage systems.
Screenshots
Verdict
The clearest difference is update cadence: JS Maintenance Mate at every 5 weeks against GSL Smart ESS's every 9 months. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
JS Maintenance Mate ships an update every 5 weeks, GSL Smart ESS every 9 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.
| Parameter | JS Maintenance Mate | GSL Smart ESS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 26 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | JS Proputec AS | SHENZHEN GSL ENERGY CO LTD |
In-app purchases
JS Maintenance Mate
No in-app purchases
GSL Smart ESS
No in-app purchases
Questions
Is JS Maintenance Mate free?
Is GSL Smart ESS free?
Do JS Maintenance Mate or GSL Smart ESS have ads?
Which is updated more often, JS Maintenance Mate or GSL Smart ESS?
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