PowerMaster vs JREECOASIS
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
PowerMaster
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Monitor your UPS and get prompt notification anywhere and anytime! PowerMaster app provides a status overview of your UPS. It enables you to monitor your UPS and supports event notifications to ensure instant event update. PowerMaster app also supports multiple UPS monitoring. You can select a UPS from the UPS List and check its status. Download free PowerMaster app and enjoy the benefits the following features bring: - Monitor Monitor page provides an overview of the UPS current status, including power supplied, voltage supplied, power condition, battery capacity, battery status, estimated runtime and UPS load. Multiple UPS monitoring is also available. - Event log Event log info provides the a list of happened events.
JREECOASIS
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JREECOASIS Battery Management System JREECOASIS provides a complete battery management solution for monitoring and protecting lithium battery systems. Our platform gives you clear visibility and reliable control over your energy storage with intuitive features and solid safety measures. Core Monitoring Features Accurate State of Charge tracking, individual cell voltage monitoring, multi-zone temperature detection, and real-time current measurement during charge and discharge. Protection Systems Overvoltage and undervoltage protection, adjustable overcurrent protection, thermal runaway prevention, and multi-layer safety architecture. Performance Optimization Active cell balancing technology, intelligent charge and discharge management, and battery health condition assessment. Connectivity Options Bluetooth wireless connection, CAN bus communication interface, and cloud-based data synchronization. User Features Fault alerts and diagnostic tools, customizable operating parameters, power consumption monitoring, and data logging with report generation. Technical Specifications Operating temperature range from -20Β°C to 60Β°C, advanced isolation protection, and broad compatibility with various lithium batteries. Ideal Applications Residential energy storage, commercial energy storage systems, electric vehicles, solar power installations, and portable power solutions. JREECOASIS puts your energy under your control. Features are continuously updated to enhance user experience.
Screenshots
Verdict
The clearest difference is update cadence: JREECOASIS at weekly against PowerMaster's every 4 months. PowerMaster's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PowerMaster ships an update every 4 months, JREECOASIS weekly. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.
| Parameter | PowerMaster | JREECOASIS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Weekly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 β better | 15.6 |
| Further details β not scored | ||
| Size | 52 MB | 37 MB |
| Age rating | 17+ | 4+ |
| Developer | Cyber Energy Co., Ltd. | ζ±θ₯ΏθΎΎδΌη½η»η§ζζιε ¬εΈ |
In-app purchases
PowerMaster
No in-app purchases
JREECOASIS
No in-app purchases









