EPEVER Pair vs Overkill Solar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EPEVER Pair
This app allows users to monitor and control solar power systems. It provides real-time data and system status for solar charge controllers and off-grid inverters. Manage your solar energy solutions efficiently with this tool.
- Real-time system monitoring
- Control solar charge controllers
- Manage off-grid inverters
- View system status
- Solar application system management
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Beijing Epsolar Technology Co., Ltd. was established in March 2007 with more than 30 million RMB registered capital. We are a new and high-tech enterprise which was specialized in power products researching, manufacturing, and marketing. We provide products including solar charge controllers, off-grid inverter, LED driver and special power units etc., as well as design and supply relevant solar application systems. The company has passed the ISO9001: 2008, and products have passed CGC-SOLAR, CE, ROSH, FCC, and ETL certificate, as well as other domestic and international authoritative certification and a number of patents. The products have been extensively applied and highly appraised in a number of major projects at home and abroad. And sell in more than 120 foreign countries and regions. In July 2014, we established Shenzhen branch as our production base. In August 2014, we were listed in NATIONAL EQUITIES EXCHANGE AND QUOTATIONS and launched into capital market successfully.
Overkill Solar
This app connects to a solar battery management system to provide detailed monitoring and control. Users can track cell voltage, capacity, current, and manage charging/discharging ports. It also offers advanced configuration options for calibration, balancing, and protection settings.
- Monitor cell voltage and capacity
- Control charging and discharging ports
- Calibrate voltage and current
- Configure balancer and protection values
- Log voltage, current, and power
- Monitor BMS alarms and temperature
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Overkill Solar iOS App allows users to connect with the Overkill Solar Battery Management System (BMS). It can monitor voltage of the cells, total capacity, charging and discharging current, and switch the charging and discharging ports on or off. Features: - change bluetooth advertising name - unlock hardware protected BMS - save or load BMS configurations - calibrate cells voltage and charging or discharging current - log maximum or minimum voltage, current and power - enable and configure the balancer - modify the capacity settings - monitor temperature - monitor BMS alarms - import and export .fig files - set level 2 and 3 advanced protection values
Screenshots
Verdict
The clearest difference is review sentiment: Overkill Solar at 100% against EPEVER Pair's 15%. Overkill Solar also leads on rating (4.8 vs 2.0). EPEVER Pair's advantage is update cadence (every 3 weeks vs every 4 months) and iOS requirement (9.0 vs 13.4). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Overkill Solar holds the better App Store score, 4.8 against 2.0. Both are backed by a comparable volume of ratings — 16 and 21 respectively. Written reviews point the same way: 15% of EPEVER Pair's written reviews are positive against 100% of Overkill Solar's.
EPEVER Pair ships an update every 3 weeks, Overkill Solar every 4 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | EPEVER Pair | Overkill Solar |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (16 ratings) | 4.8 (21 ratings) — better |
| Positive reviews | 14.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 16 | 21 — better |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 92 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | BEIJING EPSOLAR TECHNOLOGY CO., LTD. | Overkill Solar LLC |
Customer experience
EPEVER Pair
Overkill Solar
In-app purchases
EPEVER Pair
No in-app purchases
Overkill Solar
No in-app purchases
