EP vs Overkill Solar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EP
This communication software connects controllers and inverters. It supports 485 and infrared interfaces, automatically switching content based on device name for simplified operation.
- Controller and inverter communication
- Supports 485 interface
- Supports infrared controller
- Automatic content switching
- Simplified user operation
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This product is the communication software of controller and inverter produced by Huineng Jingdian Technology Co., Ltd. It supports 485 interface controller and infrared controller. It can automatically switch the corresponding content of the current controller by reading the name of the device to simplify the user's operation difficulty.
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 EP's 15%. Overkill Solar also leads on rating (4.7 vs 2.0). EP's advantage is update cadence (every 2 months vs every 4 months) and iOS requirement (8.0 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, 4.7 against 2.0. Both are backed by a comparable volume of ratings — 23 and 16 respectively. Written reviews point the same way: 15% of EP's written reviews are positive against 100% of Overkill Solar's.
EP ships an update every 2 months, Overkill Solar every 4 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | EP | Overkill Solar |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (23 ratings) | 4.7 (16 ratings) — better |
| Positive reviews | 15.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 23 — better | 16 |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 30 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | BEIJING EPSOLAR TECHNOLOGY CO., LTD. | Overkill Solar LLC |
Customer experience
EP
Overkill Solar
In-app purchases
EP
No in-app purchases
Overkill Solar
No in-app purchases
