Overkill Solar vs JK BMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
JK BMS
This application connects to battery management systems via Bluetooth to monitor and control active equalizers. It allows users to view real-time status and adjust operating parameters for battery management equipment.
- Bluetooth connectivity
- Real-time status monitoring
- Operating parameter setting
- Battery management equipment control
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This APP is used for battery management systems and connects to active equalizers via Bluetooth, enabling the display and setting of parameters for the active equalizers. The specific functional modules are as follows: - Real-time status monitoring; - Operating parameter setting; - Battery management system equipment control.
Screenshots
Verdict
The clearest difference is rating: Overkill Solar at 4.8 against JK BMS's 4.1. Overkill Solar also leads on review sentiment (100% vs 75%) and iOS requirement (13.4 vs 15.6). JK BMS's advantage is update cadence (weekly vs every 4 months). 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 4.1. Both are backed by a comparable volume of ratings — 21 and 8 respectively. Written reviews point the same way: 100% of Overkill Solar's written reviews are positive against 75% of JK BMS's.
Overkill Solar ships an update every 4 months, JK BMS weekly. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.
| Parameter | Overkill Solar | JK BMS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (21 ratings) — better | 4.1 (8 ratings) |
| Positive reviews | 100.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 21 — better | 8 |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 21 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Overkill Solar LLC | 鹏 张 |
Customer experience
Overkill Solar
JK BMS
In-app purchases
Overkill Solar
No in-app purchases
JK BMS
No in-app purchases
