Super B vs Overkill Solar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Super B
Monitor your Epsilon battery status in real-time, including voltage, current, power, and state of charge. Plan your off-grid time accurately and receive notifications for firmware updates. This app provides essential insights for managing your battery's performance.
- Real-time battery status monitoring
- Voltage, current, and power insights
- State of charge estimation
- Off-grid duration prediction
- Firmware update notifications
- Support for Epsilon 90Ah batteries
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With the Be in Charge app you have the power to be independent. The app gives you insights in the battery status such as voltage, current, power, warnings, errors and the state of charge. Via the Be in Charge app you will know exactly how long you can be off-grid before the battery is empty and needs to be charged. You are in control. The Be in Charge APP from version 1.5.0 and up, now also support connecting to the Epsilon 90Ah. PLEASE NOTE: To use the full (new) functionality of this APP, the firmware of the battery must be updated to the latest firmware. The latest firmware is always available in the app and a notification will be shown whenever a newer version is available.
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 Super B's 27%. Overkill Solar also leads on device support (3 vs 1) and iOS requirement (13.4 vs 16.6). On price, update cadence, 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.
Super B ships an update every 3 months, Overkill Solar every 4 months. Both last shipped on November 3, 2026.
| Parameter | Super B | Overkill Solar |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (21 ratings) — better |
| Positive reviews | 26.7% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 21 — better |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 13.4 — better |
| Further details — not scored | ||
| Size | 33 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Super B | Overkill Solar LLC |
Customer experience
Super B
Overkill Solar
In-app purchases
Super B
No in-app purchases
Overkill Solar
No in-app purchases
