Overkill Solar vs GreenOE
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
GreenOE
This utility app offers smart battery solutions to optimize device power usage. It aims to enhance the longevity and efficiency of your device's battery. The application is designed for users seeking better power management.
- Smart battery optimization
- Enhanced power efficiency
- Device battery longevity
- User-friendly interface
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Smart Battery Solutions Power Our Lives
Screenshots
Verdict
The clearest difference is rating: Overkill Solar at 4.7 against GreenOE's 1.0. Overkill Solar also leads on ratings volume (16 vs 3). 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.
Overkill Solar holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Overkill Solar has 16 ratings behind it against 3, so its average is the more settled of the two.
Overkill Solar ships an update every 4 months, GreenOE every 7 months. The most recent releases landed on October 14, 2026 and September 20, 2026 respectively.
| Parameter | Overkill Solar | GreenOE |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (16 ratings) — better | 1.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 16 — better | 3 |
| Update frequency | Every 4 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Overkill Solar LLC | Shenzhen Boiling Water Technology Co., Ltd. |
Customer experience
Overkill Solar
GreenOE
In-app purchases
Overkill Solar
No in-app purchases
GreenOE
No in-app purchases
