Overkill Solar vs HeatGenie
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
HeatGenie
Control your parking diesel heater remotely via Bluetooth. Adjust temperature, switch gears, and turn the unit on or off directly from your mobile device.
- Bluetooth connectivity
- Remote temperature adjustment
- On/Off power control
- Gear switching
- Smart hardware integration
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HeatGenie connects to smart hardware products through Bluetooth on your mobile phone, allowing you to easily control the parking diesel heater through the mobile app, complete operations such as adjusting the temperature, switching gears, and turning the machine on and off.
Screenshots
Verdict
The clearest difference is review sentiment: Overkill Solar at 100% against HeatGenie's 18%. Overkill Solar also leads on rating (4.8 vs 2.3) and update cadence (every 4 months vs every 10 months). On price, ads, in-app purchases and monetization model 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 2.3. That said, the two scores are not equally well evidenced: Overkill Solar has 21 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Overkill Solar's written reviews are positive against 18% of HeatGenie's.
Overkill Solar ships an update every 4 months, HeatGenie every 10 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Overkill Solar | HeatGenie |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (21 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 100.0% of reviews — better | 18.2% of reviews |
| Number of ratings | 21 — better | 3 |
| Update frequency | Every 4 months — better | Every 10 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 | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Overkill Solar LLC | Wenzhou Bogu Intelligent Technology Co. |
Customer experience
Overkill Solar
HeatGenie
In-app purchases
Overkill Solar
No in-app purchases
HeatGenie
No in-app purchases
