Solar Guardian vs Overkill Solar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar Guardian
Monitor and control various solar energy systems, including inverters, chargers, and storage solutions. Adjust parameters and view data for optimal energy management.
- Data display for solar systems
- Parameter setting for inverters
- Supports grid-tie inverters
- Hybrid inverter management
- Energy storage system monitoring
- Home and mobile energy storage control
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Solar Guardian is a new application with the core function of data display and parameter setting for inverters, solar chargers, grid-tie inverters, hybrid inverters, energy storage systems, N+1 hybrid systems, home energy storage and mobile energy storage.
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 Solar Guardian's 17%. Overkill Solar also leads on rating (4.8 vs 2.3). Solar Guardian's advantage is update cadence (every 2 months 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 2.3. Both are backed by a comparable volume of ratings — 17 and 21 respectively. Written reviews point the same way: 17% of Solar Guardian's written reviews are positive against 100% of Overkill Solar's.
Solar Guardian ships an update every 2 months, Overkill Solar every 4 months. Both last shipped on October 24, 2026.
| Parameter | Solar Guardian | Overkill Solar |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (17 ratings) | 4.8 (21 ratings) — better |
| Positive reviews | 16.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 17 | 21 — better |
| 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 | 13.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 84 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | BEIJING EPSOLAR TECHNOLOGY CO., LTD. | Overkill Solar LLC |
Customer experience
Solar Guardian
Overkill Solar
In-app purchases
Solar Guardian
No in-app purchases
Overkill Solar
No in-app purchases
