Overkill Solar vs FNIRSI+
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
FNIRSI+
This application allows users to control and manage specific devices. It offers a straightforward and efficient user experience for interacting with connected equipment.
- Device control
- Equipment management
- Fast user experience
- Simple interface
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The equipment control App developed by Shenzhen Finiris Technology Co., Ltd.
Screenshots
Verdict
The clearest difference is review sentiment: Overkill Solar at 100% against FNIRSI+'s 0%. Overkill Solar also leads on rating (4.8 vs 1.0) and ratings volume (21 vs 1). FNIRSI+'s advantage is update cadence (monthly vs every 4 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 1.0. That said, the two scores are not equally well evidenced: Overkill Solar has 21 ratings behind it against 1, 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 0% of FNIRSI+'s.
Overkill Solar ships an update every 4 months, FNIRSI+ monthly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Overkill Solar | FNIRSI+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (21 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 21 — better | 1 |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 21 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Overkill Solar LLC | Shenzhen FNIRSI Technology Co., Ltd. |
Customer experience
Overkill Solar
FNIRSI+
In-app purchases
Overkill Solar
No in-app purchases
FNIRSI+
No in-app purchases
