Overkill Solar vs WattCycle
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
WattCycle
This application connects to Bluetooth batteries to provide real-time monitoring of their status. It allows users to keep a close eye on their battery's performance and health.
- Bluetooth battery connection
- Real-time battery status monitoring
- Battery health tracking
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WattCycle is an app that connects to Bluetooth batteries and monitors their status in real time.
Screenshots
Verdict
The clearest difference is review sentiment: Overkill Solar at 100% against WattCycle's 10%. Overkill Solar also leads on rating (4.8 vs 2.1) and iOS requirement (13.4 vs 16.0). WattCycle's advantage is update cadence (every 11 days 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 2.1. Both are backed by a comparable volume of ratings — 21 and 47 respectively. Written reviews point the same way: 100% of Overkill Solar's written reviews are positive against 10% of WattCycle's.
Overkill Solar ships an update every 4 months, WattCycle every 11 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Overkill Solar | WattCycle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (21 ratings) — better | 2.1 (47 ratings) |
| Positive reviews | 100.0% of reviews — better | 10.3% of reviews |
| Number of ratings | 21 | 47 — better |
| Update frequency | Every 4 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.4 — better | 16.0 |
| Further details — not scored | ||
| Size | 21 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Overkill Solar LLC | WattCycle |
Customer experience
Overkill Solar
WattCycle
In-app purchases
Overkill Solar
No in-app purchases
WattCycle
No in-app purchases
