Overkill Solar vs Temp Master
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
Temp Master
This utility app enhances thermal imaging capabilities for compatible Thermal Master devices, offering precise temperature detection and advanced image analysis. It allows users to view, save, and export thermal data offline, with features like digital zoom and improved resolution for various inspection tasks.
- High-accuracy temperature detection
- Enhanced infrared resolution
- Offline data viewing and export
- Up to 15x digital zoom
- Reduced background noise
- Long battery life optimization
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Temp Master This app is exclusively compatible with the following Thermal Master devices: P1 / P2 Pro / P3. Thermal Master offers two main series of thermal imaging devices—Temp Master (traditional smartphone thermal cameras) and Thermal Master (thermal monoculars)—covering a wide range of use cases from home temperature monitoring and industrial inspections to long-range (up to 1500 meters) outdoor night vision. What's new in this version: Resolved compatibility issues with the X³ super-resolution algorithm on some models. Now fully supports enhanced infrared resolution of 512×384. P2 now supports high-accuracy temperature detection within ±2.7℉ (±1.5℃). With an upgraded IQ+ precision algorithm, temperature readings for HVAC systems, electrical circuits, PCB diagnostics, and automotive inspections are now even more reliable. The P2 pioneered ultra-low power consumption in thermal imaging—just 0.3W. We've further optimized the algorithm, battery life can now reach 5–7 hours or more. Upgraded professional data analysis software: view, save, and export images and temperature data even offline. Enhanced the Razor X image algorithm, reducing background noise by approximately 20% and achieving a frame rate of 25Hz, ensuring smooth performance even during fast movements. All Thermal Master devices now support up to 15x digital zoom for pinpoint accuracy when locating faults. As a global leader in smartphone thermal imaging, Thermal Master is committed to creating smarter and sharper thermal cameras. We hold the largest number of smartphone thermal imaging patents worldwide and offer lifetime free software updates for all products.
Screenshots
Verdict
The clearest difference is review sentiment: Overkill Solar at 100% against Temp Master's 40%. Overkill Solar also leads on rating (4.7 vs 3.2). Temp Master's advantage is update cadence (every 5 weeks vs every 4 months) and iOS requirement (11.0 vs 13.4). 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, 4.7 against 3.2. Both are backed by a comparable volume of ratings — 16 and 12 respectively. Written reviews point the same way: 100% of Overkill Solar's written reviews are positive against 40% of Temp Master's.
Overkill Solar ships an update every 4 months, Temp Master every 5 weeks. The most recent releases landed on August 18, 2026 and August 9, 2026 respectively.
| Parameter | Overkill Solar | Temp Master |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (16 ratings) — better | 3.2 (12 ratings) |
| Positive reviews | 100.0% of reviews — better | 40.0% of reviews |
| Number of ratings | 16 — better | 12 |
| Update frequency | Every 4 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 | 11.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Overkill Solar LLC | Thermal Master Technology Co.,Ltd. |
Customer experience
Overkill Solar
Temp Master
In-app purchases
Overkill Solar
No in-app purchases
Temp Master
No in-app purchases









