Thermal Master vs FNIRSI+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thermal Master
This utility app connects to specific thermal camera models, offering enhanced thermal imaging capabilities. It features an upgraded algorithm for clearer heat source detection and supports digital zoom for precise target identification. The app provides lifetime free software upgrades.
- Connects to P, X, DV, and T2Max series thermal cameras
- Upgraded Insight+ algorithm for noise suppression
- Enhanced heat source visibility
- Up to 15x digital zoom
- Lifetime free software upgrades
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Thermal Master is the global leader in phone thermal imaging, with a decade of experience and 8 world records. This all-in-one thermal camera and night vision app works with the P Series (P1/P2 Pro/P3) phone thermal cameras, the foldable-screen birdwatching thermal imagers DV2 and DV3, and the outdoor night-vision phone thermal cameras T2 Max, X2. As the only thermal imaging brand to win a Tom's Guide AI Award, and recognized by Forbes, NotebookCheck, and TechRadar, Thermal Master keeps pushing thermal imaging technology to be smaller, sharper, and smarter — with free lifetime software upgrades on every device. What's New in This Update: - Insight+ 4.0 imaging algorithm: AI adapts to different environments, better distinguishes real heat sources from summer-heat false targets, and reduces background noise. - Super Birdwatching 4.0: an industry-first algorithm that suppresses the thermal "sky effect" over tree canopies, making birds easier to spot with this thermal bird finder. - Sky Guard 3.0: intelligent sun-damage protection for the thermal detector. - Razor-Sharp X³ imaging algorithm: sharper, more defined edges on subtle heat sources. - TruePix temperature measurement algorithm: refined calibration for targets with different reflectivity. - Shutterless technology: continuous thermal observation with no shutter interruption. Choose the right app for your device: this "Thermal Master" app supports P1/P2/P2 Pro/P3/P3 Lite/T2 Max/X2/DV2/DV3.
FNIRSI+
This application allows users to control and manage specific equipment. It provides a straightforward and efficient user experience for device interaction.
- Equipment control
- Device 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 rating: Thermal Master at 2.7 against FNIRSI+'s 1.0. Thermal Master also leads on ratings volume (19 vs 1). On price, update cadence, 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.
Thermal Master holds the better App Store score, 2.7 against 1.0. That said, the two scores are not equally well evidenced: Thermal Master has 19 ratings behind it against 1, so its average is the more settled of the two.
Thermal Master ships an update every 3 weeks, FNIRSI+ monthly. Both last shipped on October 25, 2026.
| Parameter | Thermal Master | FNIRSI+ |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (19 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 30.8% of reviews | — |
| Number of ratings | 19 — better | 1 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 191 MB | 40 MB |
| Age rating | 17+ | 4+ |
| Developer | Thermal Master Technology Co.,Ltd. | Shenzhen FNIRSI Technology Co., Ltd. |
In-app purchases
Thermal Master
No in-app purchases
FNIRSI+
No in-app purchases
Questions
Is Thermal Master free?
Is FNIRSI+ free?
Which has better reviews, Thermal Master or FNIRSI+?
Do Thermal Master or FNIRSI+ have ads?
Which is updated more often, Thermal Master or FNIRSI+?
Other comparisons
