Comparison

Thermal Pro vs SealProof

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Thermal Pro

This portable thermal imager converts object heat radiation into images and temperature data. It offers high-resolution thermal imaging, real-time temperature measurement, and various display modes. Users can record videos, set alarms, and generate detailed analysis reports.

Highlights
  • 256x192 pixel infrared resolution
  • Real-time high-definition thermal imaging
  • Temperature range -20℃ to 550℃
  • Thermal imaging, fusion, and picture-in-picture modes
  • Real-time temperature sound/light alarms
  • Temperature measurement analysis reports
  • Video recording and playback
Features
Read full description

The mobile phone thermal imager is a portable thermal imaging product of long-wave infrared (8~14μm, LWIR), which can convert the thermal radiation of the measured object into images and temperature data. Main functions: 1. Supports ultra-high infrared resolution of 256X192 pixels, and displays thermal images in real time and high definition through 25Hz high frame rate. 2. Supports measurement of the full temperature range of -20℃~550℃ (-4℉~1022℉), and can accurately detect temperature changes of 0.1℃(32.18℉). 3. Supports real-time image photography and video recording, and can set the maximum\minimum\center temperature value display of point, line, and surface areas at any position on the image. 4. Supports thermal imaging\fusion\picture-in-picture mode switching, combining infrared images and visible light images. 5. Supports real-time temperature sound/light alarm, and can customize high or low temperature alarm values ​​and alarm modes. 6. Support real-time temperature waveform monitoring, you can set points, lines, and surface areas at any position on the image for temperature monitoring, automatically save temperature monitoring videos, support video playback and excel table data export. 7. Support the generation of temperature measurement analysis reports, you can select any photo in the album to generate a PDF report, and support PDF report sharing.

About

SealProof

Features
Read full description

SealProof runs a timed pressure or leak hold and turns it into an automatic pass or fail you can hand over. Start the hold from your Apple Watch or iPhone. Interval haptics keep time while you watch the elapsed against the required hold, then log the end reading on your wrist. SealProof compares the start and end readings against your tolerance, flags the pressure-drop rate against a code threshold, and produces a pass or fail certificate you can share on the spot. What it does: - Run a timed pressure or leak hold from the wrist with interval haptics and a big go/stop - Enter start and end readings for an automatic pass or fail against your tolerance - Pressure-drop rate flagged against a code threshold - Code-set presets for common durations and pressures (plumbing, gas, HVAC) - Per-asset test history you can trust, with pass rate and trend - Pass or fail certificate PDF handed over on the spot - Temperature note and optional correction so cooling is not read as a leak - Syncs across iPhone, iPad, and Apple Watch with your private iCloud Free: run and log timed tests for one asset. Pro (one-time unlock): unlimited assets, the code-set presets, certificate export, full history, and private iCloud sync. One payment, yours forever, no subscription. Your record stays private to you, on your devices and in your personal iCloud. No accounts, no analytics, no tracking. SealProof records the readings you enter. A certificate is a field record, not an inspection sign-off or a guarantee of code compliance.

Screenshots

Thermal Pro4 screens
SealProof4 screens

Verdict

The call

The clearest difference is in-app purchases: Thermal Pro at none against SealProof's 1. Thermal Pro also leads on iOS requirement (12.0 vs 18.0). SealProof's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SealProof sells 1 one-off in-app purchase. Thermal Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Thermal Pro ships an update every 4 months, SealProof every 2 weeks. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Thermal Pro versus SealProof: the parameters behind the verdict, then further details
ParameterThermal ProSealProof
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS12.0 — better18.0
Further details — not scored
Size28 MB9 MB
Age rating4+4+
DeveloperShenzhen Leagend Optoelectronics Co., Ltd.InnovaLabWorks

In-app purchases

None

Thermal Pro

No in-app purchases

1 purchases

SealProof

One-time1
  • Lifetime Unlock$49.99

Questions

Is Thermal Pro free?
Thermal Pro is free to download, with no in-app purchases.
Is SealProof free?
SealProof is free to download, with in-app purchases available.
Do Thermal Pro or SealProof have ads?
Neither Thermal Pro nor SealProof shows ads.
Which is updated more often, Thermal Pro or SealProof?
Thermal Pro ships an update every 4 months, and SealProof every 2 weeks. Most recently, Thermal Pro was updated on October 24, 2026 and SealProof on October 24, 2026.

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