Unit Converter vs Thermal Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit Converter
Easily convert measurements between various units with a clean and intuitive interface. Supports over 20 categories including length, mass, temperature, and volume.
- Converts between units
- Supports 20+ categories
- Clean interface design
- Intuitive navigation
- Free to use
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A simple but elegant Free Unit Converter. Convert the numbers from one unit to another. The goal of this application to make it simple to use with clean interface design. Application supports 20 different categories which includes : * Acceleration * Angle * Area * Bytes * Current * Energy * Force * Illumination * Inductance * Length * Magnitude * Mass * Power * Pressure * Radiation * Temperature * Time * Torque * Velocity * Volume Tip: Quickly move to the different category by tapping on category name.
Thermal Viewer
Analyze radiometric thermal images directly on your iPhone, iPad, or Mac. This app supports various thermal image formats and offers detailed temperature analysis, including spot, box, and ellipse measurements. It allows for live re-analysis and export of data and settings, all while keeping your images private and offline.
- Analyze radiometric thermal images
- Supports multiple thermal file formats
- Tap to read exact temperature
- Add spot, box, ellipse, and line measurements
- Live re-analysis with adjustable parameters
- Visible-light blend and MSX-style overlay
- Export temperature matrix to CSV
- Batch export of images and settings
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Thermal Viewer opens and analyzes radiometric thermal images right on your iPhone, iPad, and Mac. No Windows PC, no camera accessory, and no account. Searching for "FLIR Tools for Mac" or a SmartView alternative? This is the native app you have been missing. FLIR discontinued its Mac software and Fluke's mobile viewer is no longer maintained. Thermal Viewer fills that gap, fully offline. WORKS WITH • FLIR radiometric JPEG: E-series, T-series, Cx, FLIR ONE, CAT phones • Fluke IS2 files • Radiometric TIFF (ResearchIR, Vue / Duo Pro R) • InfiRay / P2 Pro thermal JPEG • DJI thermal JPEG (image and capture parameters) • Plain thermal JPEGs EVERY PIXEL IS A TEMPERATURE Tap anywhere to read the exact temperature. Add spot, box, ellipse and line measurements with min / avg / max, and Delta-T between any two of them. PROFESSIONAL ANALYSIS • 8 color palettes plus your camera's own palette • Level/span with histogram, isotherms, automatic hot and cold markers • Live re-analysis: change emissivity, reflected temperature and distance, and temperatures recompute instantly • Visible-light blend, picture-in-picture, and MSX-style edge overlay • °C / °F / K • Full camera, lens, GPS and parameter inspector EXPORT & BATCH • Export the full temperature matrix to CSV • Export rendered images (PNG) and reproducible analysis settings (JSON) • Hotspot Triage: scan a whole folder and flag every image above your threshold • Batch export PRIVATE BY DESIGN Everything runs on your device. Your images never leave your phone: no cloud, no account, no tracking. Thermal Viewer is an independent app and is not affiliated with, endorsed by, or sponsored by FLIR, Teledyne, Fluke, DJI, or InfiRay. Brand names are used only to indicate supported file formats. Privacy Policy: https://rush.tools/privacy Terms of Use: https://rush.tools/terms
Screenshots
Verdict
The clearest difference is review sentiment: Thermal Viewer at 50% against Unit Converter's 0%. Thermal Viewer also leads on rating (5.0 vs 1.0) and update cadence (every 6 days vs every 28 months). Unit Converter's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 15.0). On price, ratings volume, 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
Both are free to download. Thermal Viewer sells 3 in-app purchases, starting at $4.99 per 7 days. Unit Converter asks for nothing beyond the download.
Thermal Viewer holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 0% of Unit Converter's written reviews are positive against 50% of Thermal Viewer's.
Unit Converter ships an update every 28 months, Thermal Viewer every 6 days. The most recent releases landed on October 11, 2026 and October 28, 2026 respectively.
| Parameter | Unit Converter | Thermal Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 28 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 30 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Dipen Patel | Rush Tools LLC |
Customer experience
Unit Converter
Thermal Viewer
In-app purchases
Unit Converter
No in-app purchases
Thermal Viewer
- Pro Weekly3 Days trial$4.997 Days
- Pro Yearly$29.991 Year
- Lifetime Access$49.99
Questions
Is Unit Converter free?
Is Thermal Viewer free?
Which has better reviews, Unit Converter or Thermal Viewer?
Do Unit Converter or Thermal Viewer have ads?
Which is updated more often, Unit Converter or Thermal Viewer?
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