calcDS vs HeatSight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
calcDS
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The Last Calculator you will ever need. Perfect choice for scientists, engineers and programmers.featuring standard mathematic functions, as well as a full 64bit binary calculator with displays in Binary, Octal, Decimal and Hexadecimal. There are no IN-APP purchases or annoying ads ever
HeatSight
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FEATURES • Real-time thermal imaging via WiFi (UDP/TCP) • 5 color palettes: Ironbow, Rainbow, White Hot, Black Hot, Lava • Touch anywhere to read exact temperature • Hot/cold spot auto-tracking • Anomaly detection highlights unusual temperatures • GPU-accelerated upscaling (1x–8x) with edge-aware sharpening • Frame averaging for noise reduction • Radiometric snapshots — save and re-analyze thermal data • CSV export for data analysis • Recording and playback • Celsius/Fahrenheit with emissivity presets • Temperature reference guide for home inspection, electrical, HVAC • Battery level monitoring • Works without hardware in Demo Mode REQUIREMENTS • Waveshare ESP32-S3 Thermal Camera Module • Custom firmware (open source, included on GitHub) • WiFi connection to the ESP32 module
Screenshots
Verdict
The clearest difference is price: HeatSight at Free against calcDS's $1.99. calcDS's advantage is iOS requirement (14.0 vs 26.1). On ads, in-app purchases 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
HeatSight is free to download; calcDS costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | calcDS | HeatSight |
|---|---|---|
| Price | $1.99 | Free — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 3 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | R.David Sisemore | Taylor Galbraith |
In-app purchases
calcDS
No in-app purchases
HeatSight
No in-app purchases
Questions
Is calcDS free?
Is HeatSight free?
Do calcDS or HeatSight have ads?
Other comparisons
