Thermal Pro vs VoltKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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.
VoltKit
Read full descriptionHide full description
VoltKit is the fast, no-nonsense electrical calculator built for the field. VOLTAGE DROP — Single-phase, three-phase and DC. AWG or mm², feet or meters, copper or aluminum. Instant pass/fail against the 3% / 5% guidelines, with the recommended minimum conductor size. WIRE SIZE (Pro) — Enter load, distance and voltage. Get the minimum conductor that satisfies BOTH voltage drop and ampacity, with each constraint shown separately. OHM'S LAW & POWER — Enter any two values, get the rest. Power factor supported for AC. WHY ELECTRICIANS CHOOSE VOLTKIT • 100% offline — no account, no ads, no tracking, no permissions • Shows the math — every result includes the formula with your values plugged in • Built for the field — dark, glove-friendly, instant results as you type • One-time purchase — Pro is yours forever, no subscription COMING IN FREE UPDATES FOR PRO USERS Ampacity with derating, conduit fill, box fill, motor calculations, EV charger circuit sizing. Results are estimates for reference only. Always verify with the current edition of applicable codes and a licensed professional. National Electrical Code® and NEC® are registered trademarks of the National Fire Protection Association, which is not affiliated with this app.
Screenshots
Verdict
The clearest difference is in-app purchases: Thermal Pro at none against VoltKit's 1. Thermal Pro also leads on iOS requirement (12.0 vs 16.4). 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
Both are free to download. VoltKit sells 1 one-off in-app purchase. Thermal Pro asks for nothing beyond the download.
| Parameter | Thermal Pro | VoltKit |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 28 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Leagend Optoelectronics Co., Ltd. | Kenan Islamoglu |
In-app purchases
Thermal Pro
No in-app purchases
VoltKit
- VoltKit Pro$4.99









