Fluke iSee vs FernCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fluke iSee
This application connects to a thermal camera accessory to measure temperature and perform thermal imaging detection on your smart device. It's useful for inspections, field observations, and even educational purposes, revealing the hidden world of temperature.
- Real-time temperature measurement
- Thermal imaging detection
- Connects via Lightning interface
- Portable and on-the-go use
- Suitable for inspections and education
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Using Fluke iSee™ IOS application with the Fluke iSee™ Mobile Thermal Camera - TC01B, temperature can be measured and thermal imaging detection can be carried out anytime and anywhere just through the Lightning interface of smart devices. It is widely used in the electrical and mechanical equipment inspection, outdoor detection service, household HVAC inspection, field observation, and even children education, which uncovers the invisible world of temperature.
FernCalc
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FernCalc — Beautifully Simple. Surprisingly Powerful. A calculator should be beautiful, dependable, and enjoyable to use. FernCalc combines an elegant everyday calculator with a powerful scientific mode—all in one thoughtfully designed app. Whether you're balancing expenses, working through everyday calculations, or exploring more advanced mathematics, FernCalc gives you the tools you need without unnecessary clutter. STANDARD MODE Everything you need for everyday calculations: • Addition, subtraction, multiplication, and division • Percentage calculations • Large, easy-to-read results • Automatic thousands separators • Backspace and clear functions • Repeated calculations using the equals button SCIENTIFIC MODE Go beyond basic arithmetic with: • Trigonometric functions: sine, cosine, and tangent • Inverse trigonometric functions • Degrees and radians • Powers, squares, and square roots • Logarithmic and natural logarithmic functions • Exponential calculations • Mathematical constants π and e • Parentheses and order of operations • Clearly displayed mathematical expressions DESIGNED TO BE DIFFERENT FernCalc features a distinctive deep-emerald interface, elegant gold accents, responsive controls, and a carefully crafted layout. Switch effortlessly between Standard and Scientific modes whenever your calculations demand more. THE FERNIQUE PROMISE • No advertisements • No subscriptions • No in-app purchases • No tracking or analytics • No accounts required • No hidden fees Just a beautiful, capable calculator that respects you. FernCalc by Fernique LLC. Thoughtfully designed. Simply useful.
Screenshots
Verdict
The clearest difference is update cadence: FernCalc at every 2 months against Fluke iSee's every 4 months. Fluke iSee's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price, 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.
Fluke iSee ships an update every 4 months, FernCalc every 2 months. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.
| Parameter | Fluke iSee | FernCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (24 ratings) — better | — |
| Positive reviews | 8.3% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 58 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 福禄克测试仪器(上海)有限公司 | Fernique LLC |
In-app purchases
Fluke iSee
No in-app purchases
FernCalc
No in-app purchases









