Comparison

Fluke iSee vs FernCalc

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

Head to head
About

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.

Highlights
  • Real-time temperature measurement
  • Thermal imaging detection
  • Connects via Lightning interface
  • Portable and on-the-go use
  • Suitable for inspections and education
Read full description

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.

About

FernCalc

Features
Read full description

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

Fluke iSee3 screens
FernCalc1 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Fluke iSee versus FernCalc: the parameters behind the verdict, then further details
ParameterFluke iSeeFernCalc
PriceFreeFree
Rating1.8 (24 ratings) — better—
Positive reviews8.3% of reviews—
Number of ratings24 — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better16.0
Further details — not scored
Size58 MB2 MB
Age rating4+4+
Developer福禄克测试仪器(上海)有限公司Fernique LLC

In-app purchases

None

Fluke iSee

No in-app purchases

None

FernCalc

No in-app purchases

Questions

Is Fluke iSee free?
Fluke iSee is free to download, with no in-app purchases.
Is FernCalc free?
FernCalc is free to download, with no in-app purchases.
Do Fluke iSee or FernCalc have ads?
Neither Fluke iSee nor FernCalc shows ads.
Which is updated more often, Fluke iSee or FernCalc?
Fluke iSee ships an update every 4 months, and FernCalc every 2 months. Most recently, Fluke iSee was updated on November 3, 2026 and FernCalc on November 6, 2026.

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