Comparison

FEUrea vs Calculator for Complex Field

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

Head to head
About

FEUrea

Features
Read full description

**FEUrea – Ratio Calculator** Calculate ratios, percentages, and numerical values quickly and easily with FEUrea – Ratio Calculator. A simple, fast, and intuitive calculation tool designed to make everyday numerical calculations effortless. Whether you need to calculate a ratio, work with percentages, convert between supported units, or compare numerical values, FEUrea provides a straightforward way to get results in seconds. **KEY FEATURES** **Ratio Calculator** Enter four numerical values and instantly calculate a percentage-based ratio using a predefined formula. No complicated steps or manual calculations required. **Percentage Calculator** Get fast and accurate percentage results based on your entered values. Easily review and update your calculations whenever needed. **Unit Converter** Switch between supported measurement units directly within the calculator. Convenient unit selection makes working with different numerical formats simple. **Decimal Number Support** Enter decimal values using a period or comma, with support for Arabic decimal separators and numerals. Enjoy flexible number entry across different regional settings. **Instant Results** Results update automatically as you enter or modify values. No additional calculation button is needed. **Simple and Intuitive Interface** Four clearly organized input fields, convenient unit selection buttons, and an easy-to-read result display make calculations quick and efficient. **ADDITIONAL BENEFITS** - Fast ratio and percentage calculations - Convenient numerical value conversion - Support for multiple decimal separators - Automatic calculations and instant updates - Easy switching between supported units - Clean, straightforward calculator interface - No complicated setup required **SIMPLIFY YOUR CALCULATIONS** FEUrea – Ratio Calculator combines ratio calculations, percentage calculations, and unit conversion in one convenient application. Enter your values, choose the appropriate units, and let the calculator handle the mathematics. Download FEUrea – Ratio Calculator and enjoy fast, simple, and convenient calculations anytime.

About

Calculator for Complex Field

Input natural math expressions and get instant results on a separate line, allowing for easy revisions. Save up to 20 inputs and incorporate saved answers into new expressions. Supports complex field calculations with adjustable decimal digits and three output formats.

Highlights
  • Natural math expression input
  • Automatic result display
  • Input revision for updated results
  • Save and reuse up to 20 inputs
  • Incorporate saved answers into expressions
  • Complex field calculations
  • Adjustable decimal digits
  • Three output formats (Fixed, Scientific, Engineering)
Features
Read full description

Your input to this app will be a natural math expression, and the answer will appear in a separate line. This makes it easy to revise current input to get an updated result. Up to 20 of your inputs will be automatically saved and can be reused later. You can also save your answer and incorporate it into your input expressions later. Undo and redo buttons will help you edit your expressions. All mathematical operations are performed in the complex field. Output will be a real or a complex number depending on your input and the selection is automatic. Three output formats are available for you to select: Fixed point, scientific and engineering. The number of decimal digits is adjustable. Finally, the help and demo buttons will bring you quick and easy usage examples. Current version includes the following math functions: exp, log, log10, sin, cos, tan, sinh, cosh, tanh, asin, acos, atan, asinh, acosh, atanh, abs, angle, real, imag and power (^).

Screenshots

FEUrea4 screens
Calculator for Complex Field4 screens

Verdict

The call

The clearest difference is update cadence: Calculator for Complex Field at fortnightly against FEUrea's every 20 months. FEUrea's advantage is iOS requirement (15 vs 17.0). On price, 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

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

FEUrea ships an update every 20 months, Calculator for Complex Field fortnightly. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 8 level
FEUrea versus Calculator for Complex Field: the parameters behind the verdict, then further details
ParameterFEUreaCalculator for Complex Field
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 20 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15 — better17.0
Further details — not scored
Size11 MB1 MB
Age rating4+4+
DeveloperKrzysztof GwiazdaJongseung Park

In-app purchases

None

FEUrea

No in-app purchases

None

Calculator for Complex Field

No in-app purchases

Questions

Is FEUrea free?
FEUrea is free to download, with no in-app purchases.
Is Calculator for Complex Field free?
Calculator for Complex Field is free to download, with no in-app purchases.
Do FEUrea or Calculator for Complex Field have ads?
Neither FEUrea nor Calculator for Complex Field shows ads.
Which is updated more often, FEUrea or Calculator for Complex Field?
FEUrea ships an update every 20 months, and Calculator for Complex Field fortnightly. Most recently, FEUrea was updated on November 12, 2026 and Calculator for Complex Field on November 4, 2026.

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