Comparison

Unit Converter and Calc vs UnitDeck

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

Head to head
About

Unit Converter and Calc

This app offers a comprehensive suite of conversion tools for everyday needs, including units of length, weight, temperature, and currency. It also functions as a scientific and arithmetic calculator, with specialized calculators for age, EMI, BMI, and more.

Highlights
  • Unit conversion for length, weight, temperature, volume, time
  • Scientific and arithmetic calculator
  • Real-time currency and cryptocurrency converter
  • Age, EMI, BMI, Percentage, GST calculators
  • History display for previous calculations
  • Floating calculator for multitasking
Features
Read full description

Quick, easy, free unit calculator for your daily operations. This Unit Converter and Calc converts between common units of length, area, temperature, volume, weight, time, and many more. Super Unit Calculator is an easy-to-use calculator for your day-to-day needs with the ability to convert most of the units according to your needs. With this stupendous calculator converting any unit is very easy. You just need to select the unit and enter the value. Key Features of this all-in-one Unit Calculator: • Scientific/Arithmetic Calculator: Best Simple Calculator supports the basic arithmetic operation such as addition, subtraction, multiplication, and division • Unit Converter: Simple, smart and elegant tool for easy conversion of length, area, weight, temperature, currency, time, volume, speed, distance and much more Powerful calculator for converting all the currencies and measures • Currency Converter: Real-time live currency converter and calculator for converting a value from one currency to another • Age Calculator: Just enter your accurate date of birth to calculate your exact age. Also, count the number of days between two dates. • EMI Calculator: By calculating your EMI and viewing your payment schedule, you can efficiently plan your loan repayment. • Crypto Currency Converter: Real-time Cryptocurrency Converter helps you convert all Cryptocurrencies like Bitcoin, DOGE, ETH to your desired Currencies like USD, EUR, and many more. • SIP Calculator: Plan your SIP investments by calculating the future value of SIP Payments. Using a projected annual return rate, estimate the maturity amount of any monthly SIP. • BMI Calculator: Calculate your body mass index and determine your body status based on your height and weight. • Percentage Calculator: Make your calculation more faster by counting Simple Percentage, as well as Result, Discount, Tip and Profit Margin Percentage in one click. • GST Calculator: By choosing amount of GST rate, quickly calculate GST on sales or purchase of goods or services. • Switch modes by Swipe: Simply switch the modes by swiping between Standard mode and Scientific mode • Trigonometric functions: Perform scientific operations like trigonometric, logarithmic, and exponential functions • History display: Want to see previous calculations? History display provides you functionality by which you can watch previous calculations • Floating calculator: Your go-to calculator for quick algebraic operations. This calculator stay in front of all the running applications so you can interact with any content behind it • Combination of operators: Allows you to combine many operators in one expression. Simply solve any complicated equations in no time • Easy edit: If you want to change or add any operators/numbers, you can easily edit any functions in between the formula

About

UnitDeck

Features
Read full description

UnitDeck is a fast unit converter and practical calculation toolbox built for real work. Choose your industry and UnitDeck places the conversions you use most on your Home screen. Convert common and specialist units, search by name or symbol, save favorites, keep conversion records, and add simple work notes without digging through long menus. BUILT AROUND YOUR WORK • Industry profiles for trade, logistics, construction, textiles, manufacturing, furniture, electrical work, HVAC, agriculture, energy, marine work, automotive work, and more • 121 conversion categories covering everyday and professional measurements • 25 practical trade calculators for common field and desk workflows • Search by unit name, symbol, or abbreviation • Favorites, recents, saved conversions, notes, configurable precision, and inch fractions FAST AND PRIVATE • Conversion inputs, saved records, and notes stay on your device • No account required • No advertising or cross-app tracking • Core conversion tools work offline UNITDECK PRO The free version includes a useful set of common conversions, tools recommended for your first industry, and limited previews of professional categories. UnitDeck Pro unlocks the complete professional toolbox with one lifetime purchase. It is not a subscription and does not auto-renew. Conversion results are provided for general information, estimation, and workflow assistance. Verify safety-critical, contractual, engineering, medical, financial, or regulated work against applicable standards and qualified professional guidance.

Screenshots

Unit Converter and Calc4 screens
UnitDeck4 screens

Verdict

The call

The clearest difference is in-app purchases: Unit Converter and Calc at none against UnitDeck's 1. Unit Converter and Calc also leads on iOS requirement (15.6 vs 17.0). UnitDeck's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On price 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. UnitDeck sells 1 one-off in-app purchase. Unit Converter and Calc asks for nothing beyond the download.

UpkeepUpdate frequency

Unit Converter and Calc ships an update every 2 months, UnitDeck every 2 weeks. The most recent releases landed on October 1, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 6 level
Unit Converter and Calc versus UnitDeck: the parameters behind the verdict, then further details
ParameterUnit Converter and CalcUnitDeck
PriceFreeFree
Rating4.8 (4 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size31 MB3 MB
Age rating4+4+
DeveloperQtonz infosoft private limited建辉 刘

In-app purchases

None

Unit Converter and Calc

No in-app purchases

1 purchases

UnitDeck

One-time1
  • UnitDeck Pro – Lifetime$3.99

Questions

Is Unit Converter and Calc free?
Unit Converter and Calc is free to download, with no in-app purchases.
Is UnitDeck free?
UnitDeck is free to download, with in-app purchases available.
Do Unit Converter and Calc or UnitDeck have ads?
Unit Converter and Calc shows ads; UnitDeck does not.
Which is updated more often, Unit Converter and Calc or UnitDeck?
Unit Converter and Calc ships an update every 2 months, and UnitDeck every 2 weeks. Most recently, Unit Converter and Calc was updated on October 1, 2026 and UnitDeck on October 19, 2026.

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