Comparison

Calc vs calculator DUO

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

Head to head
About

Calc

Features
Read full description

Key features * Basic Calculator: Perform everyday arithmetic calculations. * Scientific Calculator: Solve advanced math problems of trigonometry, algebra, and more. * Unit Conversions: Quickly convert between units for length, weight, temperature, and more. * Intuitive Interface: Easy-to-use design that works for both simple and complex tasks. * Easy Edits: Tap and delete any number without clearing the entire calculation. * Free and Accessible: Use all the features for FREE. Made a mistake while doing a large calculation? No need to clear the whole screen for a small mistake! Fix any part of your calculation without starting over and save time. The Basic + scientific calculator is designed to make all your calculations faster and easier. With a sleek, user-friendly interface, it's perfect for both simple and complex tasks. All-in-One Calculator Basic Calculator: Quickly perform everyday math like addition, subtraction, multiplication, and division. Scientific Calculator: Access a full range of advanced functions, including trigonometry (sine, cosine, tangent), logarithms, exponents, square roots, factorials, and more. Fraction Calculator: Solve fraction problems with simple input for numerators and denominators. Percentage Calculator: Find the percentage of any number with ease. Unit Conversion Made Easy Currency Converter: Get up-to-date exchange rates and convert currencies instantly. Unit Conversions: Convert between units in Area, Length, Mass, Velocity, Temperature, Time, Volume, and more. Why You’ll Love This App > The app's draggable and resizable interface makes it ideal for performing fast math with just one hand. > Tap and hold the calculator area to activate quick actions. > Review your past calculations at any time using the built-in history. > Quickly erase a single digit by swiping over the numbers. Where It Helps > Students and educators who need a scientific calculator for math and physics. > Engineers, architects, and professionals who rely on precise unit conversions. > Anyone who needs to perform quick, everyday math or conversions while on the go. Free & Premium Options All core features are available for free, no need to pay. Enjoy an uninterrupted, ad-free experience with the Premium Plan. Simple or advanced, calculate with ease! Download the calculator app Now. Subscription plan: Get access to ads free calculations with a subscription plan. Your payment will be charged to your iTunes Account at confirmation of purchase. Secondly, your subscription will renew automatically, but you can turn off auto-renewal by accessing your Account Settings 24 hours before the end of the current period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact us at: zsmapps2024@gmail.com

About

calculator DUO

This utility app allows for comfortable one-handed calculations by letting you reposition the keypad. It also provides features to save and reuse past answers, correct input with a swipe, and handle both everyday and scientific calculations, including date and time functions.

Highlights
  • One-handed keypad repositioning
  • Save and reuse past answers
  • Swipe to delete/correct input
  • Everyday and scientific functions
  • Date and time calculations
  • Customizable themes and display
Features
Read full description

Calculate comfortably with one hand. Put past answers to work. Move the keypad within thumb reach, reuse saved results with a tap, and swipe to correct your input. Handle everyday math, scientific functions, dates and time in one place. WITHIN THUMB REACH Move and resize the left- or right-hand keypad to suit your grip. KEEP THE ANSWERS YOU NEED Save useful results on a visual shelf. Tap to reuse them, recall your last answer, or search your calculation history and mark favorites. CORRECT INPUT WITH CONFIDENCE Swipe to delete a digit or function. The deleted content stays visible until your next input; tap the return button to undo the deletion. FROM EVERYDAY TO SCIENTIFIC Use arithmetic, percentages, powers, roots, logarithms and trigonometric functions. Long-press a result for a large display, with adjustable text, color, font and size. MAKE IT YOURS Five themes, optional digit grouping and an interface in 50 languages. No account is required. Expressions, saved results and calculation history are stored on your device. DATES AND TIME, TOO Find the time between two dates, add or subtract days and hours, and calculate across time zones. The free app may show banner ads. Remove Ads is an optional one-time purchase, with purchase restoration through the same Apple Account.

Screenshots

Calc4 screens
calculator DUO4 screens

Verdict

The call

Calc and calculator DUO are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Calc sells 1 one-off in-app purchase and calculator DUO sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Calc versus calculator DUO: the parameters behind the verdict, then further details
ParameterCalccalculator DUO
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequency—Every 10 days
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.5
Further details — not scored
Size4 MB18 MB
Age rating4+4+
DeveloperZain Saeed MughalWenbin lei

In-app purchases

1 purchases

Calc

One-time1
  • Remove Ads$2.99
1 purchases

calculator DUO

One-time1
  • Remove Ads$1.99

Questions

Is Calc free?
Calc is free to download, with in-app purchases available.
Is calculator DUO free?
calculator DUO is free to download, with in-app purchases available.
Do Calc or calculator DUO have ads?
Both Calc and calculator DUO show ads.

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