Comparison

Calculator⁼ vs X123 Calculator with memory

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

Head to head
About

Calculator⁼

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Highlights
  • Basic & Scientific Calculator
  • Live Currency Converter
  • History Tape
  • Equation Edit Function
  • Degrees or Radians Calculation
  • Memory Banks
Features
Read full description

Calculator is a clean, easy-to-use calculator app for everyday math and more. It handles basic calculations and scientific functions when you need them and keeps a history of your past results so you can quickly go back and check or reuse them. With its classic design, it feels familiar and straightforward—perfect for quick sums at work, school, or home. AVAILABLE FOR FREE • Basic & Scientific Calculator • Great Visibility; Big buttons for easy calculations • Live Currency Converter; get exchange rate prices • History Tape; Track all calculations, taxes, and expenses • Equation edit function • Calculate with Degrees or Radians • Memory Banks • Choose your Decimal Notation • Set the Number of Decimals • Available in 12 languages • Made for iPad & iPhone • Support Split View & Dark Mode BASIC AND SCIENTIFIC Rotate your device to access all scientific buttons. Or if you prefer calculating in portrait mode, simply swipe left. YOUR EXPERIENCE IS IMPORTANT TO US! As your experience is important to us, we’re happy with your feedback, questions, and suggestions. Please share any support as our team is always ready to help via support@impalastudios.com Mathematical Operations Addition, Subtraction, Division, Multiplication, Percentages, Square, Cubic Exponent, Nth Exponent, Square Root, Cubic Root, Nth Root, Engineering Exponent, Factorial, Power of Two, Power of Ten, Power of E, Natural Logarithm, Common Logarithm, Binary Logarithm, Sine, Cosine, Tangent, Arc Sine, Arc Cosine, Arc Tangent, Hyperbolic Sine, Hyperbolic Cosine, Hyperbolic Tangent, Hyperbolic ArcSine, Hyperbolic Arc Cosine, Hyperbolic ArcTangent, Multiplicative Inverse, Random Number Input LOVING CALCULATOR? Please show your support by rating us! Thank you. Calculator (C) 2011 Impala Studios Terms & Conditions: https://impalastudios.com/terms Privacy Policy: https://impalastudios.com/privacy

About

X123 Calculator with memory

This free calculator app offers basic and scientific functions, memory storage, and time calculations. Customize its appearance and layout for enhanced efficiency in everyday tasks and complex computations.

Highlights
  • Basic and scientific calculations
  • Value memory function
  • Time calculation with NOW key
  • Landscape and dark modes
  • Dual keyboards in landscape
  • Advanced key customization
Features
Read full description

Discover X123 your new calculating companion! Free and super-easy to use, X123 is the ideal calculator for your everyday calculations. Customize it the way you like and discover super-practical features to boost your efficiency like value memory, time calculation and landscape mode. BASIC CALCULATIONS With X123, switch easily from addition, to subtraction, multiplication, and division. Perfect for all your everyday needs! SCIENTIFIC CALCULATOR Find your arithmetic, trigonometric, logarithmic and exponential calculation options accessible at your fingertips. MEMORY FUNCTION Keep your favorite results and values at hand and reuse them at any time to simplify your most complex or frequent calculations. TIME CALCULATION Manage your time calculations with simplicity and insert the current time into your calculations with a simple click of the NOW key. FREE CALCULATOR Take unlimited advantage of all X123's calculation options, an entirely free calculator! LANDSCAPE MODE Switch to horizontal mode for enhanced visual and calculating comfort. DARK MODE Switch from light to dark mode in the blink of an eye and adapt your calculator's display to your preferences or ambient lighting. DUAL KEYBOARDS In landscape mode, display two keyboards simultaneously for double the efficiency! Choose from the options: Basic, Memory, Functions, and Time. ADVANCED CUSTOMIZATION Tailor your calculator: rearrange keys, rename them, choose your rounding, select language and writing standard. Make X123 an integral part of your everyday life. X123, your future essential, whether for work or everyday use!

Screenshots

Calculator⁼4 screens
X123 Calculator with memory4 screens

Verdict

The call

The clearest difference is review sentiment: X123 Calculator with memory at 100% against Calculator⁼'s 36%. X123 Calculator with memory also leads on ads (none vs shown) and rating (5.0 vs 4.6). Calculator⁼'s advantage is ratings volume (359K vs 2). On price, in-app purchases, monetization model 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. Calculator⁼ sells 8 in-app purchases, starting at $0.49 per 7 days and X123 Calculator with memory sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

X123 Calculator with memory holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Calculator⁼ has 359K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 36% of Calculator⁼'s written reviews are positive against 100% of X123 Calculator with memory's.

UpkeepUpdate frequency

Calculator⁼ ships an update monthly, X123 Calculator with memory fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator⁼ versus X123 Calculator with memory: the parameters behind the verdict, then further details
ParameterCalculator⁼X123 Calculator with memory
PriceFreeFree
Rating4.6 (359K ratings)5.0 (2 ratings) — better
Positive reviews35.6% of reviews100.0% of reviews — better
Number of ratings359K — better2
Update frequencyMonthlyFortnightly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.4 — better
Further details — not scored
Size159 MB20 MB
Age rating4+4+
DeveloperImpala StudiosBotto Ingenierie Informatique

Customer experience

Calculator⁼

All ratings358,262 ratings
Positive91.4%
Neutral3.7%
Negative4.9%
Written reviews808 reviews
Positive35.6%
Neutral6.8%
Negative57.5%

X123 Calculator with memory

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Calculator⁼

Reported bugs

3 issues
  • History not always showing all entries
  • Ads covering up parts of the screen
  • Inability to close full-screen ads

Requested features

4 requests
  • Add fraction button
  • Option to clear calculation history
  • Ability to copy/paste results
  • Customizable layout and themes

X123 Calculator with memory

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Calculator⁼

Subscriptions6
  • Weekly Premium Access3 Days trial$0.497 Days
  • Monthly full access3 Days trial$1.991 Month
  • Weekly Premium Access3 Days trial$1.997 Days
Show 3 more
  • Limited Time Offer$4.991 Year
  • Premium Yearly3 Days trial$5.991 Year
  • Annual Premium Access$9.991 Year
One-time2
  • Retro Theme Calculator'$0.99
  • Lifetime Full Access$14.99
1 purchases

X123 Calculator with memory

One-time1
  • Ads removal$3.99

Questions

Is Calculator⁼ free?
Calculator⁼ is free to download, with in-app purchases available.
Is X123 Calculator with memory free?
X123 Calculator with memory is free to download, with in-app purchases available.
Which has better reviews, Calculator⁼ or X123 Calculator with memory?
X123 Calculator with memory is rated higher. Calculator⁼ averages 4.6 out of 5 from 359K ratings, while X123 Calculator with memory averages 5.0 from 2 ratings.
Do Calculator⁼ or X123 Calculator with memory have ads?
Calculator⁼ shows ads; X123 Calculator with memory does not.
Which is updated more often, Calculator⁼ or X123 Calculator with memory?
Calculator⁼ ships an update monthly, and X123 Calculator with memory fortnightly. Most recently, Calculator⁼ was updated on November 3, 2026 and X123 Calculator with memory on October 30, 2026.

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