Comparison

Calculator Max vs Calculator!!

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

Head to head
About

Calculator Max

This app offers a comprehensive suite of calculation tools, from basic arithmetic to advanced scientific functions. It features a history tape for easy access and reuse of entries, and a unique scribble pad for handwritten notes and equation solving on iPads. Enjoy a clean interface, multitasking support, and customizable themes.

Highlights
  • Basic and scientific calculators
  • History tape with export options
  • Handwritten notes and equation solving
  • Multitasking support on iPad
  • Customizable themes and app icons
  • Home Screen and Lock Screen widgets
Features
Read full description

Calculator Max makes both simple and complex calculations easy. It offers all calculators you’ll ever need in one carefully designed, uncluttered and easy-to-use package. Switching between calculators is buttery-smooth and natural. The basic calculator with big buttons swiftly handles everyday tasks. The more advanced scientific calculator is loaded with all important mathematical functions and constants. A history tape with your entries is comfortably accessible in all calculator modes. Thanks to it, you never lose track of what you’ve entered and the entries can be reused effortlessly in your calculations. The tape can also be exported to common formats and shared or printed. On the large screen of any iPad it is pure joy to make handwriting notes or draw your ideas right in the app. Write down any math equation and let the app calculate it for you in the blink of an eye. Or reuse any handwriting which you can easily convert to editable text. ————————— WHAT YOU GET ————————— /// POWERFUL CALCULATOR /// — Basic calculator with big buttons — Scientific calculator packed with functions and constants — History tape with the calculations at your fingertips in all modes — Extensive rounding options (e.g. two decimal places for accounting) — Up to 5 memory slots for frequent numbers — Plain Text, Monospaced Text, CSV, PDF and image export formats — Advanced export, share and print options — Scribble Pad on iPad for easy math equations solving, handwritten notes and sketches /// PRODUCTIVE WORKFLOW /// — Side tape layouts for easier long records handling — Clean and uncluttered interface with refined haptic feedback — Multitasking support on iPad for side-by-side work — External keyboard support for even faster input and app control — Universal app for all your iPhones, iPads and Macs — User interface precisely adapted for each device capabilities /// FAST ACCESS /// — Home Screen widgets with last calculations and memory — Widgets for direct access from the Lock Screen — Control Center and Lock Screen fast access buttons /// MIGHTY SCRIBBLE PAD /// — The right place for your quick notes and sketches — Easily calculates any written down math equation — Recognizes your handwriting and converts it to editable text — Fully-fledged notebook with unlimited number of paper sheets — Exportable as text, image or PDF — Optimized for your finger as well as Apple Pencil — Support for LAMY and Adonit styluses (on iPad) — Available on all iPad models /// EXTENSIVE CUSTOMIZATION /// — Handcrafted design themes with dark mode support — Loads of app icons you can easily choose from the best one for your Homescreen — Carefully selected sound sets Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Calculator!!

This advanced calculator offers a comprehensive history of your calculations and supports complex functions like fraction manipulation, angle conversions, and equation solving. It also includes specialized tools for engineers and a dice roller.

Highlights
  • Calculation history
  • Fraction manipulation
  • Angle conversions (degrees, minutes, seconds)
  • Permutation, combination, LCM, GCD
  • Quadratic and linear equation solver
  • Coordinate conversion
  • Dice roller
Features
Read full description

Calculator!! has the following additional functionality compared with most available calculators: - Shows the expression as you enter and keeps a history of your calculations (Swipe up on the screen to access the history.) - Capability of performing fraction manipulations and converting between different formats (proper, improper, and mixed fractions) and seamless integration of fraction, integer, and decimal manipulations. - Capability of inputting degrees, minutes, and seconds for angles and converting between degrees-minutes-seconds format and decimal format. - Capability of calculating permutation, combination, Least Common Multiple (LCM), and Greatest Common Divisor (GCD). - Quadratic and system of two linear equations solver - Rectangular to polar and polar to rectangular coordinate conversion (extremely useful for phasor calculations for electrical engineers) - Throws a set of dice (choice of 1 die to 4 dice) - Backspace to delete last digit entered. - Tip Calculator - Geometry Calculator - The left pane scrolls to reveal more functionality without a need to switch modes. The digits and most common operations are always visible and the less common operations can be revealed by scrolling the left half of the screen. - Sinusoidal functions can be calculated for angles in units of degrees, radians, or gradians. - Showing the content of memory on MR button, as long as it fits. Calculator!! is an ongoing project and we are working on more features and functions to be added to every update of the app. You are going to love the simplicity of the user interface and you will get used to the extra functionality added to this product. Please do not hesitate to contact us for any questions, comments, to report any bugs, or to suggest additional functions you would like to see in the upcoming updates.

Screenshots

Calculator Max4 screens
Calculator!!4 screens

Verdict

The call

The clearest difference is price: Calculator Max at Free against Calculator!!'s $0.99. Calculator Max also leads on update cadence (every 2 months vs every 10 months) and ratings volume (1.9K vs 56). Calculator!!'s advantage is in-app purchases (none vs 2) and review sentiment (75% vs 55%). On rating and ads 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

Calculator Max is free to download; Calculator!! costs $0.99 up front. Calculator Max sells 2 in-app purchases, starting at $4.99 per year. Calculator!! asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for Calculator Max against 4.5 for Calculator!!. That said, the two scores are not equally well evidenced: Calculator Max has 1.9K ratings behind it against 56, so its average is the more settled of the two. Written reviews are what separate them: 55% of Calculator Max's written reviews are positive against 75% of Calculator!!'s.

UpkeepUpdate frequency

Calculator Max ships an update every 2 months, Calculator!! every 10 months. Both last shipped on November 1, 2026.

Scorecard8 real differences · 2 level
Calculator Max versus Calculator!!: the parameters behind the verdict, then further details
ParameterCalculator MaxCalculator!!
PriceFree — better$0.99
Rating4.3 (1.9K ratings)4.5 (56 ratings) — better
Positive reviews55.1% of reviews75.0% of reviews — better
Number of ratings1.9K — better56
Update frequencyEvery 2 months — betterEvery 10 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.010.0 — better
Further details — not scored
Size126 MB12 MB
Age rating4+4+
DeveloperPavel KozarekDogahe

Customer experience

Calculator Max

All ratings1,651 ratings
Positive82.0%
Neutral2.8%
Negative15.2%
Written reviews292 reviews
Positive55.1%
Neutral3.4%
Negative41.4%

Calculator!!

All ratings56 ratings
Positive85.7%
Neutral5.4%
Negative8.9%
Written reviews8 reviews
Positive75.0%
Neutral12.5%
Negative12.5%

Bugs and requests

Calculator Max

Reported bugs

3 issues
  • Crashes after iOS 26 update
  • Tape not visible/functional on iPhone
  • Calculator buttons/layout issues in split-screen mode

Requested features

5 requests
  • Left-handed mode
  • Backspace/edit functionality
  • Scientific calculator mode with tape
  • Tape annotation/labeling
  • Cloud/Dropbox sync for tape

Calculator!!

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Calculator Max

Subscriptions1
  • Calculator Max Pro7 Days trial$4.991 Year
One-time1
  • Calculator Max Pro$3.99
None

Calculator!!

No in-app purchases

Questions

Is Calculator Max free?
Calculator Max is free to download, with in-app purchases available.
Is Calculator!! free?
Calculator!! costs $0.99, with no in-app purchases.
Which has better reviews, Calculator Max or Calculator!!?
Calculator!! is rated higher. Calculator Max averages 4.3 out of 5 from 1.9K ratings, while Calculator!! averages 4.5 from 56 ratings.
Do Calculator Max or Calculator!! have ads?
Neither Calculator Max nor Calculator!! shows ads.
Which is updated more often, Calculator Max or Calculator!!?
Calculator Max ships an update every 2 months, and Calculator!! every 10 months. Most recently, Calculator Max was updated on November 1, 2026 and Calculator!! on November 1, 2026.

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