Comparison

Calculator Max vs Calculator HD++

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 HD++

This application offers a high-precision calculation engine with a user-friendly interface. It allows for real-time result display as formulas are typed, supports multiple undo actions, and enables easy switching between workspaces. Users can also access persistent history, print calculations via AirPrint, and share history via email.

Highlights
  • High precision calculation engine
  • Results displayed while typing
  • Multiple undo functionality
  • Workspace switching
  • Persistent history
  • AirPrint compatibility
  • Email history sharing
Features
Read full description

- It is simple, easy to use and well designed - High precision engine - Result is displayed while typing the formula - Multiple undo - Switch between workspaces ! - Persistent history - Specialized keypad for iPhone and iPad - Supports bluetooth keyboard - Right or left-handed mode - Print easily with AirPrint - Share history by e-mail - it is FREE !

Screenshots

Calculator Max4 screens
Calculator HD++1 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator HD++ at none against Calculator Max's 2. Calculator HD++ also leads on review sentiment (82% vs 55%) and iOS requirement (10.0 vs 15.0). Calculator Max's advantage is ads (none vs shown) and ratings volume (1.8K vs 277). On price, rating, update cadence 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 Max sells 2 in-app purchases, starting at $4.99 per year. Calculator HD++ 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 4.4 for Calculator HD++. That said, the two scores are not equally well evidenced: Calculator Max has 1.8K ratings behind it against 277, 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 82% of Calculator HD++'s.

UpkeepUpdate frequency

Calculator Max ships an update every 2 months, Calculator HD++ monthly. Both last shipped on September 25, 2026.

Scorecard6 real differences · 4 level
Calculator Max versus Calculator HD++: the parameters behind the verdict, then further details
ParameterCalculator MaxCalculator HD++
PriceFreeFree
Rating4.3 (1.8K ratings)4.4 (277 ratings) — better
Positive reviews55.2% of reviews81.6% of reviews — better
Number of ratings1.8K — better277
Update frequencyEvery 2 monthsMonthly — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod, MaciPhone, iPad, iPod, Apple Watch
Requires iOS15.010.0 — better
Further details — not scored
Size126 MB35 MB
Age rating4+4+
DeveloperPavel Kozareksmalltech sarl

Customer experience

Calculator Max

All ratings1,651 ratings
Positive82.0%
Neutral2.8%
Negative15.2%
Written reviews290 reviews
Positive55.2%
Neutral3.4%
Negative41.4%

Calculator HD++

All ratings277 ratings
Positive84.5%
Neutral6.1%
Negative9.4%
Written reviews354 reviews
Positive81.6%
Neutral5.4%
Negative13.0%

User reviews

Calculator Max

From 1.8K App Store ratings

What we love

  • 🚀 Easy to use
  • 📝 Useful note-taking feature
  • 💾 Tape/history feature
  • 👍 Clean and intuitive interface
  • 🎨 Customizable appearance

Room to improve

  • 🐛 Compatibility issues with newer iOS versions
  • 📤 Lack of export/sharing options for tape/history
  • 🔍 Difficulty finding settings
  • 🔀 Sensitive orientation switching

Calculator HD++

From 277 App Store ratings

What we love

  • 👍 Easy to use
  • 💡 Detailed calculation history
  • 🚀 Responsive and fast
  • 👍 Helpful haptic feedback
  • 👍 Intuitive interface

Room to improve

  • 🐛 Settings have missing parameters
  • 🐛 Previous calculations won't go away
  • 💸 Annoying ads
  • 🔍 Difficult to clear history

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 HD++

Reported bugs

2 issues
  • Crashes after recent update
  • Incompatibility with Bluetooth keyboards

Requested features

3 requests
  • Option to remove ads
  • Ability to switch to hexadecimal mode
  • Larger buttons for easier use

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 HD++

No in-app purchases

Questions

Is Calculator Max free?
Calculator Max is free to download, with in-app purchases available.
Is Calculator HD++ free?
Calculator HD++ is free to download, with no in-app purchases.
Which has better reviews, Calculator Max or Calculator HD++?
Calculator HD++ is rated higher. Calculator Max averages 4.3 out of 5 from 1.8K ratings, while Calculator HD++ averages 4.4 from 277 ratings.
Do Calculator Max or Calculator HD++ have ads?
Calculator HD++ shows ads; Calculator Max does not.
Which is updated more often, Calculator Max or Calculator HD++?
Calculator Max ships an update every 2 months, and Calculator HD++ monthly. Most recently, Calculator Max was updated on September 25, 2026 and Calculator HD++ on September 25, 2026.

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