Comparison

Jumbo Calculator vs Calculator Max

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

Head to head
About

Jumbo Calculator

This app offers a straightforward large-button calculator experience, ideal for quick calculations. It includes intuitive gestures for editing and accessibility features like VoiceOver support.

Highlights
  • Large, easy-to-read buttons
  • Swipe for backspace
  • Double tap to copy/paste
  • Landscape mode calculator
  • VoiceOver support
Read full description

Jumbo Calculator is the super simple large-buttoned calculator for everyone. While you can't feel the exquisite texture of its large plastic buttons (and the included solar panel doesn't actually charge your battery), Jumbo Calculator succeeds at its main purposes: adding, subtracting, multiplying, and dividing. Features: · Easy to read and find buttons (you might be able to touch type on a touchscreen). · Simple gestures for backspace (swipe the calculator screen) and copy & paste (double tap). · A smaller version of the calculator in landscape for when you're too tired to stretch your fingers. · VoiceOver support for blind and low-vision users.

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/

Screenshots

Calculator Max4 screens

Verdict

The call

The clearest difference is rating: Calculator Max at 4.3 against Jumbo Calculator's 3.6. Calculator Max also leads on ratings volume (1.8K vs 78) and device support (4 vs 1). Jumbo Calculator's advantage is in-app purchases (none vs 2) and iOS requirement (9.3 vs 15.0). On price, review sentiment, update cadence 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

Both are free to download. Calculator Max sells 2 in-app purchases, starting at $4.99 per year. Jumbo Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator Max holds the better App Store score, 4.3 against 3.6. That said, the two scores are not equally well evidenced: Calculator Max has 1.8K ratings behind it against 78, so its average is the more settled of the two. Written reviews point the same way: 50% of Jumbo Calculator's written reviews are positive against 55% of Calculator Max's.

UpkeepUpdate frequency

Jumbo Calculator ships an update monthly, Calculator Max every 2 months. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

Scorecard6 real differences · 4 level
Jumbo Calculator versus Calculator Max: the parameters behind the verdict, then further details
ParameterJumbo CalculatorCalculator Max
PriceFreeFree
Rating3.6 (78 ratings)4.3 (1.8K ratings) — better
Positive reviews49.6% of reviews55.1% of reviews — better
Number of ratings781.8K — better
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod, Mac — better
Requires iOS9.3 — better15.0
Further details — not scored
Size23 MB126 MB
Age rating4+4+
DeveloperChristopher WeemsPavel Kozarek

Customer experience

Jumbo Calculator

All ratings78 ratings
Positive60.3%
Neutral10.3%
Negative29.5%
Written reviews250 reviews
Positive49.6%
Neutral11.6%
Negative38.8%

Calculator Max

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

User reviews

Jumbo Calculator

From 78 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 💡 Large, clear buttons
  • 🚀 Fast and responsive
  • 🔒 No ads or distractions

Room to improve

  • 🐛 Lacks basic features like percentage button
  • 🔢 Limited functionality for advanced calculations
  • 🧠 Does not respect order of operations

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

Bugs and requests

Jumbo Calculator

Reported bugs

2 issues
  • Decimal point sometimes not recognized
  • Pos/Neg function not always working as expected

Requested features

4 requests
  • Add percentage button
  • Implement scientific calculator mode
  • Include memory functions
  • Add option to dim display by covering solar panel

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

In-app purchases

None

Jumbo Calculator

No in-app purchases

2 purchases

Calculator Max

Subscriptions1
  • Calculator Max Pro7 Days trial$4.991 Year
One-time1
  • Calculator Max Pro$3.99

Questions

Is Jumbo Calculator free?
Jumbo Calculator is free to download, with no in-app purchases.
Is Calculator Max free?
Calculator Max is free to download, with in-app purchases available.
Which has better reviews, Jumbo Calculator or Calculator Max?
Calculator Max is rated higher. Jumbo Calculator averages 3.6 out of 5 from 78 ratings, while Calculator Max averages 4.3 from 1.8K ratings.
Do Jumbo Calculator or Calculator Max have ads?
Neither Jumbo Calculator nor Calculator Max shows ads.
Which is updated more often, Jumbo Calculator or Calculator Max?
Jumbo Calculator ships an update monthly, and Calculator Max every 2 months. Most recently, Jumbo Calculator was updated on October 16, 2026 and Calculator Max on October 19, 2026.

Other comparisons