Comparison

Calculator Pro+ for iPad vs Big Button Calculator Pro Lite

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

Head to head
About

Calculator Pro+ for iPad

This app offers both basic and scientific calculation modes, alongside a comprehensive unit and currency converter. It supports multitasking, allowing simultaneous use with other applications, and features a history bar for tracking calculations.

Highlights
  • Basic and scientific calculator modes
  • Universal unit and currency converter
  • Multitasking mode
  • Calculation history bar
  • Customizable skins
  • VoiceOver accessibility
Read full description

A simple calculator for your iPad with unit & currency converter and multitasking mode. Get it now for free! Calculator Pro main features: - Basic calculator in Portrait Mode - Scientific calculator in Landscape Mode - Universal converter for Currency, Length, Time, Weight, Pressure, Temperature, Fuel Consumption, Speed and many more categories - Multitasking mode: use Calculator Pro and any other app simultaneously Calculator Pro+ for iPad is designed for everyone looking for simplicity and functionality. Enjoy basic calculations in Portrait Mode with big handy buttons, or make complex calculations in scientific calculator, available in Landscape Mode. Calculator Pro is the only one calculator needed for math classes from primary school through college. The app is great in basic everyday calculations and solving complex problems in physics, astronomy or chemistry as well. Need to convert one unit to another? With the intuitive and beautifully designed converter, you can easily switch between currencies, temperatures, length, speed and other numerous units, and continue calculation without interruptions. Features: • Two modes are available: do basic calculations in Portrait Mode or go advanced in Landscape Mode • Degrees and Radians calculations • History Bar: see your full calculation history directly on the screen • Track Calculations History: view, save, delete selected equation or clear all • Universal converter with 19 categories, including Currency, Length, Time, Weight, Pressure, Temperature, Area, Data Size, Energy, Force, Frequency, Power, Acceleration, Density, Angle, Typography, Volume, Fuel Consumption and Speed • Handy text search to find categories and units instantly • Multitasking mode: bring in Calculator Pro while viewing web pages, photos, taking notes and more to get results instantly! • Calculator Pro is now accessible via VoiceOver as well • Smart Keyboard support: take full advantage of seamless and intuitive calculations on your iPad Pro • Pick the look from a bunch of skins to suit your own preference (Modern, Rose, Wood, Old, Doodle, Minimalistic, Zombie, Yellow, New Year) • Memory buttons to help you out with complex calculations • Accidentally input the wrong number? Just swipe with your finger to edit it! • Copy and paste results and expressions directly into the current calculation • Comment on the equation and send the calculation results with comments via email Now you can do calculations on the go seamlessly! For complete access to all Calculator Pro+ for iPad features, you will need to allow access to the following: *Location data - this will enable automatic currency selection in the Converter. Privacy Policy: http://apalon.com/privacy_policy.html EULA: http://www.apalon.com/terms_of_use.html California Privacy Notice: https://apalon.com/privacy_policy.html#h AdChoices: https://apalon.com/privacy_policy.html#i

About

Big Button Calculator Pro Lite

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

Highlights
  • Large buttons
  • Dual-line display
  • 18 color themes
  • Multi-line input
  • Gesture controls
  • VoiceOver accessibility
Features
Read full description

This is THE BEST calculator for iOS with big buttons and colorful backgrounds! This version is ad supported. ・Dual-line display - shows the input and result at the same time ・Percentage and backspace button ・18 color themes ・Multi-line input for really long equations ・Automatic scientific formatting ・VoiceOver accessibility ・Split View Gestures ・Swipe left on the display to backspace ・Swipe right on the display to clear ・Tap & hold on the result to copy ・Tap & hold on the input to move the cursor, copy, paste Customize ・Color Theme ・Sound URL Scheme: bigcalculatorpro://

Screenshots

Big Button Calculator Pro Lite4 screens

Verdict

The call

The clearest difference is review sentiment: Big Button Calculator Pro Lite at 83% against Calculator Pro+ for iPad's 26%. Big Button Calculator Pro Lite also leads on in-app purchases (none vs 5) and rating (4.7 vs 4.4). Calculator Pro+ for iPad's advantage is update cadence (monthly vs every 3 months) and ratings volume (62K vs 14K). On price 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 Pro+ for iPad sells 5 in-app purchases, starting at $0.99 per 7 days. Big Button Calculator Pro Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Big Button Calculator Pro Lite holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 62K and 14K respectively. Written reviews point the same way: 26% of Calculator Pro+ for iPad's written reviews are positive against 83% of Big Button Calculator Pro Lite's.

UpkeepUpdate frequency

Calculator Pro+ for iPad ships an update monthly, Big Button Calculator Pro Lite every 3 months. Both last shipped on October 30, 2026.

Scorecard8 real differences · 2 level
Calculator Pro+ for iPad versus Big Button Calculator Pro Lite: the parameters behind the verdict, then further details
ParameterCalculator Pro+ for iPadBig Button Calculator Pro Lite
PriceFreeFree
Rating4.4 (62K ratings)4.7 (14K ratings) — better
Positive reviews26.0% of reviews82.5% of reviews — better
Number of ratings62K — better14K
Update frequencyMonthly — betterEvery 3 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.0 — better15.2
Further details — not scored
Size183 MB45 MB
Age rating17+4+
DeveloperMosaic S.r.l.Cider Software LLC

Customer experience

Calculator Pro+ for iPad

All ratings61,593 ratings
Positive85.7%
Neutral5.0%
Negative9.4%
Written reviews423 reviews
Positive26.0%
Neutral5.9%
Negative68.1%

Big Button Calculator Pro Lite

All ratings13,954 ratings
Positive93.1%
Neutral3.3%
Negative3.6%
Written reviews372 reviews
Positive82.5%
Neutral7.3%
Negative10.2%

User reviews

Calculator Pro+ for iPad

From 62K App Store ratings

What we love

  • 🚀 Easily the best calculator app on iPad
  • 👍 Great app and very useful
  • 👍 Simple and straightforward features and functions
  • 👍 Allows customization & personalization

Room to improve

  • 🚨 Lousy and annoying pop-up screen asking to subscribe
  • 🚨 Too many ads that make the app unusable
  • 🚨 Ads interrupt calculations and disrupt workflow
  • 🚨 Ads are very intrusive and full-screen
  • 🚨 Ads make the app virtually unusable without paying

Big Button Calculator Pro Lite

From 14K App Store ratings

What we love

  • 👍 Easy to use
  • 💡 Customizable backgrounds
  • 🚀 Accurate calculations
  • 👍 Large, clear numbers
  • 👍 Helpful for homeschooling

Room to improve

  • 🐛 Ads can be intrusive
  • 🐛 Ads in foreign languages
  • 🐛 Ads take time to close
  • 🔋 High battery consumption due to ads

Bugs and requests

Calculator Pro+ for iPad

Reported bugs

2 issues
  • Calculations not working correctly
  • Unable to restore past purchases

Requested features

3 requests
  • More calculator themes and functionality
  • Memory function
  • Compatibility with iPhone

Big Button Calculator Pro Lite

Reported bugs

2 issues
  • Occasionally shows answer before calculation is complete
  • Rounding issues leading to inaccurate results

Requested features

4 requests
  • Add more background options
  • Allow custom background uploads
  • Add option to change button colors
  • Improve ad experience or offer ad-free version

In-app purchases

5 purchases

Calculator Pro+ for iPad

Subscriptions4
  • Premium Weekly with free trial7 Days trial$0.997 Days
  • Premium Weekly$0.997 Days
  • Premium Yearly with Free Trial7 Days trial$19.991 Year
Show 1 more
  • Premium Yearly$19.991 Year
One-time1
  • Calculator Pro for iPad Full$0.99
None

Big Button Calculator Pro Lite

No in-app purchases

Questions

Is Calculator Pro+ for iPad free?
Calculator Pro+ for iPad is free to download, with in-app purchases available.
Is Big Button Calculator Pro Lite free?
Big Button Calculator Pro Lite is free to download, with no in-app purchases.
Which has better reviews, Calculator Pro+ for iPad or Big Button Calculator Pro Lite?
Big Button Calculator Pro Lite is rated higher. Calculator Pro+ for iPad averages 4.4 out of 5 from 62K ratings, while Big Button Calculator Pro Lite averages 4.7 from 14K ratings.
Do Calculator Pro+ for iPad or Big Button Calculator Pro Lite have ads?
Both Calculator Pro+ for iPad and Big Button Calculator Pro Lite show ads.
Which is updated more often, Calculator Pro+ for iPad or Big Button Calculator Pro Lite?
Calculator Pro+ for iPad ships an update monthly, and Big Button Calculator Pro Lite every 3 months. Most recently, Calculator Pro+ for iPad was updated on October 30, 2026 and Big Button Calculator Pro Lite on October 30, 2026.

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