# Calculator Pro+ for iPad — Basic & Scientific Calculator

> iPad calculator with scientific functions, unit converter, and multitasking. (iPhone/iPad app by Mosaic S.r.l..)

- Source: https://appshunter.io/ios/app/calculator-pro-plus-for-ipad/id749118884 (this page in markdown: same URL + `.md`)
- Developer: [Mosaic S.r.l.](https://appshunter.io/developer/570748343)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.40/5 from 61,593 App Store ratings · 423 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.0 · 183 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China) and 4 more
- Released: 2013-11-26
- Data updated: 2026-09-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calculator-pro-plus-for-ipad/id749118884/reviews.md

## What is Calculator Pro+ for iPad?

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

## Key features

- Basic and scientific calculator modes
- Universal unit and currency converter
- Multitasking mode
- Calculation history bar
- Customizable skins
- VoiceOver accessibility

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Weekly with free trial | $0.99 | per 7 days |
| Premium Weekly | $0.99 | per 7 days |
| Premium Yearly with Free Trial | $19.99 | per year |
| Premium Yearly | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Calculator Pro for iPad Full | $0.99 | one-time |


## What do users think of Calculator Pro+ for iPad?

Overall sentiment: negative

**Pros**

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

**Cons**

- 🚨 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
- 🚨 Ads keep coming back even after paying for ad-free version
- 🐛 App crashes or freezes after updates
- 🐛 Stretched out or distorted layout in landscape mode

**Commonly reported bugs**

- Calculations not working correctly
- Unable to restore past purchases

**Most requested features**

- More calculator themes and functionality
- Memory function
- Compatibility with iPhone

## Recent user reviews (10 of 423)

All indexed reviews: https://appshunter.io/ios/app/calculator-pro-plus-for-ipad/id749118884/reviews.md

### 1/5 — App is horrible

*2026-08-06, version 5.22.10*

Remove ads

### 1/5 — Unusable

*2026-08-03, version 5.22.10*

App has become unusable in free form - want me to suffer an ad to use the 4-5 times a year I use it, fine. But give me a way back to my adding result after a few seconds - current ad never ends and is never cancelable.

### 3/5 — Issues a bit

*2026-06-28, version 5.22.10*

Hey, so this app works great. If you can use it. For whatever reason, I can’t close the full screen pop up for getting the pay version, when I am fine with the free version. I don’t need the other designs. A work around, maybe an X for closing it would be great

### 1/5 — Really?

*2026-01-05, version 5.22.10*

A dollar a week to spy on me, no thanks.

### 1/5 — Disappointed

*2025-11-20, version 5.22.10*

Can’t get into the app at all since the “x” to get into the app is too close to the top of the screen 
Tap, tap, tap but I still can’t get in.  I don’t mind the ads but this is just a way to get you to 99 cents a week.

### 4/5 — Nice

*2025-08-22, version 5.22.10*

Good news: It works Bad news: One word: ADS

### 2/5 — NO use to me!

*2025-05-14, version 5.22.10*

Followed all directions to 1. Put standard /basic view on window (and lock in), and 2. Remove history. 
I have multiple scientific models I use often. I want my iPad to have a basic version when I just want “1+1=2” and a simple, quick answer. 
Do you have a way for me to select the basic on this “pro” version? And, to remove the history tracking?
Right now, I’m doing this with PENCIL AND PAPER!
Low stars is for no OPTION.

### 2/5 — Works but very slow

*2025-04-29, version 5.22.10*

For a simple calculator app, it takes an unnecessary amount of time to load up and become ready to use. Even during some calculations it seems laggy. 
Note that this is for the paid version with no ads. It seems to behave as if it is still trying to load the ads but without displaying them. 
It has caused me enough annoyance that I have now deleted it and use something else. Therefore wasted my money.

### 1/5 — Why 17+?!

*2025-01-18, version 5.22.8*

??????????????

### 1/5 — Don’t download

*2024-12-31, version 5.22.8*

Full of adds. I will delete it now.

## Frequently asked questions about Calculator Pro+ for iPad

### What does Calculator Pro+ for iPad do?

Calculator Pro+ for iPad is a versatile calculator application for iPads. It offers both basic and scientific calculation modes, a comprehensive unit and currency converter, and supports multitasking to be used alongside other apps. It also includes features like a history bar and customizable skins.

### What are the key features of this calculator app?

Key features include a basic calculator in portrait mode and a scientific calculator in landscape mode. It boasts a universal converter for numerous units and currencies, a history bar to track calculations, multitasking capabilities, and VoiceOver accessibility. Users can also customize the app's appearance with various skins.

### Is Calculator Pro+ for iPad free to use?

The application is available for free. However, like many apps, it may offer additional features or content through in-app purchases for enhanced functionality.

### What kind of calculations can I perform with this app?

You can perform basic arithmetic operations as well as complex scientific calculations, including degrees and radians. The app also excels at unit conversions across 19 categories like currency, length, temperature, and speed, allowing for seamless transitions between calculations and conversions.

### Who is the target audience for Calculator Pro+ for iPad?

This app is designed for anyone looking for simplicity and functionality on their iPad. It's particularly useful for students from primary school through college for math classes, as well as for professionals needing to solve complex problems in fields like physics, astronomy, or chemistry, and for everyday calculations and unit conversions.

## Version history (last 5 releases)

### 5.22.10 — 2025-04-14

Bug fixes and performance improvements.

### 5.22.9 — 2025-01-30

Bug fixes and performance improvements.

### 5.22.8 — 2024-12-19

Bug fixes and performance improvements.

### 5.22.7 — 2024-10-30

Bug fixes and performance improvements.

### 5.22.6 — 2024-10-11

Bug fixes and performance improvements.

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All apps by Mosaic S.r.l.: https://appshunter.io/developer/570748343

## Related topics

[kcalculate](https://appshunter.io/ios/topics/kcalculate)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*