# Calculator M+ — Math, scientific & memory calc

> Powerful calculator app for math, scientific, and memory functions. (iPhone/iPad app by InnovationBox.)

- Source: https://appshunter.io/ios/app/calculator-m-plus/id1449722969 (this page in markdown: same URL + `.md`)
- Developer: [InnovationBox](https://appshunter.io/developer/388046149)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.50/5 from 110 App Store ratings · 11 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 8 MB
- Languages: American English
- Released: 2019-02-12
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calculator-m-plus/id1449722969/reviews.md

## What is Calculator M+?

Introducing Calculator M+, the most powerful and versatile calculator app on the App Store. With a sleek and intuitive interface, Calculator M+ makes it easy to perform complex calculations with ease.

But that's not all - Calculator M+ also includes powerful memory and history features to help you keep track of your calculations. Use the memory function to store and recall values, and the history function to review your calculation history.

Whether you're a student, professional, or just someone who needs a powerful calculator, Calculator M+ has you covered. Download Calculator M+ now and experience the power of the best calculator app on the App Store.

FEATURES

- Cross-Platform support! It works on Mac, iPad, and iPhone devices supporting all available sizes
- Multi-tasking and landscape support for iPad
- Dark-mode support
- Simple math calculations
- Scientific calculations; sin, cos, tan, tan-1, log2, log10, ln, e, rand, deg, π, ײ, √×, ׳, ³√×, x!, 1/×, |×|, %, 2^×
- Memory: It stores your calculation results so that you can use them in another calculation.
- Simple to use main features with scrolling keyboard
- Calculates in realtime as you type
- Displays concurrently, both the result and calculation process
- Sounds and haptic feedback

PRO-FEATURES

- History functionality; it keeps your calculation history, which you can review later, or re-use previous results in your new calculations
- Always dark-mode option
- Apple Pencil support! Just write it to calculate
- Monospace font option
- Light app icon option

Pro features are available for all of your devices with an annual subscription.

Your feedback and suggestions would be greatly appreciated. 
Please reach us at support@innovationbox.com

Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy policy: https://innovationbox.com/calculator/privacy-policy.html

## Key features

- Scientific calculations
- Memory storage
- Calculation history
- Cross-platform support
- Dark mode
- Apple Pencil support

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Calculator M+ Pro Annual | $6.99 | per year |


## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/calculator-m-plus/id1449722969/reviews.md

### 1/5 — i have had bettercalulators

*2024-05-24*

this calulator is not user friendly

### 5/5 — Best Calculator!

*2023-01-03*

Memory feature is helping me lot.

### 5/5 — Best calculator app I've ever used

*2023-01-03*

Design is so simple and beautiful. Definitely replacing the default calculator app. Multi-platform support is a great addition!

### 1/5 — Can’t restore pro features as a previous user

*2022-12-19, version 2.5.0*

Pro features IAP can’t be restored as a previous user. Please fix it and provide the access to Pro features ASAP which I had before this update.

### 5/5 — The best designed calculator

*2022-12-19, version 2.5.0*

I love the multi platform support!

### 5/5 — Best Kalkulator ever!

*2020-05-09*

I’ve been trying different calculator apps and finally discover this one which allows me to copy and paste only the result where I want. Most apps copy the complete operations but not this. 
Great for my needs. I’ll even give you an additional star ⭐️⭐️⭐️⭐️⭐️⭐️

### 2/5 — Zero percent

*2019-03-10, version 1.0.1*

Great and simple concept. Unfortunately mathematicians need to ad concurrent percentages. This product does not do that even though there is a percentage key.

### 4/5 — Very nice

*2019-03-08*

I only wish that the percent key (%) is on the main screen, not with the scientific keys where I need to swipe to get to it. There is enough space for it to be with the basic functions if the equal key (=) is shortened.

-1 star for that.

**Developer response:** Thank you for your idea. We will think about it. Maybe we can add an option to settings for adding % to main screen.

### 3/5 — No () = not advanced

*2019-03-08*

Also crashes

**Developer response:** Hello, we are planning to add brackets with next update. Also our development team working on improvements and bug fixes. Thank you.

### 5/5 — This app is so cool

*2019-02-17*

My favorite calculator app so far!!!

## Frequently asked questions about Calculator M+

### What does Calculator M+ do?

Calculator M+ is a powerful and versatile calculator app that handles basic math, complex scientific calculations, and offers memory storage and history features. It provides a sleek and intuitive interface for performing calculations on Mac, iPad, and iPhone devices.

### What are the key features of Calculator M+?

Key features include a wide array of scientific functions (sin, cos, log, etc.), memory storage for reusing values, and a history function to review past calculations. It also supports dark mode, multitasking, and landscape orientation on iPad, with Apple Pencil support available in the Pro version.

### How much does Calculator M+ cost?

The app offers a free version with core calculator functionalities. Advanced 'Pro' features, such as the full history functionality and Apple Pencil support, are available through an annual subscription.

### What devices is Calculator M+ compatible with?

Calculator M+ is designed for cross-platform support, working on Mac, iPad, and iPhone devices. It is optimized for all available screen sizes and supports multitasking and landscape modes on the iPad.

### Can I use Calculator M+ for advanced math problems?

Yes, the app excels at advanced math problems with its extensive scientific calculation capabilities. It includes functions like trigonometry (sin, cos, tan), logarithms (log2, log10, ln), exponents, factorials, and more, making it suitable for complex mathematical tasks.

## Version history (last 5 releases)

### 2.5.1 — 2023-01-03

- Bug fixes

### 2.5.0 — 2022-12-19

Calculator M+ v2.5.0

Kalkulator has changed its name to Calculator M+ and now it is free of charge! Only pro features require a monthly subscription, that is universal for all of your Apple devices.

WHAT'S NEW

- Cross-Platform support! Now it works on Mac, iPad, and iPhone devices!
- Parenthesis support
- Multi-tasking and landscape support for iPad
- Dark-mode support
- Various bug fixes
- UI Design improvements

PRO-FEATURES

- History functionality; it keeps your calculation history, which you can review later, or re-use previous results in your new calculations
- Always dark-mode option
- Apple Pencil support! Just write it to calculate
- Monospace font option
- Light app icon option

Pro features are available for all of your devices with a monthly subscription and are also available to previous purchasers.

There might be some issues we might have missed. Your feedback and suggestions would be greatly appreciated. Please reach us at support@innovationbox.com

### 1.0.2 — 2019-03-14

- Improvements and bug fixes

### 1.0.1 — 2019-02-26

- Minor bug fixes

### 1.0 — 2019-02-12

No release notes.

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## More apps by InnovationBox

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All apps by InnovationBox: https://appshunter.io/developer/388046149

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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 2026-08-26.*