# The Calculator Pro· — Basic Scientific & Converter

> Basic, scientific calculator and converter with equation editing and customizable themes. (iPhone/iPad app by KISSAPP, S.L..)

- Source: https://appshunter.io/ios/app/the-calculator-pro/id1443579398 (this page in markdown: same URL + `.md`)
- Developer: [KISSAPP, S.L.](https://appshunter.io/developer/552812711)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 4.50/5 from 145 App Store ratings · 78 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 46 MB
- Languages: American English, European Spanish
- Released: 2018-12-01
- Data updated: 2026-09-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/the-calculator-pro/id1443579398/reviews.md

## What is The Calculator Pro·?

Download now the best basic calculator with simple features and big buttons for your daily calculations in your iPhone or iPad.

No subscriptions, it is for free.

Main features:

* Calculator 7 in 1
* Basic, scientific, converters for Currency, Distance, Weight, Time and Data
* Choose between the Basic or Scientific mode just by rotating your device
* Historical records of all your operations done in your screen
* Divided view to allow multitasking (iPad)
* Operate using degrees or radians
* Edit ecuations
* Memory bank
* Themes to customize your calculator as you wish
* intuitive and exclusive design

EDIT EQUATION
You can edit as many digits as the ones from the current equation.
You can drag the cursor with your finger.

LIST OF MATHEMATICAL OPERATIONS
Addition, subtraction, division, multiplication and percentages
Powers and roots
Scientific notation
Power of e, powers of base 10 and inverse powers
Neperian and decimal logarithms
Sine, cosine and tangent
Secant, cosecant, cotangent
Hyperbolic sine, hyperbolic cosine, hyperbolic and tangent
Inverse function, introduction of a random or factorial number

What are you waiting for to download it? It’s FREE!!!

## Key features

- Calculator 7 in 1
- Scientific and basic modes
- Unit and currency converters
- Equation editing
- Historical records
- Customizable themes

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| No ads | $3.99 | one-time |


## Recent user reviews (10 of 78)

All indexed reviews: https://appshunter.io/ios/app/the-calculator-pro/id1443579398/reviews.md

### 5/5 — Gracias

*2026-03-07, version 1.01*

Muchas gracias

### 5/5 — Bom

*2025-08-14, version 1.01*

Muito bom

### 5/5 — Psyche

*2025-07-29, version 1.01*

Very convenient

### 5/5 — Good

*2025-01-12, version 1.01*

Good

### 5/5 — Loveit

*2024-07-07, version 1.01*

I love iit 🥰🥰🥰

### 5/5 — Me sirve

*2024-06-23, version 1.01*

Me sirve mucho

### 5/5 — Excelente app

*2024-06-12, version 1.01*

Muy practica y útil

### 5/5 — Útil

*2024-05-27, version 1.01*

Muy sencilla y completa

### 5/5 — Enjoy

*2024-05-23, version 1.01*

Easy to use

### 5/5 — Reseña

*2024-04-30, version 1.01*

Me gusta mucho es la mejor aplicación

## Frequently asked questions about The Calculator Pro·

### What does The Calculator Pro· do?

The Calculator Pro· is a versatile calculator app that offers both basic and scientific mathematical functions. It also includes converters for currency, distance, weight, time, and data. Users can customize its appearance with themes and edit equations directly.

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

Key features include a '7 in 1' calculator offering basic and scientific modes, various converters, the ability to edit equations, historical records of operations, and customizable themes. It also supports multitasking on iPads and allows calculations in degrees or radians.

### Is The Calculator Pro· free to use?

Yes, the app is free to download and use. While it is free, it does offer in-app purchases, which may unlock additional features or customization options.

### What devices is The Calculator Pro· compatible with?

The app is designed for use on iPhones and iPads. It specifically mentions features like divided view for multitasking, which is beneficial on iPad devices.

### What are some common use cases for this app?

Common use cases include performing everyday calculations, tackling complex scientific problems, converting units of measurement (like distance or weight), converting currencies for travel or shopping, and editing equations on the fly for accuracy.

## Version history (last 2 releases)

### 1.01 — 2019-03-07

- Fixed Bugs

Thanks for all your comments! We continue working to improve the app, read all constructive comments :)

### 1.00 — 2018-11-30

No release notes.

## Apps similar to The Calculator Pro·

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| [The Simple Calculator - Solve!](https://appshunter.io/ios/app/the-simple-calculator-solve/id1525169566) | 4.6 (171) | Free | Utilities |
| [Calculator, basic and advanced](https://appshunter.io/ios/app/calculator-basic-and-advanced/id1450111750) | 4.6 (78) | Free | Utilities |
| [DayCalc - Note Calculator](https://appshunter.io/ios/app/daycalc-note-calculator/id661506264) | 4.7 (126) | Free | Utilities |
| [Calculator Smart](https://appshunter.io/ios/app/calculator-smart/id698030968) | 4.7 (494) | Free | Utilities |
| [Calculator ⁺⁻](https://appshunter.io/ios/app/calculator/id6443813573) | 4.7 (40) | Free | Utilities |

## More apps by KISSAPP, S.L.

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- [Fireplace ©](https://appshunter.io/ios/app/fireplace/id590225172)

All apps by KISSAPP, S.L.: https://appshunter.io/developer/552812711

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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 2026-09-01.*