# Calculator Expert

> Precise mathematical calculator with unlimited calculations and editable history. (iPhone/iPad app by Pavel Tarabrin.)

- Source: https://appshunter.io/ios/app/calculator-expert/id389044266 (this page in markdown: same URL + `.md`)
- Developer: [Pavel Tarabrin](https://appshunter.io/developer/331623741)
- Category: Utilities, Finance
- Price: Free with in-app purchases
- Rating: 4.30/5 from 112 App Store ratings · 45 written reviews indexed
- Age rating: 4+
- Requires: iOS 3.2 · 2 MB
- Languages: English
- Released: 2010-10-02
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/calculator-expert/id389044266/reviews.md

## What is Calculator Expert?

Calculator Expert is the most precise mathematical app for your iPad. It lets you conduct an unlimited amount of calculations accurate to the very last digit.

Calculator Expert uses a highly precise mathematical library. Thus it doesn’t have to approximate the result and guarantees that you get mistake-free calculations even if you’re doing trigonometry.

The computation history is stored within the app. You can view, edit and erase your calculations any time you want to. Moreover, prior results can be used to carry out new calculations.

All the arithmetic operations and more than 25 mathematical functions are fully supported. Addition, subtraction, multiplication and division are complemented with roots and logarithms of any degrees.

Calculator Expert outstanding features:

✓ The ultimate precision. Calculator Expert is as accurate as mathematical suites and it’s not that expensive at all

✓ Universal functionality. Calculator Expert is perfect both for everyday calculations and for technical purposes

✓ The interface you love. The Calculator Expert interface mimics the standard iPhone Calculator. Getting used to it takes you no time

✓ Editable history. All the calculations you need can be stored for an unlimited time. Unnecessary ones can be deleted easily

✓ Different angle measurement systems. Carry out calculations in radians or degrees

✓ Copy&Paste support. Conduct massive calculations instantly with the ability to duplicate results you’ve already computed

✓ Automatic digit grouping. Numbers break up into groups of digits in accordance with your regional standards

✓ Continuing computing. Get any numbers from your computation history to carry out new calculations

✓ State saving. Your calculations are not erased when you quit the app

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## Key features

- Unlimited precise calculations
- Over 25 mathematical functions
- Editable computation history
- Copy & Paste support
- Radians or degrees measurement
- Automatic digit grouping
- State saving

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove advertisement | $1.99 | one-time |


## Recent user reviews (10 of 45)

All indexed reviews: https://appshunter.io/ios/app/calculator-expert/id389044266/reviews.md

### 5/5 — Superb calculator

*2017-10-05, version 1.3*

This calculator meets my daily needs and the occasional special requirements. I like the control I have over the history.

### 5/5 — Great Calculator

*2017-05-22, version 1.3*

This is a great calculator. It can be a great tool for many purposes, especially where mass calculation are required to complete complex calculations that need to be reviewed in stages.

### 5/5 — Nice

*2015-02-01, version 1.3*

Nice calculator.  Nice typewriter (really?) sound effect with cash register bell.  Love the viewable history.  Works well and allows many more digits than others.

### 2/5 — Crap Calc

*2014-05-15, version 1.3*

Never at the same rotation as the screen when I need it. In the amount of time it takes to do the minor calc that I require, I'm still fighting rotation. So I'm deleting and trying another.

### 2/5 — Good, but wrong answers often

*2013-06-22, version 1.3*

Sometimes gives wrong answers. So watch carefully.

### 5/5 — Great calculator!

*2013-05-30, version 1.3*

Some say this is annoying with sounds. I don't know about that. What I do know is I needed a calculator and this one fits the billet. How good is that!!

### 4/5 — Great App

*2013-04-03, version 1.3*

App works great. There are a few spelling errors, but the functionality of the app is good.

### 3/5 — Oops, typed in a wrong number

*2013-02-27, version 1.3*

No delete or backspace button.  If mistype a number (happens often), you must clear (C) and retype the whole entry again.  Otherwise, very responsive, and nice interface.

### 5/5 — Mr.

*2013-02-25, version 1.3*

Great little app!

### 4/5 — Pretty good

*2013-02-13, version 1.3*

It is a good app, except for that whenever you try to delete stuff, it asks you, " are you shure?" This is annoying, and the adds pop up quite a bit. But it is otherwise very good. Calculates fast, lots of BIG buttons, and a really easy to access history bar.Loses a star for the mistakes and stuff, but otherwise great. :-)

## Frequently asked questions about Calculator Expert

### What does Calculator Expert do?

Calculator Expert is a precise mathematical application for iPad that allows you to perform an unlimited number of calculations with high accuracy. It supports over 25 mathematical functions, including arithmetic operations, roots, and logarithms, and stores your computation history for easy access and reuse.

### What are the key features of Calculator Expert?

Key features include ultimate precision in calculations, universal functionality for everyday and technical use, an interface that mimics the standard iPhone Calculator, editable computation history, support for different angle measurement systems (radians or degrees), copy & paste functionality, automatic digit grouping, and state saving so your calculations are not lost when you quit the app.

### Is Calculator Expert free to use?

Based on the provided information, Calculator Expert is a paid application. It does not have in-app purchases or advertisements, indicating a one-time purchase model for full access to its features.

### What kind of calculations can I perform with Calculator Expert?

You can perform all basic arithmetic operations like addition, subtraction, multiplication, and division. Additionally, it supports over 25 mathematical functions, including roots and logarithms of any degree, and trigonometric functions, all with high precision.

### Can I reuse previous calculations?

Yes, the app stores your computation history, allowing you to view, edit, and erase past calculations. You can also use prior results to carry out new calculations, making complex computations more efficient.

## Version history (last 1 release)

### 1.3 — 2012-03-20

✓ Computation sequence logic improvements
✓ Added copy/paste for history and input
✓ Added decimal separator based on user’s locale
✓ Added swipe to the right to delete the last number

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## More apps by Pavel Tarabrin

- [Photo Guard: photos protection](https://appshunter.io/ios/app/photo-guard-photos-protection/id488125473)
- [Tesla Wars](https://appshunter.io/ios/app/tesla-wars/id1578854437)

All apps by Pavel Tarabrin: https://appshunter.io/developer/331623741

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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 2026-06-10.*