# Better Calculator — Up to one million digits

> High-precision calculator for complex calculations up to one million digits. (iPhone/iPad app by Joachim Neumann.)

- Source: https://appshunter.io/ios/app/better-calculator/id1118056690 (this page in markdown: same URL + `.md`)
- Developer: [Joachim Neumann](https://appshunter.io/developer/741515887)
- Category: Productivity, Education
- Price: Free
- Rating: 3.10/5 from 7 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 1 MB
- Languages: American English
- Released: 2016-06-03
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/better-calculator/id1118056690/reviews.md

## What is Better Calculator?

This high precision calculator is an open source hobby project. If you find a bug, you can create an issue at https://github.com/joachimneumann/Calculator

## Key features

- High precision calculations
- Up to one million digits
- Open source
- Bug reporting via GitHub

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/better-calculator/id1118056690/reviews.md

### 3/5 — percentuale

*2025-01-06, version 3.0*

better calculator se sommo percentuale da la somma ma non dice quanto è la percentuale
Le versioni precedenti erano perfette

### 1/5 — Keine Eingabe über Tastatur möglich?

*2024-01-02, version 3.0*

Ich kann es kaum glauben, aber auf meinem Mac war zumindest keine Eingabe über die Tastatur möglich. Nur Mausklick auf die virtuellen Tasten.

### 5/5 — Great for high precision

*2023-07-08*

The comma is the decimal point.  This is a great calculator for special purposes involving high precision up to one million digits.  A little more documentation would be helpful to learn how to use it, however, with a little exploration, it is intuitive enough to learn how to use.

### 5/5 — Great App! Handles Extremely Big and Small Numbers.

*2022-12-02*

I really like this app. I’m a diehard HP calculator fan but NOTHING out there comes close to this high degree of precision. Decent range of functions too. 

Thank you for making this available! Nice work!

Some thoughts:

1) Might you consider adding Knuth (up arrow) functions?

2) Would adding a floating point mode be a possibility? It isn’t always easy to tell if those large integers fall within the specified number of digits of precision.

3) Displaying large results in the app itself, in addition to the clipboard paste feature, would be great. Font size could be adjustable for this. A number of text editors I’ve tried choke on pasting 10^6 digits! 

Again, thanks for your efforts!

**Developer response:** Thanks for your friendly review. I was thinking about reverse polish notation, but that might confuse other users. In a first step, version 2.2 now has copy&paste in the high precision mode. Parentheses would also be nice, they are on my todo list.

### 1/5 — No decimal point!

*2022-10-20*

You've got to be kidding me--there's no way to get a decimal point, the button is a comma!

### 3/5 — Works but no keyboard support

*2022-10-11*

Can't use the keyboard to type in numbers, which is very inconvenient. Also, can't copy-paste. All that makes this calculator limited to very basic use-cases. Probably more suitable to touch screen users.

### 4/5 — Why the recurring nines ?

*2021-08-17*

This is a delightful little calculator, and excellent for ‘showing off’ … BUT … whilst 1/8 displays the correct answer 1/80 does not.

Can you please explain, and preferably correct, this anomaly ? 

Thanks

### 4/5 — Unglaubliche Genauigkeit

*2019-11-14, version 1.7*

Man berechne mal e^(pi*sqrt(163)).

Für die Praxis bräuchte man allerdings noch ein paar Speicher für Zwischenergebnisse. 

Ob hier wirklich 100000 Stellen von pi durch 4 atan(1) rauskommen. Ich kann es mir kaum vorstellen.

### 2/5 — Parentheses?!

*2019-01-27*

It has some unique functions but how do you enter a big expression without parentheses? Not even old MR for reverse polish? :-/

**Developer response:** Thanks for the feedback. In a first step, version 2.2 now has copy&paste in the high precision mode. Parenthesis are indeed on my todo list.

### 3/5 — Some Suggestions

*2018-11-15*

Right now it is little more than a four-function calculator. Thankfully there is also a copy function that allows export of results. But there is no paste function (to allow imports). That would be an easy addition. Memory and/or parentheses functions are also easy additions that would help with complex calculations. And perhaps a pi button? And a factorial button? The latter would be useful for implementing Maclaurin series.

**Developer response:** Try rotating your phone :)
In a first step, version 2.2 now has copy&paste in the high precision mode. Parentheses would also be nice, they are on my todo list.

## Frequently asked questions about Better Calculator

### What is the maximum number of digits Better Calculator supports?

Better Calculator supports calculations with up to one million digits, offering exceptional precision for complex mathematical problems.

### Is Better Calculator free to use?

Yes, Better Calculator is available for free, with no in-app purchases or advertisements.

### What devices is Better Calculator compatible with?

Better Calculator is supported on Mac, iPhone, iPad, and iPod devices.

### How can I report a bug in Better Calculator?

As an open-source hobby project, you can report bugs by creating an issue on the project's GitHub page at https://github.com/joachimneumann/Calculator.

### What is the age rating for Better Calculator?

Better Calculator has an age rating of 4+, making it suitable for a wide range of users.

### When was Better Calculator last updated?

The latest version of Better Calculator was released on November 7, 2021.

### What is the user rating for Better Calculator?

Better Calculator has an average rating of 3.1 stars based on 7 ratings.

## Version history (last 5 releases)

### 3.0 — 2021-11-07

Up to one million digits and new design. Also runs on MacOS.

### 2.3 — 2020-03-27

Compatibility with iOS 13.4

### 2.2 — 2020-01-22

copy & paste in the high-precision display

### 2.1 — 2020-01-21

improved scrolling for large numbers

### 2.0.2 — 2019-12-17

improved layout

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## More apps by Joachim Neumann

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All apps by Joachim Neumann: https://appshunter.io/developer/741515887

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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 2026-06-04.*