# Big Number Calculator+ vs Calcsharp Pro

The clearest difference is price: Big Number Calculator+ at Free against Calcsharp Pro's $1.99. Calcsharp Pro's advantage is update cadence (every 2 days vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Big Number Calculator+ is free to download; Calcsharp Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Big Number Calculator+ ships an update every 4 months, Calcsharp Pro every 2 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Big Number Calculator+ | Calcsharp Pro |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/big-number-calculator-plus/id1541255205/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 19 MB | 4 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Kunio Takeuchi](https://appshunter.io/developer/851499887) | [Nikola Stepan](https://appshunter.io/developer/398370680) |

## What reviewers say

### Big Number Calculator+

[App page](https://appshunter.io/ios/app/big-number-calculator-plus/id1541255205)

Perform calculations with extremely large numbers, up to 66,000 digits. Supports addition, subtraction, multiplication, and division, with options for different calculation engines and data input methods. Results can be saved and printed in formatted text files.

**Highlights:** Handles up to 66,000 digits, Addition, subtraction, multiplication, division, Selectable calculation engines (Swift, Objective-C), Load data from files (txt, rtf, rtfd), Automatic data formatting for printing and saving, Customizable number separators

**Features:** Vision Pro support

**In-app purchases:** none


### Calcsharp Pro

[App page](https://appshunter.io/ios/app/calcsharp-pro/id1644401194)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Big Number Calculator+ free?

Big Number Calculator+ is free to download, with no in-app purchases.

### Is Calcsharp Pro free?

Calcsharp Pro costs $1.99, with no in-app purchases.

### Do Big Number Calculator+ or Calcsharp Pro have ads?

Neither Big Number Calculator+ nor Calcsharp Pro shows ads.

### Which is updated more often, Big Number Calculator+ or Calcsharp Pro?

Big Number Calculator+ ships an update every 4 months, and Calcsharp Pro every 2 days. Most recently, Big Number Calculator+ was updated on November 3, 2026 and Calcsharp Pro on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*