# calcMod vs Big Number Calculator+

The clearest difference is price: Big Number Calculator+ at Free against calcMod's $1.99. Big Number Calculator+ also leads on update cadence (every 4 months vs every 36 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

calcMod ships an update every 36 months, Big Number Calculator+ every 4 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | calcMod | Big Number Calculator+ |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/big-number-calculator-plus/id1541255205/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 1 MB | 19 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alain Cardinaux](https://appshunter.io/developer/1443066124) | [Kunio Takeuchi](https://appshunter.io/developer/851499887) |

## What reviewers say

### calcMod

[App page](https://appshunter.io/ios/app/calcmod-blk/id1445938178)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is calcMod free?

calcMod costs $1.99, with no in-app purchases.

### Is Big Number Calculator+ free?

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

### Do calcMod or Big Number Calculator+ have ads?

Neither calcMod nor Big Number Calculator+ shows ads.

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

calcMod ships an update every 36 months, and Big Number Calculator+ every 4 months. Most recently, calcMod was updated on October 20, 2026 and Big Number Calculator+ on October 24, 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.*