# BigNum Calc vs Random Letter

The clearest difference is price: BigNum Calc at Free against Random Letter's $0.99. Random Letter's advantage is device support. On in-app purchases and iOS requirement there is nothing between them.

BigNum Calc is free to download; Random Letter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | BigNum Calc | Random Letter |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | — | No |
| Size | 40 MB | 49 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wei WEI](https://appshunter.io/developer/1483741762) | [Dmytro Plekhotkin](https://appshunter.io/developer/1639719963) |

## What reviewers say

### BigNum Calc

[App page](https://appshunter.io/ios/app/bignum-calc/id6444735525)

**In-app purchases:** none


### Random Letter

[App page](https://appshunter.io/ios/app/random-letter-full-screen/id6444909744)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BigNum Calc free?

BigNum Calc is free to download, with no in-app purchases.

### Is Random Letter free?

Random Letter costs $0.99, with no in-app purchases.

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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.*