# Crypto String vs Length Pro

The clearest difference is price: Length Pro at Free against Crypto String's $0.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Length Pro is free to download; Crypto String costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Crypto String | Length Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 0 MB | 65 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Xu Wang](https://appshunter.io/developer/1216698112) | [ROKAS S.A.](https://appshunter.io/developer/6797660256) |

## What reviewers say

### Crypto String

[App page](https://appshunter.io/ios/app/crypto-string-aes-encrypt/id6754283595)

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

**In-app purchases:** none


### Length Pro

[App page](https://appshunter.io/ios/app/length-pro/id6797660254)

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

**In-app purchases:** none


## Frequently asked questions

### Is Crypto String free?

Crypto String costs $0.99, with no in-app purchases.

### Is Length Pro free?

Length Pro is free to download, with no in-app purchases.

### Do Crypto String or Length Pro have ads?

Neither Crypto String nor Length Pro shows ads.

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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.*