# Solity Viewer vs K

The clearest difference is in-app purchases: Solity Viewer at none against K's 1. Solity Viewer also leads on iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. K sells 1 in-app purchase, starting at $1.99 per year. Solity Viewer asks for nothing beyond the download.

## The numbers

| Metric | Solity Viewer | K |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Size | 103 MB | 19 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SOLITY CO., LTD.](https://appshunter.io/developer/1261813930) | [Kitta Co.](https://appshunter.io/developer/1896674871) |

## What reviewers say

### Solity Viewer

[App page](https://appshunter.io/ios/app/solity-viewer/id6480092893)

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

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-card-reader/id6770570934)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Mode | $1.99 | per year |


## Frequently asked questions

### Is Solity Viewer free?

Solity Viewer is free to download, with no in-app purchases.

### Is K free?

K is free to download, with in-app purchases available.

### Do Solity Viewer or K have ads?

Neither Solity Viewer nor K 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.*