# Appbook Viewer vs Focus by Artex Studios

The clearest difference is in-app purchases: Appbook Viewer at none against Focus by Artex Studios's 4. Appbook Viewer also leads on iOS requirement (12.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Focus by Artex Studios sells 4 in-app purchases, starting at $0.99 per 7 days. Appbook Viewer asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Appbook Viewer | Focus by Artex Studios |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 22 MB | 4 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Han Yong Jun](https://appshunter.io/developer/1034271952) | [Artex Studios, Inc.](https://appshunter.io/developer/399983944) |

## What reviewers say

### Appbook Viewer

[App page](https://appshunter.io/ios/app/appbook-viewer/id1590989191)

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

**In-app purchases:** none


### Focus by Artex Studios

[App page](https://appshunter.io/ios/app/focus-by-artex-studios/id6756219192)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $19.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Appbook Viewer free?

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

### Is Focus by Artex Studios free?

Focus by Artex Studios is free to download, with in-app purchases available.

### Do Appbook Viewer or Focus by Artex Studios have ads?

Neither Appbook Viewer nor Focus by Artex Studios shows ads.

### Which is updated more often, Appbook Viewer or Focus by Artex Studios?

Appbook Viewer ships an update every 2 months, and Focus by Artex Studios every 2 months. Most recently, Appbook Viewer was updated on October 27, 2026 and Focus by Artex Studios 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.*