# expt vs Book! Book! Book! Daily Reader

expt and Book! Book! Book! Daily Reader are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | expt | Book! Book! Book! Daily Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Size | 45 MB | 44 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arthur Park](https://appshunter.io/developer/1448983841) | [hyunho Kim](https://appshunter.io/developer/1873769250) |

## What reviewers say

### expt

[App page](https://appshunter.io/ios/app/expt-file-reader/id6760808933)

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

**In-app purchases:** none


### Book! Book! Book! Daily Reader

[App page](https://appshunter.io/ios/app/book-book-book-daily-reader/id6779088552)

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

**In-app purchases:** none


## Frequently asked questions

### Is expt free?

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

### Is Book! Book! Book! Daily Reader free?

Book! Book! Book! Daily Reader is free to download, with no in-app purchases.

### Do expt or Book! Book! Book! Daily Reader have ads?

Neither expt nor Book! Book! Book! Daily Reader 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.*