# Book Stereo vs DualTextScanner

The clearest difference is iOS requirement: Book Stereo at 13.0 against DualTextScanner's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Book Stereo sells 2 in-app purchases, starting at $9.99 per month and DualTextScanner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Book Stereo ships an update every 3 months, DualTextScanner every 2 months. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Book Stereo | DualTextScanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 89 MB | 26 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ACube Games](https://appshunter.io/developer/1549245085) | [AIビジョンテクノロジー株式会社](https://appshunter.io/developer/1826705260) |

## What reviewers say

### Book Stereo

[App page](https://appshunter.io/ios/app/book-stereo/id6764363129)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $9.99 | per month |
| Ultimate Monthly | $19.99 | per month |


### DualTextScanner

[App page](https://appshunter.io/ios/app/dualtextscanner/id6774780922)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DualText Scanner Pro | $2.99 | one-time |


## Frequently asked questions

### Is Book Stereo free?

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

### Is DualTextScanner free?

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

### Do Book Stereo or DualTextScanner have ads?

Neither Book Stereo nor DualTextScanner shows ads.

### Which is updated more often, Book Stereo or DualTextScanner?

Book Stereo ships an update every 3 months, and DualTextScanner every 2 months. Most recently, Book Stereo was updated on October 16, 2026 and DualTextScanner on October 7, 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.*