# QuickScan Book Leveler vs ReadOtter

QuickScan Book Leveler and ReadOtter both sit at 4.7 stars, but that hides the real split: 60% of ReadOtter's written reviews are positive against 43% of QuickScan Book Leveler's. QuickScan Book Leveler's advantage is ratings volume (925 vs 41). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. QuickScan Book Leveler sells 4 in-app purchases, starting at $1.99 per month and ReadOtter sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for QuickScan Book Leveler against 4.7 for ReadOtter. That said, the two scores are not equally well evidenced: QuickScan Book Leveler has 925 ratings behind it against 41, so its average is the more settled of the two. Written reviews are what separate them: 43% of QuickScan Book Leveler's written reviews are positive against 60% of ReadOtter's.

QuickScan Book Leveler ships an update every 5 weeks, ReadOtter every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | QuickScan Book Leveler | ReadOtter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (925 ratings)](https://appshunter.io/ios/app/quickscan-book-leveler/id1567675801/reviews) | **[4.7 (41 ratings)](https://appshunter.io/ios/app/readotter-classroom-library/id6745129261/reviews)** |
| Number of ratings | **925** | 41 |
| Positive reviews | 42.5% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 34 MB | 35 MB |
| Requires iOS | 18.0 | **17.2** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [If Then Dev, LLC](https://appshunter.io/developer/583672055) | [Human Theoria LLC](https://appshunter.io/developer/1810896717) |

## What reviewers say

### QuickScan Book Leveler

[App page](https://appshunter.io/ios/app/quickscan-book-leveler/id1567675801)

Instantly determine the reading level of any book by scanning its barcode. Supports multiple leveling systems including AR, Lexile, and Guided Reading. Organize and export book lists for classroom or personal use.

**Highlights:** Scan ISBN for reading levels, Supports 7 reading level systems, Save and sort scan history, Export book lists to CSV/PDF, Syncs across devices, Offline lookup capability, No ads

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Scans for a Month | $1.99 | per month |
| Unlimited Scans for a Year | $19.99 | per year |
| Unlimited Scans (Annual Commitment) | $19.99 | per year |
| Unlimited Scans | $49.99 | one-time |

**What reviewers like**

- 🚀 Quick and efficient
- 👍 User-friendly
- 💡 Useful for teachers and librarians

**What reviewers complain about**

- 🐛 Inconsistent book leveling
- ⚠️ Limited free scans per day
- 🔍 Inability to find many books
- 💰 Misleading subscription information

**Reported bugs**

- App crashes frequently
- Doesn't recognize previously scanned books after purchase

**Requested features**

- Save scanned books in a library
- Expand book database


### ReadOtter

[App page](https://appshunter.io/ios/app/readotter-classroom-library/id6745129261)

This app helps teachers manage their classroom libraries by cataloging books, tracking student checkouts, and generating reading logs. It offers a free tier with core features and a premium subscription for advanced functionalities like cloud sync and student self-checkout.

**Highlights:** Library cataloging, Student checkout tracking, Digital reading logs, Book categorization, iCloud sync and backup, Student self-checkout kiosk

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReadOtter Premium | $2.99 | per month |
| ReadOtter Premium | $19.99 | per year |


## Frequently asked questions

### Is QuickScan Book Leveler free?

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

### Is ReadOtter free?

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

### Which has better reviews, QuickScan Book Leveler or ReadOtter?

ReadOtter is rated higher. QuickScan Book Leveler averages 4.7 out of 5 from 925 ratings, while ReadOtter averages 4.7 from 41 ratings.

### Do QuickScan Book Leveler or ReadOtter have ads?

Neither QuickScan Book Leveler nor ReadOtter shows ads.

### Which is updated more often, QuickScan Book Leveler or ReadOtter?

QuickScan Book Leveler ships an update every 5 weeks, and ReadOtter every 2 months. Most recently, QuickScan Book Leveler was updated on November 3, 2026 and ReadOtter 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.*