# Audio Book Reader vs Quad

The clearest difference is iOS requirement: Quad at 15.0 against Audio Book Reader's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Audio Book Reader sells 2 in-app purchases, starting at $2.99 per month and Quad sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Audio Book Reader ships an update every 3 days, Quad every 6 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Audio Book Reader | Quad |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/quad-ai-syllabus-planner/id6781746833/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 52 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AI Conveyor Inc.](https://appshunter.io/developer/1873589982) | [Vista Wholesale Central LLC](https://appshunter.io/developer/1873775285) |

## What reviewers say

### Audio Book Reader

[App page](https://appshunter.io/ios/app/audio-book-reader-readbeam/id6761305311)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $2.99 | per month |
| Plus | $4.99 | per month |


### Quad

[App page](https://appshunter.io/ios/app/quad-ai-syllabus-planner/id6781746833)

This app automatically extracts all deadlines, assignments, and important dates from your course syllabi. It organizes them into a single, sortable list or calendar view, provides timely reminders, and helps you track your grades throughout the semester. You can also find study groups within your classes.

**Highlights:** Automatic syllabus scanning, All deadlines in one place, Calendar integration, Grade tracking and finals calculator, Timely deadline reminders, Study group finder

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quad Plus Monthly | $6.99 | per month |
| Quad+ Yearly | $39.99 | per year |


## Frequently asked questions

### Is Audio Book Reader free?

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

### Is Quad free?

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

### Do Audio Book Reader or Quad have ads?

Neither Audio Book Reader nor Quad shows ads.

### Which is updated more often, Audio Book Reader or Quad?

Audio Book Reader ships an update every 3 days, and Quad every 6 days. Most recently, Audio Book Reader was updated on November 9, 2026 and Quad on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*