# Plotwist Book Club vs AuthorAZ

The clearest difference is ads: AuthorAZ at none against Plotwist Book Club's shown. Plotwist Book Club's advantage is update cadence (every 8 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Plotwist Book Club sells 2 in-app purchases, starting at $4.99 per month and AuthorAZ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Plotwist Book Club ships an update every 8 days, AuthorAZ every 2 weeks. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Plotwist Book Club | AuthorAZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Size | 48 MB | 62 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Joshua Thomas](https://appshunter.io/developer/1725717292) | [Alex Filip](https://appshunter.io/developer/1013883929) |

## What reviewers say

### Plotwist Book Club

[App page](https://appshunter.io/ios/app/plotwist-book-club/id6759800648)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plotwist pro Monthly | $4.99 | per month |
| Plotwist Pro Annual | $49.99 | per year |


### AuthorAZ

[App page](https://appshunter.io/ios/app/authoraz/id6781582501)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English | $29.99 | one-time |


## Frequently asked questions

### Is Plotwist Book Club free?

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

### Is AuthorAZ free?

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

### Do Plotwist Book Club or AuthorAZ have ads?

Plotwist Book Club shows ads; AuthorAZ does not.

### Which is updated more often, Plotwist Book Club or AuthorAZ?

Plotwist Book Club ships an update every 8 days, and AuthorAZ every 2 weeks. Most recently, Plotwist Book Club was updated on October 6, 2026 and AuthorAZ on October 4, 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.*