# AI Author vs Roll Zero

The clearest difference is device support: AI Author at 3 against Roll Zero's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. AI Author sells 3 in-app purchases, starting at $2.99 per 7 days and Roll Zero sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

AI Author ships an update every 2 weeks, Roll Zero every 11 days. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | AI Author | Roll Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (268 ratings)](https://appshunter.io/ios/app/ai-author-write-like-writers/id6445870532/reviews)** | — |
| Number of ratings | **268** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Subscription | — |
| Size | 51 MB | 68 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [faisal khalid](https://appshunter.io/developer/671706631) | [Conecta Media LLC](https://appshunter.io/developer/1891168642) |

## What reviewers say

### AI Author

[App page](https://appshunter.io/ios/app/ai-author-write-like-writers/id6445870532)

Transform your writing with AI by emulating the styles of over 1000 renowned authors. Easily generate books, articles, and stories, then export them as professional PDFs. Seamlessly integrate with note-taking apps like GoodNotes.

**Highlights:** Emulate 1000+ author writing styles, AI-powered book, article, and story writing, Add custom author styles, Convert text to professional PDF, Copy text to GoodNotes, Unlimited writing and conversions (premium)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WEEKLY | $2.99 | per 7 days |
| MONTHLY | $9.99 | per month |
| YEARLY | $29.99 | per year |


### Roll Zero

[App page](https://appshunter.io/ios/app/roll-zero-screenshot-inbox/id6796734317)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Roll Zero Pro Monthly | $4.99 | per month |
| Roll Zero Pro Annual | $29.99 | per year |


## Frequently asked questions

### Is AI Author free?

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

### Is Roll Zero free?

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

### Do AI Author or Roll Zero have ads?

Neither AI Author nor Roll Zero shows ads.

### Which is updated more often, AI Author or Roll Zero?

AI Author ships an update every 2 weeks, and Roll Zero every 11 days. Most recently, AI Author was updated on October 15, 2026 and Roll Zero 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.*