# ID vs AI Author

The clearest difference is in-app purchases: ID at none against AI Author's 3. AI Author's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AI Author sells 3 in-app purchases, starting at $2.99 per 7 days. ID asks for nothing beyond the download.

ID ships an update every 3 months, AI Author every 2 weeks. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ID | AI Author |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Subscription |
| Size | 47 MB | 51 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IDmobile](https://appshunter.io/developer/1596784656) | [faisal khalid](https://appshunter.io/developer/671706631) |

## What reviewers say

### ID

[App page](https://appshunter.io/ios/app/id-mobile/id1596784384)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ID free?

ID is free to download, with no in-app purchases.

### Is AI Author free?

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

### Do ID or AI Author have ads?

Neither ID nor AI Author shows ads.

### Which is updated more often, ID or AI Author?

ID ships an update every 3 months, and AI Author every 2 weeks. Most recently, ID was updated on October 4, 2026 and AI Author on October 2, 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.*