# AI Author vs ePay PASS

The clearest difference is in-app purchases: ePay PASS at none against AI Author's 3. AI Author's advantage is update cadence (every 2 weeks vs every 6 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. ePay PASS asks for nothing beyond the download.

AI Author ships an update every 2 weeks, ePay PASS every 6 months. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | AI Author | ePay PASS |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Monetization | Subscription | — |
| Size | 51 MB | 10 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [faisal khalid](https://appshunter.io/developer/671706631) | [Alliance Payment Services Limited TA EPAY](https://appshunter.io/developer/1484378405) |

## 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 |


### ePay PASS

[App page](https://appshunter.io/ios/app/epay-pass/id6511249227)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AI Author free?

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

### Is ePay PASS free?

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

### Do AI Author or ePay PASS have ads?

Neither AI Author nor ePay PASS shows ads.

### Which is updated more often, AI Author or ePay PASS?

AI Author ships an update every 2 weeks, and ePay PASS every 6 months. Most recently, AI Author was updated on October 2, 2026 and ePay PASS on September 25, 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.*