# BookFoundry vs TrendHook

The clearest difference is update cadence: TrendHook at every 6 days against BookFoundry's monthly. TrendHook also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. BookFoundry sells 5 in-app purchases, starting at $14.99 per month and TrendHook sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

BookFoundry ships an update monthly, TrendHook every 6 days. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | BookFoundry | TrendHook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bookfoundry-ai-book-writer/id6758406043/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 52 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Nearby](https://appshunter.io/developer/1673971647) | [Yusuf Nadaroglu](https://appshunter.io/developer/1690367121) |

## What reviewers say

### BookFoundry

[App page](https://appshunter.io/ios/app/bookfoundry-ai-book-writer/id6758406043)

This AI-powered writing app helps users create complete books, stories, and novels quickly. It focuses on generating natural, human-like text, allowing users to transform ideas into structured narratives with customizable tone and style.

**Highlights:** Generate full books and stories in minutes, Human-like writing style and flow, Turn ideas into structured narratives, Customize tone, style, and direction, Simple and powerful interface, AI-powered content creation

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BookFoundry Premium | $14.99 | per month |
| BookFoundry Premium | $99.99 | per year |
| 1 Book Credit | $14.99 | one-time |
| 3 Book Credits (Best Value) | $29.99 | one-time |
| 10 Book Credits | $79.99 | one-time |


### TrendHook

[App page](https://appshunter.io/ios/app/trendhook-creator-analytics/id6789477589)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrendHook Weekly Subscription | $4.99 | per 7 days |
| TrendHook Monthly Subscription | $19.99 | per month |
| TrendHook Yearly Subscription | $99.99 | per year |


## Frequently asked questions

### Is BookFoundry free?

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

### Is TrendHook free?

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

### Do BookFoundry or TrendHook have ads?

Neither BookFoundry nor TrendHook shows ads.

### Which is updated more often, BookFoundry or TrendHook?

BookFoundry ships an update monthly, and TrendHook every 6 days. Most recently, BookFoundry was updated on October 18, 2026 and TrendHook on October 15, 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.*