# Storybase vs Karatu

The clearest difference is in-app purchases: Karatu at none against Storybase's 3. Karatu also leads on update cadence (daily vs every 5 days). Storybase's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Storybase sells 3 in-app purchases, starting at $17.99 per month. Karatu asks for nothing beyond the download.

Storybase ships an update every 5 days, Karatu daily. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Storybase | Karatu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/storybase/id6747148478/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Storyline Creative, LLC](https://appshunter.io/developer/1820064660) | [Umar Rufai](https://appshunter.io/developer/1895570634) |

## What reviewers say

### Storybase

[App page](https://appshunter.io/ios/app/storybase/id6747148478)

This app offers an interactive reading and listening experience for books, connecting readers directly with authors. Authors can engage their audience, track engagement, and build relationships beyond the book itself.

**Highlights:** Immersive audiobook/ebook sync, In-app AI questions, Shareable chapters, Author-reader connection, Reader engagement tracking, Customizable offers, AI prompts for readers

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reader Premium | $17.99 | per month |
| Author Plus | $107.99 | per month |
| Author Pro | $214.99 | per month |


### Karatu

[App page](https://appshunter.io/ios/app/karatu/id6765975970)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Storybase free?

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

### Is Karatu free?

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

### Do Storybase or Karatu have ads?

Neither Storybase nor Karatu shows ads.

### Which is updated more often, Storybase or Karatu?

Storybase ships an update every 5 days, and Karatu daily. Most recently, Storybase was updated on October 13, 2026 and Karatu on October 6, 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.*