# 极速AI vs EPUB Reader

The clearest difference is price: 极速AI at Free against EPUB Reader's $0.99. 极速AI also leads on in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 3 months). On ads and device support there is nothing between them.

极速AI is free to download; EPUB Reader costs $0.99 up front. EPUB Reader sells 3 in-app purchases, starting at $0.99 per 7 days. 极速AI asks for nothing beyond the download.

极速AI ships an update every 2 weeks, EPUB Reader every 3 months. The most recent releases landed on October 19, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 极速AI | EPUB Reader |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai/id6747735748/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 27 MB | 15 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Juxue Network Co., Ltd.](https://appshunter.io/developer/1625047245) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### 极速AI

[App page](https://appshunter.io/ios/app/ai/id6747735748)

This intelligent document analysis tool uses OCR and visual models to accurately extract text, charts, and formulas from over 10 file formats including Word, PPT, and PDF. It supports previewing, editing, and exporting in Markdown, HTML, Word, JSON, and LaTeX, streamlining document processing.

**Highlights:** OCR and visual model recognition, Extracts text, charts, and formulas, Supports 10+ file formats, Exports to Markdown, HTML, Word, JSON, LaTeX, Preview and edit extracted content, Handles office, education, and finance documents

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

**In-app purchases:** none


### EPUB Reader

[App page](https://appshunter.io/ios/app/epub-reader-for-epub-book/id6756795788)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Insight Reader Premium - weekly | $0.99 | per 7 days |
| Insight Reader Premium - yearly | $39.99 | per year |
| EPUB365 Premium  - lifetime | $59.99 | one-time |


## Frequently asked questions

### Is 极速AI free?

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

### Is EPUB Reader free?

EPUB Reader costs $0.99, and also offers in-app purchases.

### Do 极速AI or EPUB Reader have ads?

Neither 极速AI nor EPUB Reader shows ads.

### Which is updated more often, 极速AI or EPUB Reader?

极速AI ships an update every 2 weeks, and EPUB Reader every 3 months. Most recently, 极速AI was updated on October 19, 2026 and EPUB Reader on October 30, 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.*