# OspreyAi Mobile vs HTML Reader Offline

The clearest difference is in-app purchases: OspreyAi Mobile at none against HTML Reader Offline's 1. OspreyAi Mobile also leads on update cadence (every 11 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. HTML Reader Offline sells 1 one-off in-app purchase. OspreyAi Mobile asks for nothing beyond the download.

OspreyAi Mobile ships an update every 11 days, HTML Reader Offline every 6 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OspreyAi Mobile | HTML Reader Offline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/html-reader-offline/id6778323048/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 2 MB |
| Requires iOS | **15.1** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Philip Cannata](https://appshunter.io/developer/1894975147) | [发达 陈](https://appshunter.io/developer/6776674425) |

## What reviewers say

### OspreyAi Mobile

[App page](https://appshunter.io/ios/app/ospreyai-mobile/id6762708615)

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

**In-app purchases:** none


### HTML Reader Offline

[App page](https://appshunter.io/ios/app/html-reader-offline/id6778323048)

This app allows users to read local HTML and ZIP files offline. It's designed for developers, students, and learners to access documentation and course materials on their devices without an internet connection. Features include smart ZIP support, a built-in reader, table of contents, bookmarks, and reading progress tracking.

**Highlights:** Offline HTML and ZIP file reading, Smart ZIP support with index.html detection, Built-in WKWebView reader, Auto-generated table of contents, Bookmarks and reading progress saving, Light, Dark, and Auto themes, Long-image export

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Cup of Coffee | $0.99 | one-time |


## Frequently asked questions

### Is OspreyAi Mobile free?

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

### Is HTML Reader Offline free?

HTML Reader Offline is free to download, with in-app purchases available.

### Do OspreyAi Mobile or HTML Reader Offline have ads?

Neither OspreyAi Mobile nor HTML Reader Offline shows ads.

### Which is updated more often, OspreyAi Mobile or HTML Reader Offline?

OspreyAi Mobile ships an update every 11 days, and HTML Reader Offline every 6 weeks. Most recently, OspreyAi Mobile was updated on November 5, 2026 and HTML Reader Offline on October 31, 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.*