# HTML Viewer Pro vs Who's in space?

The clearest difference is rating: HTML Viewer Pro at 3.9 against Who's in space?'s 3.2. HTML Viewer Pro also leads on review sentiment (49% vs 33%) and ratings volume (45 vs 11). Who's in space?'s advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. HTML Viewer Pro sells 2 in-app purchases, starting at $1.99 per month. Who's in space? asks for nothing beyond the download.

HTML Viewer Pro holds the better App Store score, 3.9 against 3.2. Both are backed by a comparable volume of ratings — 45 and 11 respectively. Written reviews point the same way: 49% of HTML Viewer Pro's written reviews are positive against 33% of Who's in space?'s.

HTML Viewer Pro ships an update every 15 months, Who's in space? every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | HTML Viewer Pro | Who's in space? |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (45 ratings)](https://appshunter.io/ios/app/html-viewer-pro/id1521187909/reviews)** | [3.2 (11 ratings)](https://appshunter.io/ios/app/whos-in-space/id1563352663/reviews) |
| Number of ratings | **45** | 11 |
| Positive reviews | **49.1% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 12 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hayato Shimizu](https://appshunter.io/developer/1207195348) | [Ryan Fielder](https://appshunter.io/developer/1563352665) |

## What reviewers say

### HTML Viewer Pro

[App page](https://appshunter.io/ios/app/html-viewer-pro/id1521187909)

View HTML source code from URLs or directly from Safari. This app offers multi-tab browsing, bookmarking, and search functionality. Customize the display with various themes, fonts, and user agents.

**Highlights:** View source code from URLs, View source code from Safari share, Multi-tab browsing, Bookmark and history management, Keyword search in source code, Switch between static and dynamic HTML, Customizable themes and fonts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly plan) | $1.99 | per month |
| Premium (Buying out) | $19.99 | one-time |


### Who's in space?

[App page](https://appshunter.io/ios/app/whos-in-space/id1563352663)

This app provides real-time information on the number of people currently in space. Explore astronaut profiles, track upcoming and past launches, and monitor the ISS's live location. Features a redesigned interface with customizable themes and new home screen widgets.

**Highlights:** Real-time astronaut count, Astronaut background and career details, Upcoming and past launch information, Live ISS location tracking, Customizable themes and accent colors, Home screen widgets

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

**In-app purchases:** none


## Frequently asked questions

### Is HTML Viewer Pro free?

HTML Viewer Pro is free to download, with in-app purchases available.

### Is Who's in space? free?

Who's in space? is free to download, with no in-app purchases.

### Which has better reviews, HTML Viewer Pro or Who's in space??

HTML Viewer Pro is rated higher. HTML Viewer Pro averages 3.9 out of 5 from 45 ratings, while Who's in space? averages 3.2 from 11 ratings.

### Do HTML Viewer Pro or Who's in space? have ads?

HTML Viewer Pro shows ads; Who's in space? does not.

### Which is updated more often, HTML Viewer Pro or Who's in space??

HTML Viewer Pro ships an update every 15 months, and Who's in space? every 3 months. Most recently, HTML Viewer Pro was updated on October 24, 2026 and Who's in space? on October 24, 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.*