# Phidden vs HTML Viewer Pro

The clearest difference is review sentiment: Phidden at 86% against HTML Viewer Pro's 47%. Phidden also leads on ads (none vs shown) and update cadence (every 7 months vs every 15 months). HTML Viewer Pro's advantage is iOS requirement (12.0 vs 16). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Phidden sells 1 one-off in-app purchase and HTML Viewer Pro sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Phidden ships an update every 7 months, HTML Viewer Pro every 15 months. The most recent releases landed on June 25, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Phidden | HTML Viewer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (45 ratings)](https://appshunter.io/ios/app/html-viewer-pro/id1521187909/reviews)** |
| Number of ratings | — | **45** |
| Positive reviews | **85.7% of reviews** | 47.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 7 months** | Every 15 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 43 MB | 33 MB |
| Requires iOS | 16 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Vanni Giannozzi](https://appshunter.io/developer/367334222) | [Hayato Shimizu](https://appshunter.io/developer/1207195348) |

## What reviewers say

### Phidden

[App page](https://appshunter.io/ios/app/phidden/id682818494)

Embed secret messages within your photos. Share these images, and only recipients with the app can reveal the hidden text. Avoid image compression to ensure messages remain intact.

**Highlights:** Embed secret messages in photos, Reveal hidden messages with the app, Share encoded photos, Preserve message integrity, Secure sharing methods

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phidden Network access and ... | $0.99 | one-time |


### 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 |


## Frequently asked questions

### Is Phidden free?

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

### Is HTML Viewer Pro free?

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

### Do Phidden or HTML Viewer Pro have ads?

HTML Viewer Pro shows ads; Phidden does not.

### Which is updated more often, Phidden or HTML Viewer Pro?

Phidden ships an update every 7 months, and HTML Viewer Pro every 15 months. Most recently, Phidden was updated on June 25, 2026 and HTML Viewer Pro on September 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*