Comparison

Phidden vs HTML Viewer Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Phidden

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
Read full description

Welcome to Phidden! Hide your message in your photo. With this new App you will be able to send your secret messages to your friends and let others believe that you have only sent them a photo! All you have to do is choose your best photo, write your message and Phidden does the rest! It will hide your message within the photo and all you need to do is share ! Whoever receives it will be able to read the message contained only by opening it with Phidden and with no other App or program! ATTENTION The messages hidden in Phidden can only be ‘decoded’ with the same App! For the same reason every photo not ‘encoded’ by Phidden if ‘decoded’ by the same App will return a blank and incomprehensible message! This is not to be considered an error but a non-coded photo! COMPRESSION IS THE ENEMY OF PHIDDEN! ANY FORM OF COMPRESSION WILL COMPROMISE THE HIDDEN MESSAGE! Many file sharing, e-mail client, social network and sharing services usually have a habit of compressing images, so do not entrust them with your encoded photos if you don’t want to lose the hidden message! For the same reason photos should be attached and sent in the original dimensions, as any form of compression will compromise the message and will make it illegible and not decodable! The safest way to maintain the integrity of the secret message is to post the image on Phidden Network ! Other secure methods remain saved in the library, AirDrop, messages or emails (only if sent at maximum resolution). Feel free to make personal tests with the services you usually use to verify if the message remains decodable. NOTE: the use of Phidden, the content of the hidden messages in the photos and their disclosure is to be considered the free choice of the user, the developer cannot be held in any way responsible. Don't forget to leave a review! Your feedback is precious! Thanks for your support ACKNOWLEDGMENTS A warm embrace and particular thanks goes to my friends @Alessio_Vinerbi and @lkaroweb for their help with the code that drives the engine of the App! Heartfelt thanks, guys! Photo and background image by unsplash.com

About

HTML Viewer Pro

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
Read full description

It is a multi-functional HTML source viewer. You can view the source code by URLs, and of course, you can also view the source code from Safari's share button. Since it is the latest version of the app, it covers almost all the features of other apps. [Features & Functions] - Browser and source code switching. - Multi-tab browsing. - Display bookmarks and history. - Search for keywords in the source code. - Switch between static and dynamic HTML. - Changing the user agent. - Display non-HTML languages. - Use the cloud, such as iCloud, Dropbox, OneDrive, etc. - Use local files in the iPhone and iPad. - Balanced light operation. [View source code] - About 90 different design themes available. - Change the font, size and line spacing. - Switch between static and dynamic HTML. - Support for almost all programming languages (over 180). [Terms & Conditions] https://www.hayaya.net/terms-conditions/html-viewer.html [Privacy Policy] https://www.hayaya.net/privacy-policy/html-viewer.html

Screenshots

Phidden4 screens
HTML Viewer Pro4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Phidden versus HTML Viewer Pro: the parameters behind the verdict, then further details
ParameterPhiddenHTML Viewer Pro
PriceFreeFree
Rating—3.9 (45 ratings) — better
Positive reviews85.7% of reviews — better47.4% of reviews
Number of ratings—45 — better
Update frequencyEvery 7 months — betterEvery 15 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1612.0 — better
Further details — not scored
Size43 MB33 MB
Age rating4+17+
DeveloperVanni GiannozziHayato Shimizu

Customer experience

Phidden

Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

HTML Viewer Pro

All ratings45 ratings
Positive68.9%
Neutral8.9%
Negative22.2%
Written reviews38 reviews
Positive47.4%
Neutral10.5%
Negative42.1%

In-app purchases

1 purchases

Phidden

One-time1
  • Phidden Network access and ...$0.99
2 purchases

HTML Viewer Pro

Subscriptions1
  • Premium (Monthly plan)$1.991 Month
One-time1
  • Premium (Buying out)$19.99

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.

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