HTML Viewer Pro vs Percent X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Percent X
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This is a simple app that handles daily percentage tasks in a neat new way.The page with the three blue fields allows you to select the three numbers you know. You must put the VALUES and PERCENTAGES either horizontally or vertically, NOT diagonally. The real calculation is X = (C / A) * B A B C X If your X is a VALUE, put the other VALUE in either B or C, then the corresponding PERCENTAGES Ex: What is 30% of 200? A=100 B=200 C=30 or A=100 B=30 C=200 If your X is a PERCENTAGE, put the other PERCENTAGE in either B or C, then the corresponding VALUES Ex: What % of 200 is 30? A=200 B=100 C=30 or A=200 B=30 C=100 To see more apps like this, go to www.discobajas.com
Screenshots
Verdict
The clearest difference is price: HTML Viewer Pro at Free against Percent X's $0.49. Percent X's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement 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
HTML Viewer Pro is free to download; Percent X costs $0.49 up front. HTML Viewer Pro sells 2 in-app purchases, starting at $1.99 per month. Percent X asks for nothing beyond the download.
HTML Viewer Pro ships an update every 15 months, Percent X every 4 months. The most recent releases landed on September 5, 2026 and September 16, 2026 respectively.
| Parameter | HTML Viewer Pro | Percent X |
|---|---|---|
| Price | Free — better | $0.49 |
| Rating | 3.9 (45 ratings) — better | — |
| Positive reviews | 47.4% of reviews | — |
| Number of ratings | 45 — better | — |
| Update frequency | Every 15 months | Every 4 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 33 MB | 0 MB |
| Age rating | 17+ | 4+ |
| Developer | Hayato Shimizu | Stein Erik Nilsen |
In-app purchases
HTML Viewer Pro
- Premium (Monthly plan)$1.991 Month
- Premium (Buying out)$19.99
Percent X
No in-app purchases
Questions
Is HTML Viewer Pro free?
Is Percent X free?
Do HTML Viewer Pro or Percent X have ads?
Which is updated more often, HTML Viewer Pro or Percent X?
Other comparisons
