Comparison

GLview Mobile 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

GLview Mobile

This utility app provides detailed information about your device's graphics hardware, including OpenGL ES and Apple Metal capabilities. It offers access to extension documentation, shader information, and includes benchmark tests for various OpenGL ES versions. Useful for developers and those interested in comparing device performance.

Highlights
  • GPU hardware information reporting
  • OpenGL ES and Apple Metal capabilities
  • Access to extension documentation
  • Shader capabilities display
  • OpenGL ES benchmark tests
  • Cloud storage for OpenGL information
Read full description

OpenGL Extensions Viewer for iOS displays the vendor name, the version, the renderer name and the extensions for OpenGL ES 1.1, 2.0 and 3.0 and Apple Metal. 
From the makers of the famous OpenGL Extensions Viewer on PC and Mac, the iPhone version can access each extension documentation, shader capabilities and also features a benchmark for OpenGL ES 1.1 to ES 3.0. 
Ideal if you are developing application for iPhone, or want to compare between every iPod and iPod model. CPU information, iOS revision are also reported. Main key features:

• Reports iPhone/iPod hardware information (CPU frequency, Bus frequency, Operating System, Device Name, CPU model). 
• Reports OpenGL ES information and gives access to OpenGL Extension specification online (requires internet connection). 
• Reports Metal iOS 7 API feature level..
 • Allow to test graphical rendering tests for OpenGL ES 1.1, 3.0, and supports features like Multisample anti-aliasing. 
• Submit your OpenGL information into to the Cloud storage and check the results on the Mac and PC version.

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

GLview Mobile4 screens
HTML Viewer Pro4 screens

Verdict

The call

The clearest difference is rating: GLview Mobile at 4.7 against HTML Viewer Pro's 3.9. GLview Mobile also leads on in-app purchases (none vs 2) and review sentiment (70% vs 49%). HTML Viewer Pro's advantage is ratings volume (45 vs 7). On price, ads, 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. HTML Viewer Pro sells 2 in-app purchases, starting at $1.99 per month. GLview Mobile asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GLview Mobile holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: HTML Viewer Pro has 45 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 70% of GLview Mobile's written reviews are positive against 49% of HTML Viewer Pro's.

UpkeepUpdate frequency

GLview Mobile ships an update every 4 months, HTML Viewer Pro every 15 months. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
GLview Mobile versus HTML Viewer Pro: the parameters behind the verdict, then further details
ParameterGLview MobileHTML Viewer Pro
PriceFreeFree
Rating4.7 (7 ratings) — better3.9 (45 ratings)
Positive reviews70.0% of reviews — better49.1% of reviews
Number of ratings745 — better
Update frequencyEvery 4 months — betterEvery 15 months
AdsYesYes
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size73 MB33 MB
Age rating4+17+
DeveloperStephane DenisHayato Shimizu

Customer experience

GLview Mobile

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews40 reviews
Positive70.0%
Neutral5.0%
Negative25.0%

HTML Viewer Pro

All ratings45 ratings
Positive68.9%
Neutral8.9%
Negative22.2%
Written reviews53 reviews
Positive49.1%
Neutral13.2%
Negative37.7%

In-app purchases

None

GLview Mobile

No in-app purchases

2 purchases

HTML Viewer Pro

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

Questions

Is GLview Mobile free?
GLview Mobile is free to download, with no in-app purchases.
Is HTML Viewer Pro free?
HTML Viewer Pro is free to download, with in-app purchases available.
Which has better reviews, GLview Mobile or HTML Viewer Pro?
GLview Mobile is rated higher. GLview Mobile averages 4.7 out of 5 from 7 ratings, while HTML Viewer Pro averages 3.9 from 45 ratings.
Do GLview Mobile or HTML Viewer Pro have ads?
Both GLview Mobile and HTML Viewer Pro show ads.
Which is updated more often, GLview Mobile or HTML Viewer Pro?
GLview Mobile ships an update every 4 months, and HTML Viewer Pro every 15 months. Most recently, GLview Mobile was updated on October 2, 2026 and HTML Viewer Pro on October 10, 2026.

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