HTML Viewer Pro vs USS Mobile
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
USS Mobile
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TrustLayer USS Mobile brings enterprise-grade web security and cloud application control to mobile devices, extending your existing TrustLayer deployment to protect users wherever they work. This app integrates with the CloudUSS service to enable secure, policy-driven mobile access to the internet and SaaS applications without compromising user experience. Key Capabilities: Secure Web Access: Protect users from malicious, risky, or non-compliant websites in real time. Cloud Application Control (CASB): Enforce granular action-level policies across thousands of sanctioned and unsanctioned SaaS applications. Private Relay Architecture: Routes traffic securely through TrustLayer enforcement points, ensuring protection is always close to the user. Consistent Policy Enforcement: Apply the same security policies used across your organisation to mobile devices. Zero-Touch Operation: Runs seamlessly in the background with minimal user interaction. Optimised for Mobile: Low latency and efficient performance. How It Works: Once authenticated via SSO, the app securely associates the device with your TrustLayer tenant and establishes a protected connection via a private relay. All http/https web traffic is inspected and enforced according to your organisation’s security policies. Important: Requires an active TrustLayer subscription and tenant. Users must be provisioned by their organisation prior to use. The app installs a configuration profile containing a certificate in order to trust the TrustLayer private relay. TrustLayer Mobile Gateway ensures your users remain protected, compliant, and productive, no matter where they connect from.
Screenshots
Verdict
The clearest difference is in-app purchases: USS Mobile at none against HTML Viewer Pro's 2. USS Mobile also leads on ads (none vs shown) and update cadence (every 2 months vs every 15 months). HTML Viewer Pro's advantage is iOS requirement (12.0 vs 17.0). On price 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
Both are free to download. HTML Viewer Pro sells 2 in-app purchases, starting at $1.99 per month. USS Mobile asks for nothing beyond the download.
HTML Viewer Pro ships an update every 15 months, USS Mobile every 2 months. The most recent releases landed on October 10, 2026 and October 2, 2026 respectively.
| Parameter | HTML Viewer Pro | USS Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (45 ratings) — better | — |
| Positive reviews | 49.1% of reviews | — |
| Number of ratings | 45 — better | — |
| Update frequency | Every 15 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 33 MB | 4 MB |
| Age rating | 17+ | 4+ |
| Developer | Hayato Shimizu | TrustLayer |
In-app purchases
HTML Viewer Pro
- Premium (Monthly plan)$1.991 Month
- Premium (Buying out)$19.99
USS Mobile
No in-app purchases
Questions
Is HTML Viewer Pro free?
Is USS Mobile free?
Do HTML Viewer Pro or USS Mobile have ads?
Which is updated more often, HTML Viewer Pro or USS Mobile?
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