ROAK App vs Html Preview
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ROAK App
Read full descriptionHide full description
The ROAK app connects to all your Royal Eijkelkamp sensor to create an overview of your soil and water data. This app also allows you to download the data off your non-telemetric wells. You can then send this data to ROAK or sync it to your own data platform.
Html Preview
Quickly view any HTML file on your iPhone or iPad. Share files from any app or browse your device to instantly render web pages, AI reports, or email attachments. Enjoy a private, ad-free experience with a history of your viewed files.
- Share Extension for instant previews
- Zero-delay instant rendering
- History with source app tracking
- Support for multiple encodings
- Dark Mode support
- File picker for local browsing
- Privacy-focused, no ads or analytics
Read full descriptionHide full description
Open any HTML file on your iPhone in seconds. Html Preview is the simplest way to view HTML files shared from any app. Whether it's a report from ChatGPT, a page saved from Safari, or an attachment from WeChat — just tap Share and preview it instantly. KEY FEATURES • Share Extension — Open HTML files directly from any app using the iOS Share Sheet • Instant Rendering — Pre-warmed WebView engine loads content with zero delay • History — Recent files with source app tracking (knows if it came from WeChat, ChatGPT, Mail, etc.) • Multiple Encodings — Supports UTF-8, Windows-1252, and ISO Latin-1 • Dark Mode — Beautiful warm UI that adapts to your system appearance • File Picker — Browse and open HTML files from the Files app • Privacy First — No ads, no analytics, no data collection. Everything stays on your device. PERFECT FOR • Viewing HTML reports generated by AI assistants (ChatGPT, Claude, Gemini) • Previewing web pages shared via messaging apps (WeChat, Telegram, WhatsApp) • Opening HTML email attachments • Checking HTML files from cloud storage (iCloud, Google Drive, Dropbox) • Developers previewing HTML mockups on mobile Html Preview supports .html, .htm, and .xhtml files.
Screenshots
Verdict
The clearest difference is price: ROAK App at Free against Html Preview's $2.99. ROAK App also leads on iOS requirement (14.0 vs 17.0). Html Preview's advantage is update cadence (every 6 days vs monthly). On ads, in-app purchases 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
ROAK App is free to download; Html Preview costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ROAK App ships an update monthly, Html Preview every 6 days. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.
| Parameter | ROAK App | Html Preview |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 4.7 (11 ratings) — better |
| Positive reviews | — | 87.5% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 45 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Royal Eijkelkamp | CyberGame Limited |
In-app purchases
ROAK App
No in-app purchases
Html Preview
No in-app purchases
