IDFA Checker byNSDev vs HTML Opener
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IDFA Checker byNSDev
Easily view and copy your device's Identifier for Advertisers (IDFA). This tool is useful for developers registering test devices for advertising platforms like AdMob.
- View IDFA
- Copy IDFA to clipboard
- Share IDFA
- Test device registration aid
- AdMob integration support
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You can view the IDFA and copy it to your clipboard or forward it using the share feature. You can check and obtain the IDFA, advertising ID, when registering a test device for AdMob, etc.
HTML Opener
This app renders local HTML, CSS, and JavaScript files in a real browser on your iPhone and iPad. It allows you to test web prototypes and view interactive pages without needing a computer or local server. Easily open entire project folders and toggle between desktop and mobile views.
- Renders local HTML, CSS, JavaScript
- Opens entire project folders
- Desktop and mobile view toggle
- Fullscreen mode for web apps
- Quick switcher for recent projects
- Auto-launch primary tool
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When you open an HTML file in the iPhone Files app, iOS just dumps lines of raw code on your screen. Buttons do not work, styles break, and Safari cannot open local file links. HTML Opener fixes that. It runs your local HTML, CSS, JavaScript, and images in a real WebKit browser directly on your iPhone and iPad. No Mac, no terminal, and no local server required. WHAT IT SOLVES - Files app dumps raw code and text on screen instead of rendering the webpage - Safari has no address bar option to open local file:// links - Opening a single file breaks CSS styles and image assets in neighboring folders - Setting up a local server on your computer just to check mobile layout is tedious REAL WEBKIT BROWSER RENDERING Built on iOS's native WKWebView engine. Buttons, forms, CSS styling, canvas animations, and modern JavaScript run exactly as they would in Safari. OPEN AN ENTIRE PROJECT FOLDER Select a folder containing style.css, script.js, and an images directory alongside your HTML file. All relative file paths resolve automatically with zero broken images or missing styles. DESKTOP & MOBILE VIEW TOGGLE Switch between phone layout and 1024px desktop view with a single tap. Review horizontal dashboards, data tables, and desktop web tools without broken layouts. FULLSCREEN MODE Hide navigation bars and margins to give your web content the entire display. Web apps and tools feel like installed native apps. FOUR SIMPLE ACTIONS 1. Open a local file or folder 2. Quick Switcher to jump between recent projects 3. Auto-launch your primary tool as soon as the app starts 4. Clear cache, toggle dark theme, and customize display options WHO IT IS FOR - Anyone stuck when iPhone opens HTML as raw code - Developers and designers testing web prototypes on actual iOS hardware - Anyone running self-built dashboards, calculators, or tools on the go - Students learning web development who want instant mobile testing PRO (ONE-TIME PURCHASE, NEVER A SUBSCRIPTION) Removes ads completely. Pay once, use forever. Compatible with iPhone and iPad, iOS 17.0 or later. Stop dealing with raw code dumps. Open real interactive web pages with HTML Opener.
Screenshots
Verdict
The clearest difference is in-app purchases: IDFA Checker byNSDev at none against HTML Opener's 1. IDFA Checker byNSDev also leads on iOS requirement (15.6 vs 17.0). On price, ads 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 Opener sells 1 one-off in-app purchase. IDFA Checker byNSDev asks for nothing beyond the download.
| Parameter | IDFA Checker byNSDev | HTML Opener |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 4 days |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | NIHON SYSTEM DEVELOPER CORPORATION | GASHIMA LAB |
Customer experience
IDFA Checker byNSDev
HTML Opener
In-app purchases
IDFA Checker byNSDev
No in-app purchases
HTML Opener
- HTML Opener PRO$4.99
Questions
Is IDFA Checker byNSDev free?
Is HTML Opener free?
Do IDFA Checker byNSDev or HTML Opener have ads?
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