HackUDC OS vs Web Modifier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HackUDC OS
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hackOS is the official app for the HackUDC hackathon. It serves both participants and event staff through a single adaptive interface. For Participants: - View the event schedule with day-by-day timeline, and configure per-session reminders - Track your team's judging queue position, ETA, and room assignment in real time - Access your entrance ticket and badge QR codes, and add them to Apple Wallet - Receive push notifications for queue calls, schedule changes, and announcements - Manage your account and notification preferences For Staff/Operators: - Scan QR codes for event accreditation (check-in), badge assignment, and badge replacement - Track attendee presence with door in/out scanning - Scan meals and recordable activities with first-serving/repeat detection - Manage judging queues: call teams, and review and configure presentation teams - View a searchable roster of all attendees with real-time status
Web Modifier
This browser allows you to locally edit and customize visible webpage text. Preview your changes instantly and save modifications to be reapplied automatically on future visits. It's designed for lawful preview and testing of content you own or are authorized to modify.
- Local webpage text editing
- Save and manage modifications
- Automatic modification reapplication
- Custom webpage location testing
- Webpage screenshot capture
- Desktop version requests
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Web Modifier is a lightweight browser that lets you preview and customize visible webpage text locally on your device. Open a webpage, enter Edit Mode, select visible text, and preview your changes instantly. Saved modifications can be automatically reapplied on future visits. Changes affect only the webpage displayed inside the app—they do not alter the original website or any data stored on its servers. KEY FEATURES • Browse and search with back, forward, reload, and full-screen controls • Edit visible webpage text locally (Pro) • Save, enable, disable, and manage webpage modifications (Pro) • Automatically apply saved changes on future visits (Pro) • Choose a custom webpage location when testing location-aware pages (Pro) • Capture and share webpage screenshots • Share webpage links • Request desktop versions of websites PRO ACCESS Pro unlocks: • Local webpage text editing • Saving, managing, and automatically applying webpage modifications • Custom webpage location for testing location-aware pages A free trial provides temporary access to Pro features. After the trial, Pro can be unlocked with a one-time, non-consumable in-app purchase. This is not a subscription. Previous purchases can be restored through the App Store. ACCEPTABLE USE Web Modifier is intended for lawful preview and testing. Use it only with webpages and content you own or are authorized to test. Do not use it to bypass security controls, gain unauthorized access, commit fraud, or violate applicable laws or third-party rights.
Screenshots
Verdict
The clearest difference is in-app purchases: HackUDC OS at none against Web Modifier's 1. Web Modifier's advantage is update cadence (daily vs fortnightly). On price, ads, 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
Both are free to download. Web Modifier sells 1 one-off in-app purchase. HackUDC OS asks for nothing beyond the download.
HackUDC OS ships an update fortnightly, Web Modifier daily. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.
| Parameter | HackUDC OS | Web Modifier |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.6 — better |
| Further details — not scored | ||
| Size | 49 MB | 3 MB |
| Age rating | 4+ | 17+ |
| Developer | GPUL | 奎奎 陈 |
In-app purchases
HackUDC OS
No in-app purchases
Web Modifier
- Web Modifier Pro$9.99
Questions
Is HackUDC OS free?
Is Web Modifier free?
Do HackUDC OS or Web Modifier have ads?
Which is updated more often, HackUDC OS or Web Modifier?
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