# HackUDC OS

> HackUDC OS (iPhone/iPad app by GPUL.)

- Source: https://appshunter.io/ios/app/hackudc-os/id6790912214 (this page in markdown: same URL + `.md`)
- Developer: [GPUL](https://appshunter.io/developer/1874751084)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 48 MB
- Languages: American English
- Released: 2026-09-08
- Data updated: 2026-10-03
- User reviews in markdown: https://appshunter.io/ios/app/hackudc-os/id6790912214/reviews.md

## What is HackUDC OS?

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


## Version history (last 2 releases)

### 1.0.1 — 2026-09-20

What’s New in 1.0.1

  - More reliable offline scanning and synchronization when connectivity returns.
  - Improved scanner performance and efficiency, especially when working with large attendee lists or queued scans.
  - Faster, smoother attendee, activity, and queue screens with fewer unnecessary updates.
  - Faster updates for notifications and activity reminders.
  - New queue guidance for participants, with an interactive tutorial explaining queue stages.
  - Fixed an issue where changing one notification preference could temporarily disable other preference switches.
  - Improved attendee search, including ID number lookup.
  - Event access and tickets now stay synchronized with current permissions.
  - General navigation, performance, and stability improvements.

### 1.0 — 2026-09-08

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-03.*