# Congress - 39C3 — Chaos Communication Congress

> Event guide for Chaos Communication Congress with schedule, streaming, and offline access. (iPhone/iPad app by Thomas Kollbach.)

- Source: https://appshunter.io/ios/app/congress-39c3/id941205524 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Kollbach](https://appshunter.io/developer/316549989)
- Category: Reference, Utilities
- Price: Free
- Rating: 4.80/5 from 26 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 38 MB
- Languages: American English, German (Germany)
- Released: 2014-12-17
- Data updated: 2026-07-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/congress-39c3/id941205524/reviews.md

## What is Congress?

Your guide to the 39th Chaos Communication Congress from 27th to 30th December in the Congress Center Hamburg. 

Features:

- In Englisch and German
- For iPad and iPhone 
- Calendar or list style overview of all sessions
- Filter sessions by language, room, track or skill level
- Offline data: Find what you are looking for even if the WiFi is down
- Watch live streams and video recordings right from inside the app
- Download videos for offline watching
- Favorites 
- Collaborate on lists of sessions
- Reminders: Never miss a session
- iCloud sync for favorites, list and reminders
- Search for sessions and speakers
- Get alerts when your favourite sessions get rescheduled or cancelled
- Keyboard support for iPad
- Support for Shortcuts
- Also check out the tvOS and macOS App


More info about the event at https://events.ccc.de/

## Key features

- Session schedule overview
- Filter by language, room, track, skill
- Offline data access
- Live stream and video playback
- Downloadable videos
- Session reminders and alerts
- Collaborative session lists

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/congress-39c3/id941205524/reviews.md

### 4/5 — SD only?!

*2019-12-27*

Is it only me or why is the video stream only available in SD? Like the App though.

## Frequently asked questions about Congress

### What is Congress - 39C3?

Congress - 39C3 is a mobile application designed to guide users through the 39th Chaos Communication Congress. It provides a comprehensive schedule, session details, and event navigation tools.

### Does Congress - 39C3 have ads?

No, Congress - 39C3 is ad-free, allowing for an uninterrupted user experience.

### What languages does Congress - 39C3 support?

Congress - 39C3 is available in both English and German, catering to a wider range of attendees.

### Can I use Congress - 39C3 offline?

Yes, Congress - 39C3 offers offline data access, meaning you can find session information even without a WiFi connection.

### How can I stay updated on session changes with Congress - 39C3?

Congress - 39C3 provides reminders for your favorite sessions and alerts you when they are rescheduled or canceled, ensuring you never miss important events.

### What devices are compatible with Congress - 39C3?

Congress - 39C3 is available for iPhone and iPad, and also has companion apps for macOS and tvOS.

### How often is Congress - 39C3 updated?

The latest version of Congress - 39C3 is 1.10.2, last updated on December 12, 2025, indicating regular maintenance and updates.

### What is the user rating for Congress - 39C3?

Congress - 39C3 has an excellent rating of 4.8 stars based on 26 user reviews, reflecting high user satisfaction.

## Version history (last 5 releases)

### 1.10.2 — 2025-12-12

Bugfixes

### 1.10.1 — 2025-12-06

- Bugfixes
- Improved icon

### 1.10 — 2025-12-03

- Schedule for 39C3
- Create lists to organize sessions and share them using iCloud
- Improved support for Shortcuts
- iOS 26 design update

### 1.9.5 — 2024-12-31

- Fixes push notifications
- Bugfixes

### 1.9.4 — 2024-12-24

- Added more Shortcuts
- Improved maps support
- Bugfixes

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## More apps by Thomas Kollbach

- [republica](https://appshunter.io/ios/app/republica/id869014061)
- [Chaos Communication Camp](https://appshunter.io/ios/app/chaos-communication-camp/id1024060377)
- [Bits & Bäume 2022](https://appshunter.io/ios/app/bits-and-baume-2022/id1441054315)
- [MCH2022](https://appshunter.io/ios/app/mch2022/id1632804011)

All apps by Thomas Kollbach: https://appshunter.io/developer/316549989

## Related topics

[ifscc congress](https://appshunter.io/ios/topics/ifscc-congress)

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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 2026-07-18.*