The 39C3 Schedule app (Dec 27-30) for the CCC in Hamburg on your Android device
About 39C3 Schedule
39C3 Schedule is an events app developed by Tobias Preuss.
Download Statistics
39C3 Schedule has been downloaded 20 thousand times. In the last 30 days, the app was downloaded 13 times.
User Ratings
39C3 Schedule is rated 4.78 out of 5 stars. The rating is based on 670 ratings.
App Information
39C3 Schedule is FREE to download. The APK download size is 7.96 MB. The latest version available is 1.76.0. The last update was on May 8, 2026.
Technical Requirements
39C3 Schedule requires Android 5.0+ or higher. The app has a content rating of Medium Maturity. The app has been available on Google Play December 2017.
Description
Conference program for 39C3: Power Cycles
The 39th Chaos Communication Congress (39C3) takes place in Hamburg on 27–30 Dec 2025, and is the 2025 edition of the annual four-day conference on technology, society and utopia organized by the Chaos Computer Club (CCC) and volunteers.
Congress offers lectures and workshops and various events on a multitude of topics including (but not limited to) information technology and generally a critical-creative attitude towards technology and the discussion about the effects of technological advances on society.
Starting in 1984, Congress has been organized by the community and appreciates all kinds of participation. You are encouraged to contribute by volunteering, setting up and hosting hands-on and self-organized events with the other components of your assembly or presenting your own projects to fellow hackers.
https://events.ccc.de/congress/2025/
App features: ✓ View program by day and rooms (side by side) ✓ Custom grid layout for smartphones (try landscape mode) and tablets ✓ Read detailed descriptions (speaker names, start time, room name, links, ...) of sessions ✓ Search and filter through all sessions ✓ Add sessions to favorites list ✓ Export favorites list ✓ Setup alarms for individual sessions ✓ Add sessions to your personal calendar ✓ Share a website link to an session with others ✓ Keep track of program changes ✓ Automatic program updates (configurable in settings) ✓ Vote and leave comments on talks and workshops ✓ Automatically open sessions from web links ✓ Integration with the c3nav indoor navigation project https://c3nav.de ✓ Integration with the Engelsystem project https://engel.events.ccc.de - Online tool for coordinating helpers and shifts on large events ✓ Integration with the Chaosflix https://github.com/NiciDieNase/chaosflix - Android app for http://media.ccc.de, share Fahrplan favorites with Chaosflix to import them as bookmarks
🔤 Supported languages: (Session descriptions excluded) ✓ Danish ✓ Dutch ✓ English ✓ Finnish ✓ French ✓ German ✓ German, Austria ✓ Italian ✓ Japanese ✓ Lithuanian ✓ Polish ✓ Portuguese, Brazil ✓ Portuguese, Portugal ✓ Russian ✓ Spanish ✓ Swedish ✓ Turkish
🤝 You can help to translate the app at: https://crowdin.com/project/eventfahrplan
💡 Questions regarding the content can only be answered by the content team of the Chaos Communication Congress (CCC). This app simply offers a way to consume and personalize the conference schedule.
💣 Bug reports are very welcome. It would be awesome if you can describe how to reproduce the particular error. Please use the GitHub issue tracker https://github.com/EventFahrplan/EventFahrplan/issues.
🎨 39C3 Power Cycles. Design by Nina Bender and Bernd Volmer
Recent changes: v.1.76.0 ✓ New layout of details, favorites, schedule changes and alarms screens to use full screen height and to optimize for one-handed interaction with action items. ✓ Optimized for Android 16 (Baklava). ✓ Reduced download size.
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Super bien! Feels a bit slow / unresponsive / laggy on Huawei P10 with Android oreo
★★★★☆Simon Struck· Dec 28, 2018
A bit slow when returning from event description to the planner, otherwise amazing. I'd like to be able to only get schedule updates that actually affect me.
★★★★☆Zimt Gewürz· Dec 27, 2025
Thanks for this neat app, very helpful! Just 2 improvement suggestions: 1) could you maybe add a toggle to deactivate the popups that inform about the updates? 2) Same for the popup that suggests rotating the phone. If you could offer options to remove those dialogs and make it more distraction-free I think a lot of the neurodiverse audience would appreciate it. Thanks a lot and have an excellent congress!
★★★★☆aschmitz· Dec 28, 2018
Good, and fast updates are nice, but I would have liked the ability to search talks, or show more than one room at a time.
★★★★★Martin Wiegand· Apr 18, 2020
Very useful. Looking forward to future versions and congresses.
★★☆☆☆R. Rubesch· Dec 29, 2018
Very slow, especially when pressing back button in any situation
Google Play Rankings for 39C3 Schedule
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Technologies used by 39C3 Schedule
39C3 Schedule is requesting 8 permissions and is using 33 libraries.
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