The nation's chillest college hackathon. January 16-18, 2015 at the University of Pennsylvania.

PennApps Winter 2015 is scheduled for January 16-18, 2015 at the University of Pennsylvania. The eleventh iteration of the nation's first college hackathon is upping the hackathon to new extremes, with the world's top and most promising hackers coming together to tackle real world problems using the latest in hardware and software. Teams start working on their hacks (at 8 PM) after the Friday evening kickoff and continue working till Sunday morning (9:30 AM). All submissions MUST be made here on ChallengePost. Videos are optional.

View full rules


If you applied to PennApps Winter 2015, recieved an offer to attend and went on to confirm that you will do so, you are eligible to attend PennApps. If you attended and hacked at PennApps, then you are eligible to make a submission. 


Make your product, submit your hack to ChallengePost and attend the PennApps expo to show off what you built. You must demo at the expo and submit on ChallengePost in order to be eligible for prizes.

How to enter

Only current students in University or High School who have been accepted to PennApps Winter 2015 can make submissions. Only Penn students can still register at


A Panel of Awesome Judges

A Panel of Awesome Judges

Judging Criteria

  • Originality
    Is the hack more than just another generic social/mobile/local app? Does it do something entirely novel, or at least take a fresh approach to an old problem?
  • Technical Difficulty
    Is the hack technically interesting or difficult? Is it just some lipstick on an API, or were there real technical challenges to surmount?
  • Polish
    Is the hack usable in its current state? Is the user experience smooth? Does everything appear to work? Is it well designed?
  • Usefulness
    Is the hack practical? Is it something people would actually use? Does it fulfill a real need people have?