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"Enter the Grid, Code to the Finish!"

September 12-13



Andrzej Filipowicz, Kamil Lelonek, Mateusz Maciaszek, Michał Załęcki

An assistant for sightless people helping them in everyday's life.

It increases overall safety and enables fast and easy communication and location awareness.

From assistance with dressing up to notifying and requesting for a support anywhere in a city.

+ View the App
Bh stockholm winner 2015

2nd place


Alejandro Vidal Rodriuez, Gustavo Giudici

Haven is a platform and a physical totem located through Europe for asylum seekers and other persons in precarious situations to alleviate their financial needs thanks to people donations, via printing a single-use QR codes redeemable per money in ATMs.

3rd place


Curt Harding, Jake Price, Jon Hazan, Mike Elsmore

On average 1 in 6 people suffer the effects of depression. And its not something that can be cured or vaccinated against.

For those that suffer its a matter of when not if, so we will provide them the tools to recognise the signs and manage themselves to alleviate the symptoms.

To do this we will analyse a users mental state using integrations with social media, email, sms, purchase history and music streaming.

Stockholm Judges_



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November 14-15

PayPal Town Hall
2161 N. First Street
San Jose, CA 95131

A true global competition where the City Champions face off, compete, conquer and claim $100,000 USD and the title of The Ultimate Hackers For Good.

Can't make it?
Join the livestream!


  • How do I register?

    Select your city of choice from the list. Registration is open 24/7. May the best hack team win!

  • Can I bring a team?

    Yes, you can bring your friends or team up with other hackers on site. You can hack solo, or in a team of a maximum of 4 members. No matter what you choose, be ready to battle!

  • What kind of code can I write?

    All breeds of code welcome.

  • Do I need to integrate PayPal, Braintree or Venmo into my hack?

    Yes, PayPal, Braintree or Venmo must be the sole payment method included in your hack in order to be eligible for the BattleHack competition.

  • How to win $100,000 USD

    Win a City BattleHack. Get flown, fed and cared for at our World Finals. Beat all other City Champions with code that impresses everyone on the planet. Be crowned the Ultimate Hackers For Good.

  • How is the hack structured?

    BattleHacks are full of 24+ hours of awesome stuff. In general, on Day 1 registration opens, you arrive, scope and share skills, create teams, meet judges, and then our gong hits and hacking begins. Add gourmet food, food and more food. Hack through the night, or grab a nap, beer break, and maybe even a massage or two. On Day 2, we have rehearsals, more food, and hack till you hear our gong, signaling the end of hacking! Teams present their apps, judging occurs and prizes are awarded.
    Check your BattleHack City’s registration page for specific timeline details.

  • What can we win?

    Glory! Fame! And oh yeah, you get some other good stuff! First place winners get our epic axe, flight and hotel accommodations to the World Finals in Silicon Valley, and a chance to $100K USD, no strings attached. Fear not, there's a slew of other goodies, and of course local partner prizes, and all our BattleHack swag!

  • Do you own my hack?

    No, this puppy is yours, born and bred from BattleHack love. BattleHack is for you to have some fun, do some good -- and have a chance to win $100K USD.

  • Should I bring my pyjamas?

    Expect to stay overnight, so bring whatever you need to get you through a 24-hour hackfest. We’ll provide some sleep spaces for those who need to crash or when energy drinks start to ebb. Remember you are in a public forum, so do cover up.