Character left b
Character right b



"O Coding, We Stand on Guard for Thee!"

July 18-19


Not Me

Alex Christodoulou, Christopher Larsen, Ernst Riemer, Maya Kenedy

Not Me is an app that puts you in control of your online identity. Thousands of accounts get compromised every day, without their owners knowing. The service knows that if someone is logging in from another country, or while I'm asleep or out for a run, that's not me. Even if your passwords get compromised, NotMe protects you by blocking access and lets you know that someone tried to hack you. Through Braintree, Not Me allows users to pay for the protection service with PayPal or a credit card of their choice.

Img 9498

2nd place

While I Brush

Adam Chan, Aldrich Wingsiong, Michal Wiszniewski, Nikita Tsytsarkin

While I Brush is a device/service that improves the toothbrushing experience by entertaining people while they brush, by playing videos for the the recommended amount of time to brush their teeth. The team created an IoT solution combining Arduino with a Windows tablet plus IR sensors to check when a tooth brush is placed or removed from its container. A premium subscription of $2.99/year, that would be paid via Braintree, builds an extended experience for the user.

3rd place


Chris Cates, Jill Cates, Max Hartshorn

Doctors frequently make patient care decisions based upon incomplete, fragmented or out-of-date patient health information (e.g. "Kevin’s Mom is currently a patient in Mt. Sinai and her managing physician has requested that his family email him her most recent information, because that’s literally the best way for him to get access to it"). OpenMD targets this problem with an open digital health data platform that collects patient information from a broad range of diagnostic sources, and securely shares it within the patient’s “circle of care” - his or her family, as well as his/her treating healthcare professionals. As a patient you can get more personalized care, and as a doctor you can make the best possible patient decisions, if you both have access to the most up-to-date patient health information.

+ View the App

Toronto Judges_



  • Bt logo
  • Paypallogo
  • Logo full color flat
  • Blacklogo lrg
  • Logo black %283%29
  • Black outline horizontal
  • Nexus globalnet large transparent logo

Finals lockup glowing

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.