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"We, The Citizens of Code!"

March 28-29



Amulya Khare, Arvin Sabu Joseph, Mohit Kanwal, Rajul Gupta

Jarvis is a smart container to aid in the prompt and efficient supply of medicines for the elderly in Singapore. Jarvis comes with an app which has a feature to facilitate donations for various medical conditions.

The “smart” medicine jar, equipped with a weight sensor is able to detect the volume of pills contained within it. Once the volume of pills drops below a predefined threshold, the server intuitively notifies the Android app running on the caregiver’s phone, reminding him or her to purchase more medication. The app was also designed to provide users with the option of purchasing medication directly from nearby pharmacies, and have it delivered to their homes.

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2nd place


Hrishi Olickel, Parag Bhatnagar, Sean Saito

A wireless targeted marketing tool, based on iBeacon and PayPal incorporating Braintree, PayPal and Rainmaker Labs API. This geo location app delivers personalised advertisements to users walking in range of a bluetooth enabled beacon device. This app will allow businesses to develop advertising that will be specific to each customer.

3rd place

Feels Like Magic

Eugene Chen

It shouldn't be hard for people to associate their data with maps.

Employees of nonprofit organizations fear data. They fear visualizing data. Maps are out of the question. Students from elementary school to college face similar difficulties, and even analysts have to rely on coding to show their data. aims to change that through a straightforward experience that is intuitive for anyone who has some basic experience with Excel.

+ View the App

Singapore 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.