Three apps built by citizens at Jakarta’s annual hackathon will be released at the end of this year.

The winner of the hackathon is JakCare, an app that lets users find and help poor people who need more social support.

Second place is a gamification app, J-Explore, that teaches people about popular attractions in Jakarta. An alpha version of the app is already available online.

Third is Parkirmu, an app that lets drivers find and reserve empty parking lots in the city. Jakarta’s Smart City Unit plans to use this app for its smart parking tests in December. It is available for download on Android and iOS phones.

The three winners are working with East Ventures until December to prepare their apps for launch.

The Jakarta government hosted the hackathon, HackJak, in August to encourage citizens to experiment with government data available on the city’s new open data portal, data.jakarta.go.id.

The most popular datasets on the open data portal are public bus routes and stops, street names, names and number of universities, and locations of lakes and ponds, Harry Sanjaya, head of data in Jakarta’s ICT department, told GovInsider.