The mission of Random Hacks of Kindness Junior, Inc. (RHoKJr) is to empower students to use technology to positively impact the challenges facing local nonprofits in their communities. We do this by hosting one-day hackathons around the state where students (4th-8th grade) are paired with computer science mentors and nonprofit representatives to develop prototype smartphone apps for local charities. Using an MIT developed coding tool (http://appinventor.mit.edu/explore/), students will learn the basics of app design, as well as the ideation and brainstorming process required to build a successful prototype mobile application. This program requires NO prior coding knowledge and is intended as a code-to-learn tool!. All students regardless of their computing background are welcome. At RHoKJr events students participate in eight hours of highly engaged collaboration.