Allie Navarro can't wait to show her best friends the app she built at CodeGirls summer camp. CLICK'D pairs users based on common interests and sends them on a fun (and occasionally rule-breaking) scavenger hunt to find each other. And it's a hit. By the second day of school, everyone is talking about CLICK'D. Watching her app go viral is amazing. Leaderboards are filling up! Everyone's making new friends. And with all the data Allie is collecting, she has an even better shot at beating her archenemy, Nathan, at the upcoming youth coding competition. But when Allie discovers a glitch that threatens to expose everyone's secrets, she has to figure out how to make things right, even if that means sharing the computer lab with Nathan. Can Allie fix her app, stop it from doing any more damage, and win back the friends it hurt-all before she steps on stage to present CLICK'D to the judges?

After her Click’d catastrophe, Allie Navarro is determined to redeem herself. So when the class gets an assignment to create a mobile game from recycled code, Allie pairs up with Courtney, her best friend from CodeGirls camp, to create the perfect app: Swap’d. Kids buy, sell, and trade stuff at school all the time. Candy. Clothes. Video games. Slime. Why not make a fiercely competitive, totally anonymous, beat-the-clock game out of it? Once Swap’d is in full-swing, Allie is certain that it’s the answer to all her problems. She’s making quick cash to help Courtney buy that really expensive plane ticket to come visit her. It’s giving her an excuse to have an actual conversation with her super-secret crush. And it looks like she might finally beat her archenemy-turned-friend, Nathan. She’s thought of everything. Or… has she?