The Truth App by Jack Heath (review)

On the same day that Jarli Durras' lie-detector app goes viral, a mysterious truck purposely drives into his family's car, putting his dad in the hospital. Now reporters are camped outside his house, Jarli's receiving death threats, a man with a gun is after him, and his mom is convinced that the app is to blame for it all. Jarli wonders if this is really about his app, or is it all part of something bigger and more dangerous? As one strange incident follows another, Jarli investigates with the help of a few trustworthy friends, both new and old. Originally published in Australia, this slim, action-packed novel delivers on its appeal-heavy premise, and the intriguing if implausible set-up serves as strong introduction to the techno-thriller genre. The text's brevity and focus on plot leave character depth wanting, but Jarli still charms as an authentically confused but ultimately brave teen hero. Meanwhile, occasional chapters from female friends' points of view ramp up the tension and set up future heroines who definitely deserve stories of their own. Tailormade for the reluctant reader, the book is a swift, intense page-turner complete with four internationally published sequels for readers keen to continue.