15 Best Science Apps for Kids (2025 Update) These apps encourage curiosity, exploration, and conceptual understanding in science across grades K–12. All links verified October 2025. Everything Machine (Tinybop) Ages: 7+ Price: Paid Description: Visual, drag-and-drop “machines” built from device sensors (camera, mic, light, gyroscope, etc.). Great for cause-and-effect, logic, and prototyping. Star Walk…