Kaflon

Had a look at Kaflon with keyboard nav and contrast in mind, given it's a single HTML file that's easy to check properly. Big tap targets are a good sign for motor accessibility, but I couldn't tell if focus states are visible when tabbing through, which matters for kids who can't use a mouse. Hebrew and English support with no accounts is refreshing. Would want to confirm colour contrast on the number buttons before recommending it for classroom use.