Paid app ($2.99) — only Google Play can deliver it
Each new tile appears at a different angle
Square Liner - Reaction Game — description
Welcome to a fast-paced arcade game where precision and timing are key. Your task is to hold your finger on the screen to create a line of the right length and accurately trace a square tile. If the line is too short or too long, your attempt will fail.
Each new tile appears at a different angle, so you'll need to quickly judge the distance and act with precision. The better your reactions and sense of distance, the higher your score.