ArrowCluster

ArrowCluster keeps an archery practice round on one target. Tap where each arrow landed, and the app turns that mark into a score, an end total, and a session total. The face is a full ten-ring target. Rings 10 and 9 are yellow, 8 and 7 red, 6 and 5 blue, 4 and 3 black, and 2 and 1 white. A mark on a ring boundary takes the higher score. An inner ten can be counted as an X without adding an extra point. A miss is stored as zero and stays out of the group. You can zoom, pan, move a marker, or type a different score when the shaft touches a line. The saved position stays in target coordinates. When an end is finished, ArrowCluster shows the end score, average, hits, group diameter, mean radial deviation, and how far the cluster sits from center. Direction is read from the group center: high, low, left, right, or a corner. Later sessions at the same distance and face can be compared with…