Out of 11+ sos classic apps and games on iOS, 11 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
A classic puzzle game similar to tic-tac-toe, but with more strategic depth. Players take turns placing letters to form 'SOS' sequences, earning points for each completed sequence. Compete for high scores on an online leaderboard.
Engage in a classic brain teaser, also known as noughts and crosses or xo. This app offers a fun way to challenge your logic skills with various grid sizes and play modes, including single-player, multiplayer, and online challenges.