EXP (Experience Points) goes towards earning coins, gaining boosts, and unlocking the next region of the mission.

Each letter tile is worth 1 EXP, so the more words and tiles in a puzzle, the more EXP you will gain.

You can also earn additional EXP by adding bonus words. Each bonus word is worth 1 EXP and you can earn a maximum of 5 EXP in every puzzle.

Keep in mind, some puzzles may have no bonus words and some puzzles may have more than 5 bonus words.