SkillArena is a daily brain-training app built for short breaks. Pick Quick (about 2 minutes), Standard (about 4) or Extended (about 8). Thirteen games cover focus, memory, reasoning, numbers, careful reading and clear wording, and every question is generated fresh. The timer pauses if you leave mid-round, missing a day loses nothing, and each category gets a 1 to 100 rating with the math shown. Offline, no account, no ads. Ratings describe game performance, not IQ.