What's the best iOS app for challenging lateral thinking puzzles that don't require wifi?

Brain Out delivers exactly what puzzle enthusiasts seek when looking for offline mental challenges. The app presents deceptively simple riddles that often require thinking far outside conventional logic patterns. Players might need to shake their device, tap in specific sequences, or interpret questions literally rather than following assumed conventions. This approach to puzzle design creates genuine 'aha' moments when solutions reveal themselves. The complete offline functionality makes it particularly valuable for travel or commuting situations where internet access is limited or unavailable. Reviews indicate the hint system provides necessary guidance without completely giving away solutions, though some users note the frequency of ads between puzzles can interrupt the flow. The puzzles escalate in difficulty gradually, allowing players to build confidence before tackling more complex challenges. While the ad-supported model can feel intrusive during extended play sessions, the core puzzle mechanics remain engaging enough to keep players returning. The visual design maintains clarity despite the sometimes absurd solutions, and the soundtrack receives consistent praise for being pleasantly atmospheric without becoming repetitive.