What's the best Android app for stealth-based puzzle games where you sneak and eliminate targets?

Hunter Assassin is a mobile game that centers on stealth and puzzle-solving, where players control an assassin navigating through guarded environments to take out enemies without detection. The gameplay emphasizes observation and timing, as users must study enemy patrol patterns and plan routes to avoid alerting guards. Key features include a tap-based movement system for easy navigation, over 100 levels with escalating difficulty that introduce new obstacles and enemy types, and an upgrade path to enhance the assassin's speed or abilities. This makes it ideal for short, engaging sessions, such as during commutes or breaks, where the strategic elements provide a mental challenge without requiring long time commitments. However, some reviews note that later stages can feel repetitive due to similar mechanics, and the ad-supported model might disrupt immersion for some players. Despite these minor issues, the app's clean visuals and satisfying progression keep users coming back, with many praising its balance of simplicity and depth for stealth enthusiasts.