Is there a good iOS app for a fast-paced, free online shooter that's easy to pick up?

Polygun Arena is a free-to-play online shooter for iOS that delivers accessible, fast-paced combat in a simplified polygonal environment. It excels as a casual gaming option for users seeking quick matches during commutes or breaks, thanks to its straightforward controls and instant online multiplayer access. The app features various maps and weapons, allowing players to engage in dynamic battles without complex mechanics. User reviews indicate that many enjoy the 'call of duty vibes' and find it entertaining for passing time, though some note it isn't suited for serious practice games like CS:GO. Strengths include its no-cost entry, regular updates from developer SIRIUS GAMES, and a rating of 4.9/5 based on positive feedback. However, limitations exist: progression can feel slow for non-paying users, with comments about it taking 'a while to level up' without purchases. Additionally, some players suggest improvements like adding ammo boxes to maps for better resource management. For real-world scenarios, such as a traveler looking to kill 10 minutes between flights or a student on a break, Polygun Arena provides engaging shooter action without demanding long-term commitment. Its balance of fun and simplicity makes it a solid choice, though those seeking deep competitive play might find the monetization model a hurdle.