Flash Tag AR is a multiplayer augmented reality (AR) game for iPhone that combines the excitement of laser tag with the convenience of using your phone. Developed by Paul Doersch, this free app allows you to shoot at your friends' phones in the real world using your flash. With no additional hardware required, you can immerse yourself in thrilling battles and earn new guns and characters as you progress.

One of the standout features of Flash Tag AR is its compatibility with a wide range of iPhone models, including iPhone 5S and newer. This ensures that players can join the fun regardless of their device. The game offers two modes: Free For All and Team Deathmatch, allowing up to 10 players to engage in intense battles.

In terms of compatibility and considerations, it's important to note that playing Flash Tag AR may consume more battery than other apps due to its AR nature. Additionally, as with any app featuring flashing lights, there is a risk of triggering seizures, so players are advised to proceed with caution.

Overall, Flash Tag AR offers an innovative and accessible way to enjoy multiplayer AR gaming on your iPhone. With its simple gameplay mechanics and the ability to engage with friends in the real world, this free app is sure to provide hours of entertainment.