Challer - Challenge the World is an iPhone lifestyle app developed by PUZZLES CORP. The app provides a platform for users to connect globally and engage in interactive challenges. Users can create profiles, produce challenge videos, and participate in challenges from around the world. The app encourages creativity and active participation by allowing users to share, interact, and vote on challenges, helping friends climb the leaderboard rankings.

Challer enables users to connect with a global community through direct messaging and friendly challenges. By winning challenges and accumulating points, users can enhance their rankings and demonstrate their skills. With Challer, users can showcase their creativity and talents in a fun and engaging way.