The Gray Bear developed 'Challvia', a platform that aims to reward users based on their knowledge. Challvia is a challenging and fun-to-play trivia game through which users can earn money. The platform is available in the form of a website and a mobile app and combines the elements of top-notch visuals with functionality and high performance. Moreover, the platform also facilitates paid brand promotion through advertisements, which is an excellent digital marketing tactic. The ads are personalized upon the user's activity, making them relevant and ensuring they yield maximum benefits. The automated fund transfer function enables seamless transactions and helps in easy money rotation while generating revenue for the platform owner. This makes Challvia a highly reliable and efficient platform for gaming, marketing, and business growth.