WiFi Hotspot Software to monetize my WiFi. I am an ISP

We are looking to offer public Wi-Fi access to the public in exchange for watching ads or paying for premium access. We are looking for a skilled developer who can help us build a custom app to facilitate this service. The app should be user-friendly and allow customers to easily access the Wi-Fi network by watching ads or purchasing premium access. It should also have the following features: Ad integration: The app should allow customers to watch ads in exchange for a set amount of Wi-Fi access time. The ads should be relevant to the customer's interests and should be non-intrusive. Payment integration: The app should allow customers to purchase premium Wi-Fi access using a payment gateway. We will handle the payment processing, but the app should integrate with our payment system. User authentication: The app should allow customers to authenticate themselves using their email address, phone number or social media accounts. Session management: The app should track user sessions and automatically log users out after a set period of time or when they leave the Wi-Fi coverage area. Usage analytics: The app should track usage analytics, such as the number of users, duration of sessions, and ad engagement rates. We will use this data to optimize the service and improve our ad targeting. We are open to using an existing app or building a custom app from scratch. If you know of an existing app that meets our requirements, please let us know. Please provide a proposal outlining your experience and approach to building the app, along with an estimated timeline and budget for the project. We are looking for a reliable and experienced developer who can help us bring this service to market quickly and efficiently.