"Appristine Technologies is your go-to choice for developing a customized fitness app in the post-COVID-19 era. With a range of services including user research, UI/UX design, backend and frontend development, data security, and marketing, we offer flexibility to tailor your fitness app according to your specific needs. Our fitness app focuses on personalization, offering a variety of workouts, video tutorials, progress tracking, community features, motivation, and integration with wearable devices. As for the cost, our pricing models range from $5,000 to $15,000, depending on your desired features and customization level. Elevate your fitness app game with Appristine Technologies and empower your users to achieve their fitness goals."