Indie Biz Marketplace App Development

I'm seeking an experienced app developer to create a marketplace app similar to Vinted, but tailored for independent businesses selling their own products. Key Requirements: - Platforms: Both iOS and Android - Essential functionalities: - Product listing - Payment processing - User reviews - User authentication via email and password Ideal Skills and Experience: - Proven track record in developing marketplace apps - Expertise in payment processing integration - Strong UI/UX design skills - Familiarity with both iOS and Android development environments - Experience with secure email/password authentication systems Please provide examples of similar projects you've completed, along with your approach to ensure a smooth user experience and secure transactions. Budget: GBP 20–250