1. Provision of an online marketplace for buyers and sellers of goods and services 2. Providing a website featuring an online marketplace for exchanging goods and services with other users 3. Provision of an on-line marketplace for buyers and sellers of indicate specific type of goods or specific subject matter or field of services 4. Provision of an online marketplace for buyers and sellers of downloadable digital indicate type of downloadable digital goods, e.g., art images, music, video clips, etc. authenticated by non-fungible tokens (NFTs) 5. Operating on-line marketplaces featuring indicate field or type of goods 6. Operating on-line marketplaces for sellers and buyers of goods and/or services 7. Online retail store services in the field of downloadable mobile applications 8. Providing internet auction services via indicate the method by which the auction services are offered, e.g., mobile applications 9. Retail store services featuring indicate field of goods provided via indicate means, e.g., downloadable mobile applications, wireless communications, etc. 10. Business monitoring and consulting services, namely, tracking web sites and applications of others to provide strategy, insight, marketing, sales, operation, product design, particularly specializing in the use of analytic and statistic models for the understanding and predicting of consumers, businesses, and market trends and actions