Its catalog includes popular mobile games as well as practical tools for tasks like document management, photo and video editing, and system maintenance. Users can browse organized listings with app descriptions and system requirements, search for software, and access download and installation guidance.

The platform says it regularly updates its catalog and checks APK files for viruses and malware, including verification of developers’ digital signatures. It promotes fast downloads, a straightforward interface, recommendations based on popular categories, and free access to its offerings. Users can create accounts to manage profiles, review download history, and save favorite applications. v21 also describes mobile access and alternative domains for users who have trouble reaching its main site, along with customer support through chat, email, and a contact form. Its stated Android requirements begin at version 5.0.