Its 4b platform brings services together in a personal, login-based environment for sending and receiving files. share-4b lets users send data securely by creating links for recipients, while receive-4b enables senders to upload files for encrypted access by the intended recipient. Both services use end-to-end encryption: data is encrypted and decrypted in the browser, and the server does not know the contents or hold the decryption keys. Documents are stored in ISO 27001-certified data centers.

Beyond its platform, ca4b develops tailored software for specific business needs, drawing on a broad selection of technologies and tools. Its work includes full-stack development, containerization and serverless solutions. The company emphasizes usability, clear structures, security and reducing administrative effort. It also provides ongoing support after purchase, including software updates and help with using its solutions. The site additionally lists an Outlook add-in among its products.