Replacing Your Default Android Dialer with the Bolt App

The Bolt app for Android aims to make it easier for users to call friends and family, even simpler than the default phone app. The company was founded after years of frustration with carrier lock-in and the limitations of existing products in delivering a seamless experience. Using Java, Postgres, Redis, and Twilio SMS, Bolt is building an "unbundled" experience that allows users to pay for data while using voice calls and messaging without relying on their carriers. The company plans to expand its services with an iOS app and messaging capabilities, aiming to push the mobile ecosystem towards a data-only future.