VoltBuilder is a cloud-based service that simplifies the process of building mobile apps using Apache Cordova. Accessible via its website at https://www.volt.build, VoltBuilder allows developers to compile their Cordova apps without the need for a local setup. Users can upload their project files, configure their app settings, and receive ready-to-install apps for both iOS and Android platforms. This service streamlines app development by handling complex build processes in the cloud, enabling faster iterations and deployments. VoltBuilder is particularly useful for developers looking to expedite their app development workflow while avoiding the complexities of in-depth native builds.