Pulp is described as 'platform for managing repositories of software packages and making it available to a large numbers of consumers'. There are four alternatives to Pulp for Linux, Online / Web-based, Windows and Java Mobile. The best alternative is aptly, which is both free and Open Source. Other great apps like Pulp are Artifactory (Freemium), Cloudsmith (Freemium) and mrepo (Free, Open Source).
aptly is a Swiss army knife for Debian repository management: it allows you to mirror remote repositories, manage local package repositories, take snapshots, pull new versions of packages along with dependencies, publish as Debian repository.
The world’s most advanced repository manager. Artifactory offers powerful enterprise features and fine-grained permission control behind a sleek and easy-to-use UI. Artifactory acts as a proxy between your build tool (Maven, Ant, Ivy, Gradle etc.) and the outside world.