A couple of differences might be:

1. Shows dependencies relationships

2. Automatic updates without the need to request access to the whole project (via git post-commit hook)

3. Analysis of most used dependencies on all your projects

4. Daily emails divided per project instead of dependency / gem

5. Cheaper and with 1 free private project

This is a new project so all feedback is more than welcome. I'm looking to develop everything that makes the platform better and helps every developer and tech team.