Bump has announced today marks the four year anniversary since its release in the App Store. Since then, the company has announced it has had 125 millions iOS downloads (they hit 100 million in December of 2012), 1 billion photos sent and now sits at 25 employees. Below is a graphic showing the evolution of Bump over the past four years:

The app makes it extremely easy to send pictures to your Mac/PC in a matter of seconds. Earlier this year it was updated to support to share Dropbox files. The most recent update in February added a feature to bump files from your Mac/PC to your iOS device, essentially adding USB thumb drive functionality.

Click here to download Bump from the App Store–it’s free.