And when the next update arrives, be sure to check back here. By the end of it, you'll know every facet of the app. To make things easier for you and newbies, Pocket-lint has compiled this guide. Snap, the company behind Snapchat, is so aggressive with making changes to the app that it can be hard to keep up with how Snapchat really works, even if you're a regular user. Frequent updates mean the app looks and works nothing like it once did. (Pocket-lint) - Snapchat has changed a lot in recent years.