Sideload or Wait Sideloading is a great way to add apps and games to your Kindle Fire that are otherwise unavailable.
A lot of users sideload so they can play games such as Clash of Clans or use Instagram on this device.
What is the Age and Date of Birth Jessie Lee? The best way to approach sideloading is to always have antivirus software installed.
Downloading Snapchat through the Google Play Store should alleviate any issues you may be experiencing.