Pepperfilters - Pepper's Snapchat Geofilter creator allows you to easily create a custom snapchat geofilter for your birthday, wedding or event.
Refined Twitter - A browser extension that improves the Twitter experience
Snaptag Editor - Create your own custom Snapchat code 👻
Typefully - Write & publish great tweets, without distractions
Vidcode - Build your own Snapchat filters with code
Tweet Tray - Tweet quickly from your desktop without any distractions.