A free program for Android, by Triangulate Inc..

SwipeStudio: Geofilter & Lens Maker for Snapchat

SwipeStudio is the easiest way to create professional quality Snapchat filters and lenses for your special events. Just pick a template and customize it to your liking. Once you're finished, you can submit your designs to Snapchat directly from the app. We take care of the rest, so you don't have to worry about the details. It's as easy as 1-2-3!

We have hundreds of filters and lens designs to help you out. You can find everything from wedding and birthday filters, to cute kittens and puppies. It's all there, and it's all free!

If you want to create your own filters and lenses, SwipeStudio has a whole bunch of tools and resources that you can use. You can find text, fonts, and other styles that you can use to customize your designs. You can even make them a little more unique by adding a little extra flair.