Vi is a free multimedia application developed by Pinkbird Studio for Android devices. With Vi, you can easily transform your videos into art pieces by applying carefully-selected filters and adding different effects overlays.

The app offers a wide range of filters to cater to all your needs, whether you're looking for documentary effects or artistic expression. You can also add multiple stickers over your selfie video and crop the video in your favorite size.

In addition, Vi allows you to customize your video background by adjusting border videos, making it square ready for Instagram, and adding a colored border to make it square ready. You can even move the video/photo inside the square. The app has an easy-to-use interface and supports full-screen vertical video.

Vi offers more than 30 filters with brightness, contrast, temperature, and other functionalities. You can also add music to your videos. Once you've finished editing your video, you can easily share it on any networking platforms like Facebook, Twitter, and more.

Overall, Vi is a great app for those who want to enhance their videos with filters and effects. Download it now and have fun creating unique and artistic videos with ease.