Looper – Boomerang Video Converter - This app can convert the camera roll video into a loop video to funk up the Instagram feed.
Gifox - Delightful GIF Recording and Sharing App for macOS
Live GIF - Convert live photos to GIF
GIPHY Create - Create animated GIFs from videos (by Giphy)
GifLab - The easiest way to create GIFs on your iOS device
Giffing Tool - Giffing Tool is simply put: The fastest creator of high quality captioned GIFs available.