What are some alternatives?
When comparing Instagfy and QGifer, you can also consider the following products
Plotaverse - Photo animation made easy, animate like the pros
ezgif.com - Ezgif.com is simple online gif maker and toolset for basic animated gif editing.
Tall Tweets for Google Slides - Tweet your Google Slides as animated GIF images
LunaPic - Free and Easy to use online image effects. Try the effect.
GifBook - Make animated GIFs into paper flip books
Gifsicle - Gifsicle is a powerful, simple command line tool for creating, editing, and optimizing animated GIFs.