ComiXology - Read over 75000 comics and over 700 free comics available from publishers such as Marvel, DC, Image, BOOM, IDW, Top Shelf, and Oni Press on your iPhone, iPad, Kindle Fire, Android, Windows, browser and more.
Tapas - Tapas – Comic, Novel and Stories is free to use digital comic application by Tapas Media that puts tens of thousands of comics and web novel on your mobile device.
Legend - Animate Text in Video & GIF
GlobalComix - Professional Comics Publishing
Marvel (Comics) API - Create awesome stuff with the world's greatest comic API
Comixology Unlimited - Netflix for comics and graphics novels by Amazon