There's a new Disney comics app for iPad & iPhone...it does not have the boom created titles or material, though it does have some pixar content. It is NOT part of the Marvel app, nor is it even made by comicology. I think yhe contents are From the Disney magazines maybe? In the settings you can select alerts for when new content arrives by character...you can select monsters Inc, toy story, wall-e, jack sparrow, tron, tangled, and so on...BUT NO MUPPETS.
Through the marvel comics app, I sent in feedback asking if they will put up the Muppets since Marvel now had the rights. I got back the generic form response (note, it doesn't even acknowledge "Muppets") :
Marvel app said:
Thank you for contacting Marvel Comics with your content suggestion.
We are constantly reviewing our large library to determine which titles should be added to the Marvel Comics App. We encourage all content suggestions as we use them in assessing the demand for a given character or fan favorite series.
Don’t forget that to check back every Tuesday as there are over 40 new titles for sale so you’ll have plenty of comics to choose from!
Thank you for your business.
Sincerely,
Marvel Comics App
So I guess if you want digital marvel Muppets, summit your request through the app's feedback option in settings.