Why? Nintendo never gave a concrete reason, but speculation is fierce:
If you're looking to get your animations onto modern platforms, the Sudomemo Help Center
Nintendo cited "technical issues" and "service stability," but community forensics revealed three likely reasons:
: An iOS app designed specifically for "flipnote-style" animations that supports the Apple Pencil and includes a social sharing system.
Nintendo promised a global release in "early 2013." That came and went. In 2014, they officially canceled it.
Flipnote Studio Mobile offers a range of features and tools that enable users to create, edit, and share their own flipnote animations. Some of the key features include: