You can use Paperclip, a utility created by Frog to export animations as.
The license is just for people who want to donate to the project and get a little something out of it, none of the main features will be locked from you for not having the license. If you just want to donate to me directly, I have a Ko-fi page if that's more your thing. If you'd like to help me develop Clipnote studio, you can buy a $5 Clipnote license which gives you access to custom themes and a fancy little supporter badge on the main menu. I cannot ensure that your tablet will work with the software. For now you can use Wine to get it to run.
Clipnote allows you to create basic animations that you can share with your friends. The final version of Flipnote Studio 3D itself was not launched in Japan until July 2013. To note is that the animated storyboard clips are in the same resolution as the original Nintendo DSi app, and the shorts were likely in production since circa 2012. Clipnote studio is basic animation software and a spiritual successor to the now defunct Flipnote studio by Nintendo. It was created using the original Flipnote Studio.