There are several popular AI painting apps available internationally、Here are a few examples:

1、DeepArt: This app allows you to transform your photos into art using the styles of famous artists.

2、Prisma: Prisma uses artificial intelligence to turn your photos into artworks that resemble paintings by famous painters.

3、PicsArt: While not exclusively an AI painting app, PicsArt offers AIpowered tools for photo editing and creating art.

4、Adobe Fresco: Adobe Fresco is a painting and drawing app that includes live brushes powered by Adobe Sensei AI technology.

5、Autodesk SketchBook: This app is more traditional but has some AI features to assist with drawing and painting.

6、Artset: Artset provides various brush types and styles to create digital paintings.

7、Google Arts & Culture Experiments: Google occasionally releases experimental projects that use AI to create art or analyze existing artworks.

These apps can be found on both iOS and Android platforms, and some may also have desktop versions.