[Request] Multi-player coloring

I was browsing coloring games the other day because my daughter will soon be getting her first smart phone when I found this game: https://play.google.com/store/apps/details?id=com.domobile.pixelworld

One of the advertising pictures mentioned coloring the same street together so I was intrigued. It'd be cool to work on a large project with her over time. Sadly this app doesn't seem to actually allow cooperative coloring and just allows you to color your own version. I'm wondering if there is any app like that out there?

• Coloring app, either by number or pixel based. In other words, predetermined coloring.
• Multi-player features, such as working on separate pieces of a larger project or similar.
• Prefer free, but not against paid if I can verify the multiplayer aspect. Like paying to remove ads.
• Content suitable for a pre-teen. In other words, not baby level content.

Thanks in advance!