PaintCube is a web-based 3d texture painting app
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Pro Accessible on the web
You can use this software on your devices for as long as it has a browser. This means you can work on your projects using your personal computer, laptop, and soon on your tablet.
Pro Supports layers
You can build your work in layers of texture information as you complete your model.
Con Not free
It's a subscription-based program. you'll have to pay between $5 and $20 in order to use it.
Con 14 day trial
Limited options during trial.