There's an app called BlockFab. It was free when I got it. It might be what your looking for. It's good for beginners or those looking for new to them ideas. Its probably what a lot of our experienced members just know. Gives basic blocks, amount of fabric needed. And will show you how it would look in different quilt layouts and color schemes. It does not tell you how to cut or sew the blocks. It is a nice resource. Good luck on finding something that meets your needs.