When comparing Substance Bitmap2Material vs Crazy Bump, the Slant community recommends Crazy Bump for most people. In the question“What are the best programs for making height maps, normal maps, and/or other maps?” Crazy Bump is ranked 2nd while Substance Bitmap2Material is ranked 4th. The most important reason people chose Crazy Bump is:
Almost anyone that has some knowledge on bump maps, can use this software, just dump in your image, adjust a few sliders, and export your maps.
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Pros
Pro Generates several outputs from a single image
B2M generates any output that you may need from a single image automatically (base color, normal, metallic, roughness, ambient occlusion).
Pro Intuitive interface
Almost anyone that has some knowledge on bump maps, can use this software, just dump in your image, adjust a few sliders, and export your maps.
Cons
Con Comes at a price
Sets you back over 100 dollars.
Con Not a complete tool
B2M will only allow you to create a normal map from an existing image. You cannot create a custom texture from scratch with it.
Con Pricey
It's a nice software, but you are going to have to dump 50 to 100$ dollars on it. However, you can give it a free go for thirty days.