Yes, you can make morphs for non-human figures with any of the aforementioned programs.

The figure will need to have unused injection channels to accept the morph data. You may have to create the channels for some figures, there are several ways to accomplish  this if necessary.

Personally I use Compose to create a joined and vertex mapped copy of a figure to sculpt on. It's an extra step but it ensures that the vertex order is maintained across multiple apps saves all that wasted time caused by exploding morphs. Another benefit is that it automates part of the transfer process.

My usual workflow is Compose>Blender>Zbrush>Compose>Poser's Little Helper>Poser/DS

Compose to create the joined vertex mapped figure.
Blender to do the gross sculpting
ZBrush for the fine detail
Compose to transfer the morphed object back to the original grouping (vertexes in order)
Poser's Little Helper to create the INJ/REM poses
Poser/DS to use the morphs.

Poser's Little Helper is free and, as mentioned by lesbentley, very fast after the initial set-up.

You have to create a .mic file of the figure which is a simple text file of the available channels saved with the .mic extension and a project file for the figure.

Once that has been accomplished select the .mic file and the project file from the lists, load the original figure, load the morphed figure, select which channel you will use, name the channel and dial, then proceed to create your INJ, REM, & VIS poses by clicking the appropriate buttons. PLH has documentation that covers the process more in-depth.

There are several other apps that can create the INJ poses so you can use whichever suits you.

Compose is also free but will require Java to run.