Yes, the current Mac App Store version (v11.3.7) is compatible with Yosemite. If you have a non-Mac App Store version of TypeStyler 11 that was purchased direct from Strider Software there is a Free Update that resolves the launching issue some users had.
No, TypeStyler 10 (v10.6.75) is compatible on Macs running mac OS 10.4.11 through 10.7.x.
If you try launching TypeStyler 10 and are running Mac OS 10.10 Yosemite the TypeStyler icon will bounce on your dock and fail to launch.
If you purchased TypeStyler 10 in November of 2012 or later contact Strider Software with your purchase information to receive a new TypeStyler 11 registration number.
If you purchased TypeStyler 10 prior to November of 2012 you will need to purchase the latest release of TypeStyler 11.
Yes, you can access the html based Help here: www.stridersoftware.com/help
If you have tried launching TypeStyler and only have a bouncing TS icon in your Dock there is a damaged file that needs to be removed. There are 2 locations the damaged file may be located. Once the files are removed the System will create a new undamaged file.
You should now be able to launch TypeStyler 10.6.75 successfully in Lion.
In this case the solution is to throw away your current TypeStyler and replace it with a fresh copy of the latest TypeStyler. Click here to download the latest TypeStyler now.
Please contact us if you have trouble, but we haven't had any reports that a restart or reinstall has not resolved.