The optional Sync module is now available as an in-app-purchase in the most recent version of Time Master.
Please note that this should work on most Android devices, however some earlier devices may not work. We've read that in some of the hardware manufactures did not enable "Multicast" support on their devices. Without that it will not work on that device. If it does not work on your device, you will need to Cancel your order or ask for a refund.
There is a website that has a tool to test the multicast support. Try the multicast_test first and see if it works on your devices?
http://cafbit.com/entry/testing_multicast_support_on_android
