We do have a fully functional demo of EasyWorship that does not expire.

It will, however, have a watermark on the Live Output if you try to use it in a live service.

You can download the demo here.

If you would like to try EasyWorship without the watermark in a live service, you can purchase a one month subscription to remove the watermark and can then cancel after one month if it is not the right presentation software for you.