I am trying to setup a second location to test, but when it "updates IP" it updates both hosts. Seems there is only one? Another product I used in the past allowed 5, they could all have different IPs. I am not so concerned about the $9.99 yearly fee and also considering using your DNS service. Just running some testing with the free edition. Thank you.

You can have 4 hostnames under the free plan. Use the 'Group' feature to assign different hostnames to different location and use the 'Group' parameter in the IP update client to update that particular hostname.