The quickest way to tell is if there's a "Server installation" and "Client installation" section to the patch article. If there isn't a Client installation section, then it isn't relevant for Assure client.
None of the current (as of today) Assure 9.3 patches apply to the Assure Client.
To use an example from Assure 9.2 of what the two sections would look like, the IA-9.2-335489-1 patch is applicable to Server and Client installations.