If you are just looking for somewhere to try out Apex, i.e. not run a production application, then apex.oracle.com is totally free and great for this purpose.
Other than that, you are unlikely to find any free Apex hosting anywhere.
There is NO SUCH THING AS A FREE LUNCH.... Why would you expect someone to offer you a free hosted instance of APEX?
There are CHEAP hosting services, but then again you get what you pay for (XE, limited disk space, limited version of database)
Los Alamos, NM
i use an AWS redhat server on EC2 Free tier ( one year free server. ) And have installed Oracle XE on this. Have not checked out the new XE 18
Although it is limited, (storage, xe perfromance etc) it is working for me, but it is mostly a personal play around environment.
Thank you for your response.
Meanwhile, how do I go about the apex.oracle.com that you suggested?
Thank you for your response
Thanks for your response.