Hosting Oracle Application Instance is very costly and the license itself is very costly and it needs a lot of hardware resource for the middle tier and underlying Database.
Fortunately the following are available
This screenshot is taken from the 12.1.1 environment http://vis1211.solutionbeacon.ne
2. Solutionbeacon.com provides
Release 11.5.9 (a159vis2)
Release 18.104.22.168 (a510vis5)
username : operations
Password : welcome
Release 11.5.10 (a510vis1)
Please write comment if you have trouble accessing the above environments .