To install Adobe InCopy CC2018 you will need a Creative Cloud account (with a paid subscription for InCopy) as well as the "Creative Cloud Desktop App". For more information about Creative Cloud licensing please see the information here. The "Creative Cloud Desktop App" can be downloaded here.
IMPORTANT: If you haven't already installed CtrlPrint Transfer Manager (1.2.1 or higher), or if you have an older version you will need to do so. See the links for installing and updating Transfer Manager here.
If you are using Adobe's Creative Cloud Packager for installing CC2018 please use the instructions here.
1. Once the "Creative Cloud Desktop App" is installed click on the Apps option.
2. Click the v button found to the right of Install then choose Manage.
(Note: this option may be called Update if you have an earlier version of InCopy already installed.)
3. Click on Other Versions.
4. Click on Install for version 13.1 (this is CC2018).
If the download option is labelled "Try" it is because you are not logged in with an Adobe account with an active subscription for InCopy. You can still install InCopy as a free trial for 7 days, howevever after this time has expired you will need a subscription.