Our templates can be opened with After Effects CC 2015 trial version, all effects and animation will work as for the fully license version, just make sure to complete your customization and render the project by 30 days before the trial expires.
Limitations of the trial version (From the Adobe website)
The trial version of After Effects includes all of the codecs that are included with the full version of After Effects. This means that you can import and export to all of the supported file formats using the trial version. The free trial version of Adobe After Effects software does not include some features that depend upon software licensed from parties other than Adobe. For example, Cycore (CC) effects, mocha-AE, mocha Shape, FreeForm, and Color Finesse are available only with the full version of Adobe After Effects software. (Keylight is included, however.)