Calendar plugins with subscribe option

We have had a lot of success with The Events Calendar on various installations. We now have a project that requires that users are able to subscribe to a calendar feed. This functionality allows people to keep their personal calendars in sync with our event calendars. Unfortunately, this obvious feature is not a feature of The Events Calendar and we have no visibility if or when it is on their product road map (even though this is a feature associated with many minimum release candidates).

We are looking for advice regarding what is the most compatible calendar plugin that has this required feature.

We are testing All In One Event Calendar and are looking for feedback on that an other any option.