Founder of engagedcount.com here. Facebook hasn't actually announced that they will end shared counts via their API. They have just made it much more difficult

Founder of engagedcount.com here. Facebook hasn't actually announced that they will end shared counts via their API. They have just made it much more difficult for the average programmer to get the numbers. We're able to work around a lot of the limitations like api keys and rate limits that Facebook has put in place.