There's always risk but it varies greatly by platform. Twitter is by now notorious for doing this behavior. On the other hand Apple has a flourishing ecosystem

There's always risk but it varies greatly by platform. Twitter is by now notorious for doing this behavior. On the other hand Apple has a flourishing ecosystem of app developers. And FB has improved greatly moving from being Twitter like to closer to Apple. It's a function of maturity (young startups have growing pains on what they want to be and how they monetize) which can definitely create collateral damage. Mature companies like Apple don't experience the same degree of angsnt. It's no accident that Twitter, which has generally underperformed and disappointed more than its peers, is still screwing up and over its ecosystem far more than others.