Of course, many users don't think about lock-in until they buy a Roku and discover all those movies they bought on iTunes won't play on it, but I think about it

Of course, many users don't think about lock-in until they buy a Roku and discover all those movies they bought on iTunes won't play on it, but I think about it every single time I install an app. That's why I prefer apps that don't burden me with the worry.