[threeseed]

Sure. But it is still easy to change phones.

You can buy/sell it on eBay. Or next upgrade cycle change brands.

[cannonedhamster]

Change phones and then lose literally every purchase you made via Apple. That seems to be the definition of vendor lock in.

[tareqak]

I'm not fully aware about how Google Play Store purchases work, but isn't it the same there if you switch between iOS and Android or vice versa?

[scarface74]

The sale of apps basically died years ago. Most of the revenue from apps is either coming from in app purchases of consumables or subscription service that are cross platform.

Music that you bought from iTunes has been DRM free for ages.

Most movies purchased from iTunes are transferable to Google Play, Amazon Video and Vudu vis the Movies Anywhere app.