[4dm1r4lg3n3r4l]

By locking their products "in", they're also locking third parties "out". How on earth would they be able to "lock-in" the Apple Watch to the iPhone while at the same time NOT "locking-out" third parties?

It's the same thing.

[_fuchs]

I have a apartement i rent out for vacation

If i offer to bring you fresh breakfast in the morning but not offer the service to other apartments down the street -> „lock in“

If i do not allow you to get your breakfast (of equal quality)elsewhere -> „lock out“

[BrawnyBadger53]

I think they're suggesting that lock in implies apple didn't write the code to help support 3rd parties. Lock out implies they actively wrote code to prevent 3rd parties.

[intrasight]

With other companies there may be a difference. But with Apple, for all intents and purposes, it's the same thing. Because they are hostile to third-party integration using undocumented API's or interfaces.