What Bitcoin applications do you most want to see?

What sort of Bitcoin ecosystem applications do you most want to see that you think could most help grow Bitcoin's adoption and get people using it?

To prime the pump a little bit, I'll give a few examples: app to make it easier to onboard, p2p exchanges, LN integration apps, app for escrow services, bitcoin browser, etc.

Edit: After the first couple comments, I want to make clear I'm not asking what adoption step you want to see come to fruition. I'm asking for what application (aka software) do you most want to see get built in the Bitcoin ecosystem that could help adoption. What bitcoin app(s) do you think can most increase people's interest in owning and using bitcoin? I even gave examples, so don't know why the first couple people answered a completely different question ????