Yes, because they're just web pages. Then why not just use the browser to display them?
That said I can think of some pretty good reasons.
- Users don’t understand it as well or are less comfortable with it.
- Users’ general preference for logical separation
- Mobile safari doesn’t support browser notifications.
- You won’t get browser notifications if you close the tab by accident
- You lose OS integration, like replying via OS notifications in Slack or using OS Music controls with Spotify
On top of all that a browser tab uses plenty of RAM as well so I don’t really see the upside of using the browser for these apps, either.
That said I can think of some pretty good reasons.
- Users don’t understand it as well or are less comfortable with it.
- Users’ general preference for logical separation
- Mobile safari doesn’t support browser notifications.
- You won’t get browser notifications if you close the tab by accident
- You lose OS integration, like replying via OS notifications in Slack or using OS Music controls with Spotify
On top of all that a browser tab uses plenty of RAM as well so I don’t really see the upside of using the browser for these apps, either.