On: Reddit CEO tells employees that subreddit blackout ‘will pass’

[adrr]

what percentage of reddit users use apollo or another 3rd party app?

[chicagobob → adrr]

Depending on which post you look at somewhere between 1% - 6%. But, the more important question is which users use Apollo (or other 3rd party tools).

The answer overwhelmingly is mods and content creators, the most important people to Reddit's success.