The number of paying players of Pokemon GO in the US has dropped 79% since its peak on 15 July 2016.
The data comes from Slice Intelligence, which also found that Pokemon GO's success brought in almost twice the number of IAP purchases across the whole mobile market.
That number has since fallen back to the pre-Pokemon GO average, however.
Despite the sharp decline in paying players, the game managed to generate 28.4% of all IAP revenue across the mobile market in the US in August 2016. That's six times more than Candy Crush Saga made, according to Slice.
More, more, more
On top of this, as of 3 September, almost a quarter of all mobile game buyers in the US made a purchase in Pokemon GO.
The game's success has also led to increased sales of online merchandise with Pokemon games and toys generating 233% more revenue year-on-year.
It's a sure sign once again that while Pokemon GO's players and spenders may be in decline, as has been noted before, it's still settling in to find its hardcore players that will keep its revenue ticking over in the long-term, rather than collapsing under its own weight.
And it's also finding ways to make The Pokemon Company outside of the game itself and into merchandising.