December is behind us which means it's time to check in on Twitter's mobile revenue, a monthly series I started back in 2019, when Twitter Blue launched.
Twitter is now X, and X has crossed a big milestone in December!

According to our estimates, X earned $7.6M of net revenue in December. That's a 22% increase from November's total, which was already higher.
It also happens to be the most X has ever earned in a single month! And that's net revenue, which means what X gets to keep after Apple and Google take their share.
In terms of consumer spending, or gross revenue as developers see it, users gave X $11M. December is the first double-digit month for spending on X. That's a milestone.
The US continues to be X's biggest market with a 60% share of the total with no other country having a double-digit share. Japan comes close with 8% with the UK, Saudi Arabia, and Canada rounding out the top 5. Yes, Saudi Arabia.
Considering nothing major has changed with X in December, revenue growth is a good proxy for both engagement and demand - both climbing.
With an election coming, I expect this revenue to continue growing faster.
December saw a curious split: downloads dropped 2% while revenue sat at $1.3B. ChatGPT and TikTok dominated both charts as the mobile industry enters a new maturity phase.
Wall Street bet $2 billion on Polymarket, and downloads surged 1,172% in December. The prediction market banned in 2022 is now where Wall Street looks for signals.