Bluesky User Count.

The Bluesky user count, on Bluesky’s own figures, is over 44 million as of May 2026.

That number is real and it is still rising, but the pace has slowed since 2025, and it is not the same thing as the number of people using the app on a given day.

Data on Bluesky’s size here comes from Bluesky itself: every figure is one the company published, in the order it published them.

Every figure Bluesky has published

Bluesky has given a running total at four points:

• October 2024: Bluesky “now exceeds 13 million users”, announced with its Series A funding round.
• 2025 as a whole: the company says it “grew from 25 million to 41 million users” during the year.
• March 2026: “over 43 million global users”, in its Series B announcement.
• May 2026: “over 44 million users”, in the answer to “How many people are on the app?” on its FAQ.

The October 2024 announcement also gives the starting point. Bluesky says that since raising its seed round it grew from an invite-only app with 1 million users to an open app serving more than 13 million people. It names the United States, Brazil, Japan, the United Kingdom and Germany among the countries those millions came from.

The growth is real

From 13 million in October 2024 to over 44 million in May 2026 is more than a threefold rise in about nineteen months.

The activity figures back it up. Bluesky’s 2025 Transparency Report says users created 1.41 billion posts in 2025, and that this was 61% of all the posts ever made on the network. So most of what has ever been posted on Bluesky was posted last year.

The growth is slowing

Bluesky’s own figures show where the surge came from. In 2025 the count rose by 16 million, from 25 million to 41 million.

In 2026 the count has moved from 41 million to over 43 million by March and over 44 million by May. Bluesky does not say how far “over” means, so the exact gain is unknown. On these figures, though, the first months of 2026 added users more slowly than 2025 did.

That is not a collapse. A network adding a few million people in a few months is still growing. But a plan built on the 2025 pace would be built on a pace Bluesky’s own numbers no longer show.

What the number does not tell you

None of the four Bluesky pages behind these figures says what counts as a user. None gives a daily or a monthly active user figure, the measure of how many people actually turn up.

That matters for one practical reason. A total that counted every account ever opened would keep rising even if people stopped using the app. Without an active figure, nobody outside Bluesky can tell how many of the 44 million log in on a typical day.

So the honest way to read the number is as a ceiling on the audience, not a measure of it. We would treat any platform’s headline total this way until it publishes an active count, and our guide to where to find a platform’s real user numbers sets out what to look for.

Why the totals arrive when they do

Two of the four figures were published alongside funding news. The 13 million figure came with Bluesky’s $15 million Series A in October 2024. The 43 million figure came in a March 2026 post about its $100 million Series B, which Bluesky says it raised in April 2025.

There is nothing wrong with that. It does mean the totals arrive when the company has a story to tell, not on a fixed schedule, so there can be long gaps between them.

How a brand should size Bluesky

The headline total is the wrong number to plan around. The useful number is the audience your own account can reach there.

In practice that means three questions:

1. Are the people you want to reach already posting on Bluesky, and in which feeds?
2. How do your posts there perform against the same posts on your other channels, over the same weeks?
3. Is that response growing, flat or falling month on month?

If those answers are weak, a 44 million total does not change them. If they are strong, Bluesky earns a place in the plan whatever the headline says. An audit of your social channels is the cleanest way to answer them side by side.

How NBK thinks about platform totals

A user total is a reason to look at a platform, not a reason to be on it. The decision rests on whether your audience is there and whether you can serve it on a rhythm your team can keep.

That is why we size every channel by its own results before we give it a share of the calendar. Bluesky is no different, and its numbers, read honestly, support a test rather than a commitment.

Next step

If you are weighing Bluesky against the channels you already run, start with the audience you have, not the total Bluesky has. Our guide to choosing the right social media platforms for your brand sets out how we make that call.