At a glance
Monthly Active Users is an executive-overview metric tracked from PostHog data. It counts the distinct users who triggered at least one event across a rolling 30-day window, the broadest measure of your active audience over a month. Because it smooths out daily noise, MAU is the steadier line to watch for genuine audience growth or decline, and it is the denominator behind your stickiness ratio.
Calculation
Calculated automatically from your PostHog data. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading.Worked example
A representative reading of Monthly Active Users for a typical merchant on PostHog. Suppose MAU sits around 142,000 and rises to 158,000 over the next 30 days, an 11% gain against the prior period, after a content campaign launched on 05 May 26. Because MAU smooths daily swings, the rise is a credible sign the audience genuinely grew rather than a one-day spike. Cross-reference Daily Active Users for the short-term shape and Stickiness to see whether the larger base is also more engaged. For deeper investigation, use Vortex Mind to trace upstream causes; for natural-language exploration, ask Ask Viq.Sibling cards merchants should reference together
Reconciling against the vendor’s own dashboard
Where to look in PostHog’s own dashboard: In PostHog, MAU is a unique-users insight aggregated over a rolling 30-day window. Open that insight and align the window and property filters with the Vortex IQ profile. As with DAU, PostHog’s identity stitching influences the unique-person count. Why the Vortex IQ value may legitimately differ:
Cross-connector reconciliation: complement with sibling cards in the same category for the full diagnostic picture. For divergence investigations, use Vortex Mind.