Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
From $24 per month (indicative, Growth by event volume)
Free tierFree
FreeWhat drives the bill
The metric that actually scales your invoice.
Event-volume pricing with an unusually generous free tier for early products.
Free with no traffic cap. Microsoft uses aggregated data to improve its products, which is the trade you are making.
Free tier
Free plan with a large monthly event allowance.
Everything, unlimited, at any traffic level.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Category standard
Mixpanel · since 2009
Category standard
Microsoft · since 2020
Strengths
Limitations
Best for
Product teams that want fast, self-serve behavioural reporting.
Almost anyone starting with session replay, and anyone whose paid tool is mainly used for basic replay.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.