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 $6 per participant (indicative, plus platform fee)
PaidFrom $89 per month (indicative, Basic)
Free tierWhat drives the bill
The metric that actually scales your invoice.
You set the incentive with a fair-pay minimum, plus a percentage service fee. Far cheaper than moderated-research platforms.
Panel responses are purchased separately per participant, typically a low single-digit dollar amount for general audiences.
Free tier
No subscription; pay per participant.
Free plan with limited monthly responses.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
Prolific · since 2014
Established
Lyssna · since 2011
Strengths
Limitations
Best for
Survey-based and quantitative studies where data quality matters and budget is limited.
Design teams that want quick evidence for everyday interface decisions.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.