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testcritic

Lyssna vs Prolific

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 $166 per month (Growth, billed annually)

Free tier

From $8 per participant/hour minimum incentive, plus platform fee

Paid

What drives the bill

The metric that actually scales your invoice.

Growth buys 5 in-depth studies a month, 5 seats and unlimited self-recruited responses. Panel responses are purchased separately per participant, typically a low single-digit dollar amount for general audiences.

You set the incentive subject to a fair-pay floor of $8/hour ($12 recommended), then Prolific adds a platform fee — around 42.8% for commercial customers, 33.3% for academic and non-profit. Budget the fee: it is a large fraction, not a rounding error. Still far cheaper than moderated-research platforms.

Free tier

Free plan: unlimited quick studies, 3 seats and 15 self-recruited responses.

No subscription; pay per participant.

Open source

Self-hostable

No-code authoring

Languages

Codeless
Codeless

Platforms

Web
Web

Fits teams

Solo / side projectStartupScale-up / mid-market
Solo / side projectStartupScale-up / mid-marketEnterprise

Adoption

Established

Lyssna · since 2011

Widely used

Prolific · since 2014

Strengths

  • Extremely fast — a first-click test can be designed, run and answered inside an hour.
  • Cheap enough to use for routine design decisions rather than special projects.
  • Simple test types that non-researchers can run correctly.
  • Notably better data quality than generic survey panels.
  • Fine-grained prescreening across hundreds of demographic attributes.
  • No subscription — pay only for what you run.

Limitations

  • Narrow: it answers specific comparative questions, not exploratory ones.
  • No moderated sessions.
  • Panel is general-population; niche B2B audiences are hard to reach.
  • Recruitment only; you supply the study and the tooling.
  • Skewed towards students and younger, online-native participants.
  • Not suited to recruiting senior enterprise decision-makers.

Best for

Design teams that want quick evidence for everyday interface decisions.

Survey-based and quantitative studies where data quality matters and budget is limited.

Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.