User Interviews vs Optimal Workshop
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 $49 per session (pay-as-you-go; $41 and $36 on annual commitments)
PaidFrom $199 per month (billed annually, includes 5 launched studies)
Free tierWhat drives the bill
The metric that actually scales your invoice.
Per-participant recruiting fee plus the incentive you choose. Specialist B2B professionals cost considerably more.
Annual plans reduce the effective monthly rate substantially; recruitment is separate.
Free tier
Free to manage your own participants; recruitment is pay-per-participant.
Free plan with limited participants per study.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
User Interviews · since 2015
Established
Optimal Workshop · since 2008
Strengths
- Solves recruiting, which is the actual bottleneck in most research programmes.
- Handles incentive payment and scheduling logistics, saving substantial coordinator time.
- Works with whatever session tooling you already use.
- The reference tool for card sorting and tree testing; the analysis visualisations are excellent.
- Tree testing validates navigation before any build effort is spent.
- Well-established methodology support and training material.
Limitations
- No testing or analysis features — it is recruitment only.
- Panel is strongest in North America.
- Costs mount quickly for specialist B2B roles.
- Narrow scope — it does not do usability testing of interfaces.
- Expensive per seat for occasional use.
- Interface is dated in places.
Best for
Teams whose research is blocked on finding and paying the right participants.
Teams restructuring navigation, taxonomy or content on a large site.
All of these integrate with: Slack.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.