Recruit 50 ideal participants
in 24 hours
Verified participants for any research — product, academic, or market. From $39.9/mo, no per-participant fees.
Sarah Chen
Marcus Wright
Aditi Kumar
Tom Fitzgerald
Yuki Nakamura
Emma Müller
David Park4 kinds of research, one search.
Your sprint planning is Monday. You need 10 PMs by then.
30 fintech CIOs. Not 30 students.
2 weeks to launch. Don’t ship blind.
Senior designers, not Mechanical Turk.
From research question to interview booked — in 4 steps
No panel signup. No screener approval. No waiting. Describe who, let AI do the rest.
Natural language: by role, industry, geography, expertise, seniority — even niche signals like "shipped a feature in last 6 months" or "published in HCI journals."
Lessie searches LinkedIn, company directories, professional databases, and verified networks — no panel signup, no screener approval, no waiting list.
Every result includes role, company, seniority, and a verified work email — with a relevance score. Direct outreach, no panel intermediary.
Send invites, book interviews via Calendly, run surveys, conduct usability tests — your tools, your incentives, your relationships. Lessie just brings the people.
Built for finding the right people — fast
Panels optimize for monetizing professional respondents. Lessie optimizes for your real problem: “find 10 specific people, fast” — whether for product, academic, or launch research.
Prolific gives you students. Respondent.io gives you panel regulars. Lessie understands "fintech PMs who shipped in the last 6 months" or "HCI researchers at top-20 universities" — the niche populations panels can't reach.
- Natural language: role, industry, expertise, recent activity
- Multi-source fusion: LinkedIn + academic profiles + company data
- Scored, ranked results — not a panel-ID dump
You contact participants directly through your own email — no panel platform sitting between you and them. Own the relationship, follow up, build a long-term research network.
- 95%+ verified work emails
- Send invites from your domain — better response rates
- Build a private panel you own (not platform-locked)
Stop waiting weeks for Respondent.io screener approval or Prolific to fill quotas. Type a query, get a ranked list of verified contacts in 60 seconds, send invites the same hour.
- Under 60s from query to verified contact list
- 1-click export to Calendly, Notion, Airtable, CSV
- AI-drafted personalized invite emails included
Respondent.io: $50-100/participant. User Interviews: $30-75/session. Prolific: $0.50/participant + completion bonuses. Lessie: flat $39.9/mo, recruit 5 or 500 — same cost. Spend your budget on incentives, not platform fees.
- No per-participant fees, ever
- No quota limits or screener bottlenecks
- You pay incentives directly — full budget goes to participants
Lessie vs. Respondent, User Interviews, and LinkedIn
Honest comparison against the tools researchers actually use today.
| Dimension | Prolific | Respondent.io | User Interviews | Lessie AI |
|---|---|---|---|---|
| Pricing | $0.50/participant + completion bonuses | $50-100/participant + screener fees | $30-75/session + monthly fee | Flat $39.9/mo, unlimited ✓ |
| Best for | Consumer / student studies | Consumer panels, some B2B | Designer / UX panels | B2B + academic + niche industry ✓ |
| Time to first list | Hours (if quota fills) | 2-6 weeks (screener review) | 1-3 weeks | Under 60 seconds ✓ |
| Targeting precision | Demographic + basic prescreens | Demographic filters | Industry + role tags | Natural language, multi-criteria ✓ |
| Contact info | Anonymous panel handles | Panel-mediated, no direct email | Same — platform-mediated | Verified direct work emails ✓ |
| Relationship ownership | Platform owns | Platform owns participants | Platform-mediated | You own — direct contact ✓ |
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