UserInterviews.com is a recruiting marketplace that finds participants for you. Diaform runs the actual conversation with AI. They sit in different categories, many teams use both.
14-day free trial · No demo required
Side by side
Primary function
Diaform runs the conversation itself, the AI runs each conversation and produces synthesis at the end.
Recruits the participant and manages the panel. The platform does not, by itself, run or moderate the conversation.
Recruiting cost model
No recruiting fees, you bring your own audience. Each conversation runs inside your monthly plan with no per-call charge.
Pay per recruit plus participant incentives (often $50-$150 each). Costs scale with study size, not seat count.
Pre-screened demographic database
No built-in participant database, you target customers, trial users, or segments from your own CRM and audience lists.
Multi-million-strong pre-screened participant pool with demographic, behavioral, and professional targeting filters.
You bring participants
Designed around bring-your-own-audience: share one link via email, in-app, Slack, or QR, no recruiting layer needed.
Researcher Hub also lets you manage your own panel/CRM, but the platform's value lives in the recruiting marketplace.
Built-in conversation tool
Full AI-led conversation surface with adaptive follow-ups (1, 3, 5) and per-response synthesis built in.
Recruiting-first. You use Zoom, Google Meet, or another tool to actually run the call.
Live AI-led conversations
AI runs every conversation live, probes vague answers, and returns summaries, sentiment, answer confidence, optional notable quotes, and the transcript.
Recruiting platform, moderation is handled by whichever conversation tool you bring (a researcher, a Zoom call, a survey).
Pricing model
Subscription: Starter $49/mo ($40/mo annual), Standard $89/mo ($74/mo annual), Pro $199/mo ($165/mo annual), and Business $499/mo ($415/mo annual). Enterprise is custom. 14-day trial.
Researcher Hub starts ~$175/yr (basic) and scales to enterprise. Recruiting fees and incentives are separate per study.
Time to insight
Minutes from signup to live link. Synthesis arrives the same day as the conversations, no analyst review session required.
Recruiting cycle, scheduling, then live calls, then manual coding, most teams measure insight delivery in weeks.
Best for
You have the audience but the bottleneck is depth and synthesis at scale, churn, onboarding, JTBD, concept tests.
You can't reach the right participants, new market, niche persona, or pre-launch with no users yet. Often complementary.
Primary function
Diaform runs the conversation itself, the AI runs each conversation and produces synthesis at the end.
USERINTERVIEWS.COM
Recruits the participant and manages the panel. The platform does not, by itself, run or moderate the conversation.
Recruiting cost model
No recruiting fees, you bring your own audience. Each conversation runs inside your monthly plan with no per-call charge.
USERINTERVIEWS.COM
Pay per recruit plus participant incentives (often $50-$150 each). Costs scale with study size, not seat count.
Pre-screened demographic database
No built-in participant database, you target customers, trial users, or segments from your own CRM and audience lists.
USERINTERVIEWS.COM
Multi-million-strong pre-screened participant pool with demographic, behavioral, and professional targeting filters.
You bring participants
Designed around bring-your-own-audience: share one link via email, in-app, Slack, or QR, no recruiting layer needed.
USERINTERVIEWS.COM
Researcher Hub also lets you manage your own panel/CRM, but the platform's value lives in the recruiting marketplace.
Built-in conversation tool
Full AI-led conversation surface with adaptive follow-ups (1, 3, 5) and per-response synthesis built in.
USERINTERVIEWS.COM
Recruiting-first. You use Zoom, Google Meet, or another tool to actually run the call.
Live AI-led conversations
AI runs every conversation live, probes vague answers, and returns summaries, sentiment, answer confidence, optional notable quotes, and the transcript.
USERINTERVIEWS.COM
Recruiting platform, moderation is handled by whichever conversation tool you bring (a researcher, a Zoom call, a survey).
Pricing model
Subscription: Starter $49/mo ($40/mo annual), Standard $89/mo ($74/mo annual), Pro $199/mo ($165/mo annual), and Business $499/mo ($415/mo annual). Enterprise is custom. 14-day trial.
USERINTERVIEWS.COM
Researcher Hub starts ~$175/yr (basic) and scales to enterprise. Recruiting fees and incentives are separate per study.
Time to insight
Minutes from signup to live link. Synthesis arrives the same day as the conversations, no analyst review session required.
USERINTERVIEWS.COM
Recruiting cycle, scheduling, then live calls, then manual coding, most teams measure insight delivery in weeks.
Best for
You have the audience but the bottleneck is depth and synthesis at scale, churn, onboarding, JTBD, concept tests.
USERINTERVIEWS.COM
You can't reach the right participants, new market, niche persona, or pre-launch with no users yet. Often complementary.
The platform finds the participant. You still need a tool to actually run the call and a process to synthesize after.
Recruiting fees plus participant incentives mean each conversation comes with a real per-call cost.
Even with great recruiting, scheduling 30 calls a week eats time, and most insights don't justify that overhead.
Adaptive AI follow-ups (1, 3, or 5 deep) replace live moderation, at any scale.
If you have customers or trial users, Diaform is enough on its own. No recruiting fees per call.
Summaries, sentiment, answer confidence, and optional notable quotes per completed response.
Email, in-app, Slack, QR. Branded subdomain by default; custom domain on Business and Enterprise.
13 topic + 5 sentiment triggers can alert Slack, capture an email, offer a discount, book a meeting.
Voice answers are 2-3× longer. Run conversations in respondents' native languages, summaries in English.
The marketplace wins when you need participants you can't reach: a new market segment, a niche persona, or pre-launch research with no audience to draw from. It also fits teams scaling a research panel that need recruiting, incentives, and Researcher Hub to manage it all.
Diaform is the better choice when you already have an audience, customers, trial users, an email list, and the bottleneck is actually running and synthesizing the conversations, not finding people. It's built for continuous research at SaaS speed: churn calls, onboarding, and concept tests every week instead of every quarter.
The practical details behind setting up, running, and scaling this kind of research with Diaform.
Mostly complementary. UserInterviews.com recruits; Diaform runs the conversation. Many teams pair them: the marketplace for the panel, Diaform as the conversation surface.
Explore the other ways Diaform can turn a static request for feedback into a useful conversation.
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