Prolific Alternative

A Panel of 1M+ That Never Runs Out

Or gives bot responses

Prolific connects researchers with real human participants. TestSynthia replaces the entire panel with 1M+ stateful AI personas — instantly available, perfectly consistent, and directionally accurate. No screening, no bot checks, no quota anxiety. $2.99 to start.

Compare with Prolific logoProlific

10m

time to first result

$2.99

demo run

1M+

stateful personas

The Comparison

Real panels vs. simulated markets.

Capabilities
Prolific logoProlific
TestSynthia logoTestSynthia
Participant source
Real humans (120K+ panel)
1M+ AI personas
Availability
Quota-dependent, fills slowly
Instant — no limits
Cost per response
$1-3 + 33% platform fee
~$0.16 (included in $79/mo)
Quality control
Attention checks + bot filtering
Calibrated consistency
Niche quotas
Often unfilled or expensive
Always available

The Panel Problem

Real participants are unpredictable.

The Bot Epidemic

Prolific has a reputation for quality, but even they battle bot infiltration, attention check failures, and speeders. You spend hours cleaning data before you can analyze it. Simulated personas don't bot.

The Quota Wait

Need 200 'C-level executives at Series B startups'? That quota might take days to fill — if it fills at all. Niche audiences on real panels are scarce and expensive. TestSynthia's niche personas are always ready.

The Hidden Fees

Prolific charges $1-3 per response plus 33% platform fees. A 500-response study costs $665-1,995. And that's before you factor in data cleaning time. TestSynthia: 500 responses for $79. Flat.

When to Choose

Which Panel Fits Your Study?

Use Both If...

Use TestSynthia for rapid iteration and hypothesis testing (10 studies). Use Prolific for final validation on your top 2 findings (1 study). Maximize speed, minimize panel costs.

Choose Prolific If...

You need real human responses for academic publication, behavioral economics, or final investor validation. Real data has credibility that simulation can't fully match.

Choose TestSynthia If...

You need fast, affordable, consistent responses for concept validation, pricing, and messaging. You're running frequent studies and can't afford panel costs or wait times.

The difference

Real panel logistics vs.
instant simulation.

Participant source:1M+ AI personas
500-response cost:$79
Fill time:~10 minutes
Quality control:Calibrated consistency
Niche quotas:Always available
Best for:Rapid business decisions
Participant source:120K real humans
500-response cost:$665-1,995
Fill time:Hours to days
Quality control:Attention checks + cleaning
Niche quotas:Often unfilled
Best for:Academic + real validation

Before

Recruit, screen, wait, clean, analyze

After

Filter, run, analyze in 10 min

Pricing

Simple pricing. No per-response fees
Flat fee, unlimited niches

Recommended
TestSynthia logo

TestSynthia

$79/month
Try a Demo Run
  • 1M+ stateful AI personas
  • 500 responses per month
  • Priority generation (~10 min)
  • Top-ups available
  • No contract
Prolific logo

Prolific

$1-3/response + 33% fee
Contact Sales
  • 120K+ real participants
  • Academic-grade quality
  • Demographic screening
  • Bot filtering

Researchers pay $1-3 per response plus 33% platform fee. 500 responses = $665-1,995. Niche quotas may cost more.

Frequently asked questions

For rapid product validation, concept testing, and pricing research — yes. For academic studies requiring real human participants and peer review — no. Prolific's real panel has credibility that simulation can't replicate for publication.

Ditch the panel wait.
Get instant signal.

Real panels are valuable but slow. Simulated panels are instant and consistent. Run your first test and feel the difference.

$2.99 to start
Results in ~10 minutes
No recruitment needed
Try a Demo Run