SampulThe details, without the fluff.
How Sampul keeps your data clean, who it's built for, what it costs, and how it stacks up against the alternatives — all in one place.
The real problem
Paid help.
Garbage data.
You pay a friend to "help" fill 50 responses. They click through 50 identical answers in 4 minutes. Your defence panel asks why every respondent answered "Strongly Agree" to "Have you ever broken the law?" You can't explain.
Sampul catches that automatically. Three layers, all running on every submission. You see only the responses that pass.
Attention checks
Hidden questions with required answers. Skim-fillers fail them and don't get paid — and you don't get charged.
Timing analysis
We track time per question. A 200-word essay answered in 3 seconds? Flagged. Statistically rushed submissions get held for review.
IP + device + velocity
Same phone filling 5 'different' responses? Same IP submitting in 30-second bursts? Brand-new account with no profile? Blocked silently — slot stays open for a real respondent.
Use cases
Built for your kind of research.
From a final-year thesis to a brand's next product — if you need real answers from real Nigerians, start here.
Final-year & thesis
Hit your sample size before the deadline — with data you can defend in a viva.
Product validation
Test a feature, price, or idea with your exact target user in days, not weeks.
Brand & market insights
Agency-grade answers at a fraction of the cost and turnaround.
Civic & NGO — soon
Fast, representative sentiment, opening once the compliance layer is ready.
Pricing
10%. No subscription. No setup.
You pay a 10% service fee on top-ups. That's it. The other 90% goes into your wallet, locked against your form responses. Unused budget refunds back.
Goes to your respondent on every valid submission
Service fee (10%) — keeps the lights on
Total you transfer per response. Pay only what you use.
Withdrawals (respondent side): a 10% service fee on the way out, ₦2,000 minimum (₦1,800 lands), paid out manually to your bank within 24 hours.
Why not just…
Sampul vs the alternatives
Real, unique respondents
Targeting (age, gender, location)
Fraud detection
Pay-per-response
Refund unused budget
CSV + analytics + per-person view
Defendable in your viva
FAQ
Quick answers
Seen enough?
Start collecting.
Free to sign up. Pay only for the responses you actually receive. Refunds on unused budget. No subscription. Nigerian-bank-native.