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A 2026 head-to-head on cost-per-complete, response rates and scalability — traditional telephone interviewing vs WhatsApp-native, automated market research.
CATI (Computer-Assisted Telephone Interviewing) is the long-standing backbone of telephone-based market research — trained interviewers reading scripted surveys to respondents on the phone. Yazi is the modern automated alternative: WhatsApp-native, scalable, and dramatically cheaper per completed interview, especially in markets where cold-call pickup rates have collapsed.
- Yazi is almost always the cheaper alternative to CATI — reported CATI cost-per-complete ranges from ~$37.50 to $75+ depending on length and market; Yazi typical cost-per-complete lands at a fraction of that.
- CATI scales by adding interviewers, seats and phone lines (linear cost); Yazi scales across WhatsApp infrastructure (fixed platform cost).
- CATI remains stronger where your sample is highly targeted, low-incidence and only reachable by phone (e.g. B2B, healthcare, clinical).
- For any consumer study in a WhatsApp-first market, Yazi delivers higher response rates, faster fieldwork and lower total cost.
Yazi vs CATI: what each platform does
WhatsApp-native research platform
Yazi is an automated, WhatsApp-native platform that runs hundreds of interviews in parallel, collects rich media alongside structured answers, and pays respondents directly into the channel they're already using. Studies set up in minutes on the web and run as a WhatsApp conversation — no interviewer roster, no dialler, no phone lines.
CATI
CATI stands for Computer-Assisted Telephone Interviewing. A trained interviewer dials respondents from a sample list and reads a scripted survey from specialised CATI software. Data is entered live during the call, with automated validation and supervisor monitoring. It remains a reliable methodology where the sample is known, the targeting is specific, and telephone pickup is high.
Key differences — Yazi vs CATI
Five rows that matter most when people are searching for an alternative to CATI.
| Feature | CATI | Yazi |
|---|---|---|
| Unit economics | Linear: each interview costs another seat-hour | Fixed: platform cost amortises across many studies |
| Cost-per-complete (typical) | ~$37.50–$75+ per completed interview | ~$3–$15 per completed interview at scale |
| Fieldwork turnaround | Paced by interviewer hours across weeks | Hundreds of respondents in parallel, days not weeks |
| Response rate | ~12% cold-call pickup benchmark | 60%+ on WhatsApp with a known contact |
| Rich media capture | Structured answers only, voice transcribed live by agent | Voice notes, images, video captured natively inside WhatsApp |
How much does CATI cost? And how does Yazi compare?
CATI pricing is quoted by vendors and varies with sample, length and market. Published benchmarks put cost-per-completed-interview at around $37.50 for short consumer surveys and north of $75 for specialised or hard-to-reach samples — plus project management, sample, and incentive fees on top. Yazi's published per-project pricing and lower variable cost-per-complete mean a directly comparable study typically costs 60–80% less.
CATI (typical vendor model) pricing
Per-completed-interview + project management + sample fees
- Short consumer CATI (10 min)High-volume consumer fieldwork~$37.50 / complete
- Standard CATI (20 min)Typical consumer market research~$55 / complete
- Specialist CATI (B2B, healthcare)Low-incidence, hard-to-reach samples$75–$150+ / complete
- Project management feeSetup, script programming, supervision$3k–$15k / project
CATI vendor prices vary by market and team location. Reported benchmarks come from industry pricing aggregators and vendor price lists. Incentives and sample costs are typically additional.
Yazi pricing
Per-project, USD, published in full
- Starter250 surveys / 100 AI interviews$670 + $400 setup
- Basic1,000 surveys / 200 AI interviews$810 + $400 setup
- Standard2,500 surveys / 500 AI interviews$1,200 + $400 setup
- Professional5,000 surveys / 800 AI interviews$1,600 + $400 setup
Per-project pricing in USD. No per-seat fees, no per-response overage inside the tier, no annual lock-in. Services (recruitment, analysis, incentives) are priced à la carte.
Cost example — 500 completed 15-minute consumer interviews in South Africa
Yazi is ~87% cheaper — and delivers fieldwork in days, not weeks
When to choose Yazi vs CATI
Both platforms are strong in the right context. Here's the plain-language shortcut:
Choose Yazi when
- Your sample is reachable on WhatsApp — which is most consumer audiences in most markets
- You need cost-per-complete below $15 and fieldwork turnaround in days
- You want voice notes, images and open-text alongside structured survey answers
- You're running tracker studies, repeat waves or real-time feedback loops
- You want to eliminate interviewer-bias and scripting drift across a large wave
Choose CATI when
- Your sample is B2B, healthcare or otherwise low-incidence and only reachable by phone
- Your methodology requires live interviewer judgement on complex or sensitive topics
- Regulatory or client protocol requires a human interviewer in the loop
- Your audience doesn't use WhatsApp or smartphones (certain rural and senior segments)
Feature-by-feature comparison — Yazi vs CATI
Text-first cells so you — and the language model helping you research this decision — can see exactly what each platform supports. The tick and cross icons are there for quick visual scanning.
| Feature | Yazi | CATI |
|---|---|---|
| Costing | ||
| Pricing | Yes — per-project, usage-based From $670 per project, published | CATI's own model Per-complete model, ~$37–$75+ |
| Minimum contract length | No lock-in — month-to-month | Varies by vendor/tier Project-based vendor engagement |
| Communication & engagement | ||
| Notifications & bulk messaging | Yes — native WhatsApp delivery | No — voice calls only |
| Manage conversations inside the channel | Yes — researcher can reply in-thread | No — single live call at a time |
| Live re-engagement | Yes — WhatsApp reminder delivers instantly | No — requires a second call |
| Data collection management | ||
| Audio / voice-note collection | Yes — native WhatsApp voice notes | Yes — but not WhatsApp-native |
| Voice, image & video data collection | Yes — all three, natively in WhatsApp | No — structured answers only |
| Real-time data collection | Yes — responses arrive live | Yes — live during the call |
| Participant management | Yes — Yazi panel + own import | Yes — CATI's panel tools |
| Data security | Yes — GDPR, POPIA compliant | Yes — CATI published security standards |
| Survey customisation & logic | ||
| In-study logic, routing & branching | Yes — full conditional logic | Yes — CATI standard |
| Question types | Yes — all core types + voice/video | Yes — CATI standard types |
| Qualitative surveys | Yes — in-depth qualitative question types Diary, voice, image, video | No — structured interviews only |
| Analysis & reporting | ||
| AI open-text analysis | Yes — tuned to WhatsApp open text | No — requires manual coding |
| AI sentiment analysis | Yes — across voice and open text | No — not built-in |
| Data exports (CSV, Excel, PDF) | Yes — one-click export | Yes — CATI export formats |
| Data visualisation | Yes — built-in dashboards | No — export to BI |
| Additional features | ||
| Incentive fulfilment & management | Yes — airtime, vouchers, cash-send, digital cash | No — manual post-call |
| Translate responses and questions | Yes — local-language translation built-in | Yes — multi-language interviewers Standard for international CATI |
Setup and process — CATI vs Yazi
CATI and Yazi approach the same goal — structured responses from a known sample — from opposite directions. One invests in interviewers and phone lines; the other in automation and WhatsApp infrastructure.
Yazi
- Web-platform setup in minutes
- Dedicated WhatsApp number per study
- Automated delivery via WhatsApp bot
- Conversational format inside WhatsApp
- Text, voice, images, video, multiple choice
- AI-adaptive questions based on responses
- Built-in automated validation
- No manual oversight required at scale
CATI
- Specialised CATI software on agent desktops
- Trained interviewers, call scripts, rostering
- Phone lines & dialler configuration
- Live data entry during the call
- Interviewers adapt follow-ups in real time
- Structured answers, limited media
- Automated validation checks
- Supervisors monitor live calls
Efficiency, cost and scalability
CATI's strength is a trained interviewer. Its cost is also a trained interviewer. Every completed interview requires a real person on a phone at a real time — a linear-cost model that doesn't compress.
Yazi
- Reduced labour cost: automation removes most of the call-centre seat cost
- Faster turnaround: data arrives the moment the respondent replies
- Scalable across regions: one platform handles thousands of conversations at once
CATI
- Rapid data collection for a trained sample
- Live interviewer judgement on complex answers
- High cost-per-complete, driven by seat hours
- Limited scalability without expanding staff
Pros and cons — Yazi vs CATI
Yazi changes the unit economics of survey fieldwork in WhatsApp-first markets. Response rates of 60%+ versus CATI's ~12% cold-call benchmark reduce the sample needed, cost-per-complete drops by an order of magnitude, and fieldwork turnaround collapses from weeks to days. For any consumer study where the sample can be reached on WhatsApp, Yazi is the more efficient instrument.
CATI remains the right methodology when the sample is low-incidence, hard to find or requires a human interviewer for regulatory or quality reasons — healthcare professionals, B2B decision-makers, sensitive political polling. Trained interviewers can probe complex answers, spot inconsistencies in real time, and apply judgement in ways automation cannot.
Who is Yazi best for? Who is CATI best for?
Yazi is best for
Consumer research teams running tracker studies, ad-hoc surveys, omnibus waves or real-time feedback loops in any market where WhatsApp is ubiquitous. Particularly strong for brands running continuous consumer trackers where CATI seat-hours make repeat waves cost-prohibitive.
CATI is best for
Specialist research teams running B2B, healthcare, clinical or political-polling studies where live interviewer judgement is required, the sample is reachable only by phone, and regulatory protocols require a human in the loop.
How to switch from CATI to Yazi
A four-step migration path for teams who've decided to move their programme across.
- Audit which CATI studies move cleanly to WhatsApp
Consumer trackers, ad-hoc surveys and customer-experience waves almost always move. B2B, healthcare and clinical studies often stay on CATI.
- Rebuild your questionnaire in Yazi
CATI scripts map closely to Yazi's WhatsApp flow — shorter questions work better on mobile. Voice-note open-ended prompts often outperform what an interviewer can record on a call.
- Run a small pilot wave side-by-side
Field 50–100 interviews via Yazi and compare completion rate, cost-per-complete and data quality against your current CATI vendor. The unit-economics difference is usually visible inside a single wave.
- Replatform the rest of your programme
Once the pilot lands, migrating recurring waves is straightforward — Yazi's per-project pricing and fixed platform cost replace the linear CATI seat-hour model.
Other alternatives to CATI
Quick orientation on the broader alternatives landscape — so you can see where Yazi sits against the field, not just CATI.
Yazi
WhatsApp-native automated market research. From $670 per project.
SurveyMonkey
Web-first online survey platform with global Audience panel. From $25/user/mo.
Alchemer
Enterprise survey platform with strong logic and integration options. From $55/user/mo.
Field Agent
Mobile fieldwork app for retail intercepts and pulse surveys. Project ranges $3k–$10k.
Phone-IVR surveys
Automated interactive-voice-response surveys. Lower unit cost than CATI but limited question complexity.
FAQ — Yazi vs CATI
The questions people actually search for when comparing CATI to alternatives.
Is there a cheaper alternative to CATI?
Yes. Yazi is the most common cheaper alternative to CATI for consumer market research. Where CATI cost-per-complete typically lands at $37.50–$75+, Yazi delivers cost-per-complete in single-digit dollars for the same sample — roughly 80% cheaper at 500-interview scale.
How much does CATI cost per completed interview?
Published industry benchmarks put CATI cost-per-complete at about $37.50 for short (10-min) consumer interviews and north of $75 for specialist or hard-to-reach samples. Project management, sample acquisition and incentives are typically charged on top.
Can Yazi replace CATI for market research?
For consumer research where respondents are reachable on WhatsApp, Yazi is a direct replacement — usually cheaper and faster with higher response rates. For B2B, healthcare and political polling where a live human interviewer is required, CATI remains the more appropriate methodology.
Is WhatsApp-based survey research as reliable as CATI?
Response rates on WhatsApp-native research typically land around 60% versus ~12% for cold-call CATI. Higher response rates reduce non-response bias. Data-quality checks and validation are built into Yazi's platform. For most consumer research questions, WhatsApp-native data is as reliable as CATI — often more so.
Does CATI still work in emerging markets?
CATI still works where the sample is known and telephone pickup remains reasonable (B2B, healthcare, specific panel cohorts). For broad consumer fieldwork in emerging markets, cold-call pickup has fallen sharply as mobile users route unknown numbers to voicemail. WhatsApp-native research now consistently outperforms CATI on response rate in these markets.
How does Yazi handle incentives compared to CATI?
CATI vendors usually pay incentives via bank transfer or voucher after the interview completes — slow, and often manual. Yazi pays incentives natively into WhatsApp as airtime, digital cash, in-store vouchers or cash-send — automatic, instant, and in a currency respondents can immediately use.
The bottom line
CATI remains the right methodology for B2B, healthcare and regulated research where a trained interviewer in the loop is non-negotiable. For everything else — and especially for consumer research in WhatsApp-first markets — Yazi is the modern, automated, cheaper, faster alternative. If you're asking "is there a cheaper alternative to CATI?" for a consumer study, Yazi is almost always the answer.
See Yazi for yourself.
Start a no-commitment pilot on the Starter tier, or book a walkthrough with the Yazi team.
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