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How Ipsos Replaced Four Channels with One - and Got Better Data

How Yazi's WhatsApp solution and AI Interviewer replaced Ipsos's fragmented data collection - boosting engagement and capturing richer consumer insights via voice notes.

Ipsos — Yazi Case Study
YAZI CASE STUDY

How Ipsos streamlined fast food research with Yazi's WhatsApp solution and AI Interviewer — replacing fragmented data collection methods with a single, high-engagement platform that yielded richer consumer insights and improved participant responsiveness.

1 Platform
Replaced apps, SMS, email
& direct calls
Voice + Text
Rich qualitative data via
voice notes & chat
Higher
Engagement & response
rates vs. legacy methods
Client
Ipsos
Industry
Market Research
Location
South Africa
Specialty
Consumer end-point research

Project Overview

Ipsos is one of the world's largest market research firms, operating across dozens of countries. For this project, Ipsos South Africa partnered with Yazi on behalf of a major fast food chain to explore consumer preferences and behaviours in the South African fast food sector.

The study aimed to go beyond surface-level quantitative data — uncovering the qualitative stories behind consumer choices: why people pick certain brands, what drives their spending habits, and when they're most likely to buy. Yazi's AI Interviewer, deployed via WhatsApp, gave Ipsos a single, familiar platform to collect that depth of insight at scale.

The Challenge

Before adopting Yazi, Ipsos relied on a patchwork of data collection tools — proprietary apps, SMS, emails, and direct calls. The fragmentation created friction at every stage of the research process.

Fragmented Channels

Data arrived via proprietary apps, SMS, email, and phone calls — making it difficult to centralise, compare, or act on findings in a unified way.

Low Engagement

Response rates suffered across channels. Participants dropped off or gave thin answers, making it hard to gather consistent, detailed data across a diverse consumer base.

Shallow Qualitative Depth

Traditional survey formats captured what consumers did — but rarely why. The tools in use weren't designed to probe, follow up, or invite storytelling.

Retention Difficulties

Keeping participants engaged across multiple touchpoints was a challenge — especially when each channel demanded a different behaviour from the respondent.

Before Yazi, Ipsos's data collection was spread across four different channels — each with its own drop-off problem. The result: inconsistent data quality and limited qualitative depth on the questions that mattered most.

The Solution

Yazi replaced Ipsos's fragmented toolkit with a single, streamlined data collection platform built on WhatsApp — the messaging app South African consumers already use every day. The AI Interviewer dynamically adapted its questions based on each participant's responses, creating personalised, conversational interviews that felt natural rather than transactional.

How the study ran

Consumers were invited via WhatsApp. The AI Interviewer guided each participant through a personalised line of questioning — adapting based on their favourite brands, spending habits, and fast food consumption patterns. Participants could respond with voice notes or text, on their own schedule.

STEP 1 Invite via WhatsApp STEP 2 Dynamic AI interview STEP 3 Voice & text responses STEP 4 Auto-transcribe & analyse STEP 5 Insights to client
Dynamic AI probing Personalised question paths Voice note responses Auto-transcription WhatsApp-native Centralised data

Key solution components

Centralised Communication

  • All data collection moved to WhatsApp — a platform widely used in South Africa with a familiar, low-friction interface
  • Response rates and engagement improved significantly compared to the previous multi-channel approach

Dynamic AI-Driven Interviews

  • The AI Interviewer adapted its line of questioning based on each consumer's previous responses and fast food habits
  • This flexibility generated personalised insights and detailed consumer stories that static surveys couldn't capture
Rich data from voice notes: Participants frequently sent voice notes exceeding one minute in length — including personal anecdotes and detailed perceptions that enriched the data with qualitative depth far beyond what text-only surveys could achieve.

The participant experience

Consumers received an invitation via WhatsApp, tapped to start, and answered a dynamically personalised interview in the chat interface they already use every day — responding with voice notes or text, at their own pace.

Results

Enhanced Insights and Operational Efficiency

By moving data collection to a single WhatsApp-based platform with an AI Interviewer, Ipsos collected higher-quality, more actionable data — with greater participant engagement than any of their previous channels achieved individually.

What participants delivered

  • Voice notes with personal anecdotes, detailed brand perceptions, and emotional reasoning — often exceeding one minute in length
  • A wide array of insights on brand loyalty, taste preferences, and the impact of promotions and price points on buying decisions
  • Sustained engagement driven by WhatsApp's familiar, conversational interface

What Ipsos gained

  • High-quality, actionable data with nuanced understanding of consumer behaviours — not just what they did, but why
  • Higher participation and response rates compared to the fragmented multi-channel approach
  • Operational efficiency: one platform replaced four, reducing logistics, cost, and turnaround time

Key consumer findings

The data collected via Yazi revealed clear patterns in fast food consumer behaviour — the kind of layered insight that Ipsos's previous multi-channel approach struggled to surface.

Most Popular Days for Fast Food Purchases Driven by weekend leisure activities and family time Friday High Saturday High Sunday Moderate Weekdays Lower
Buying patterns: Fridays and Saturdays are the most popular days for fast food purchases, driven by weekend leisure and family time. The AI Interviewer's probing captured the emotional and social context behind these patterns — not just the frequency.

Top Influencing Factors

  • Taste & quality — the dominant factor across segments
  • Affordability — a close second, especially for weekday purchases
  • Convenience — driven by location and speed of service
  • Promotions — a significant swing factor, particularly on weekends

Voice Note Highlights

  • A compilation of voice notes was transformed into a video reel showcasing real consumer voices
  • Participants shared personal stories about what draws them to specific fast food options
  • Direct testimonies gave Ipsos's end client compelling, authentic evidence for strategy decisions

Inside the Yazi platform

Ipsos accessed the study through the Yazi dashboard — a live completions tracker, full interview transcripts with auto-transcribed voice notes, and the underlying response data, all in one place.

Interview Transcripts Completions Tracker Table Data Media Library Study · Fast Food Consumer Research
Participant 01
Participant 02
Participant 03
Participant 04
Participant 05
Participant 06
Participant 07
Participant 08
Interviewer
Tell me about the last time you bought fast food — what did you get, and why did you choose that place?
Voice note response
[Voice-note response transcribed and stored alongside the original audio for later review.]
AI follow-up
You mentioned taste was the main reason — does that hold true on weekdays too, or do other factors take over?
Text response
[Participant's probed answer, captured verbatim.]
Auto summary
Each transcript is paired with a short auto-summary so the research team can triage at a glance before reading in full.

Before vs. After

Fragmented Multi-Channel Yazi AI Interviewer on WhatsApp
Data collectionApps, SMS, email & phone callsSingle WhatsApp platform
EngagementLow response rates, high drop-offHigher participation via familiar interface
Qualitative depthShallow, survey-style answersRich voice notes & dynamic probing
PersonalisationStatic questionnaire for allAI adapts questions per respondent
Response formatText-only, structured fieldsVoice & text, auto-transcribed
Operational complexityFour tools to manage and reconcileOne centralised platform

Why Yazi Made the Difference

For Ipsos

A streamlined, efficient, and highly engaging data collection platform that replaced four fragmented channels. The AI Interviewer's ability to probe and collect layered insights transformed quantitative data points into comprehensive consumer narratives — delivering richer data with less operational overhead.

For their end client

Faster, deeper consumer intelligence on the fast food market. Voice-note testimonies gave the brand team authentic, first-person evidence of what drives purchasing decisions — from taste and quality to the emotional pull of weekend family meals. Actionable insight, not just survey data.

Yazi really simplified data collection for us, increased our engagement, increased our response rate, and gave us an overall better platform to collect quality data for our clients. Through using the tool, we can see Yazi being leveraged in other research activities such as price collection through OCR, customer satisfaction, customer experience, and mystery shopping.

Jon-Jon Emary — Service Line Lead, Channel Performance at Ipsos South Africa

Conclusion

The Ipsos partnership demonstrated what happens when a global research firm replaces fragmented data collection with a single, AI-powered platform on the channel consumers already trust. By meeting participants on WhatsApp, dynamically tailoring questions, and capturing rich voice-note responses, Yazi gave Ipsos deeper, more actionable consumer insights — while simplifying the operational logistics of the study.

Going forward, Ipsos plans to expand the use of Yazi's technology across different research activities — from price collection through OCR, to customer satisfaction, customer experience, and mystery shopping. For research firms whose competitive advantage depends on data quality and participant engagement, the lesson is clear: the right platform can turn a fragmented process into a strategic asset.

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