Reference table
Eight voice survey tools compared
All eight run AI-moderated voice interviews. They differ in what else fits in one study.
A comparison of eight voice survey platforms in 2026: Koji, Listen Labs, Strella, Outset, Conveo, Glaut, Perspective AI and TheySaid. Each runs AI-moderated voice interviews; the table shows what each is best for and whether it mixes structured and open questions in one study. Prices are left off because they change. Koji supports six structured question types alongside open-ended probing.
Where this appears
What's in this reference table
| Tool | Best for | Structured + open questions |
|---|---|---|
| Koji | All-round research depth at scale | Yes, 6 question types |
| Listen Labs | Enterprise market research | Partial |
| Strella | Consumer research with a panel | Limited, no text mode |
| Outset | Video interview deliverables | Partial |
| Conveo | Conversational qualitative depth | Partial |
| Glaut | Fast open-ended studies | Limited |
| Perspective AI | Multi-channel voice of customer | Partial |
| TheySaid | CX feedback surveys | Limited |
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<a href="https://www.koji.so/visuals/voice-survey-software-comparison-table"><img src="https://www.koji.so/visuals/voice-survey-software-comparison-table/voice-survey-software-comparison-table.png" alt="Table comparing eight voice survey tools by what each is best for and how well it mixes structured and open questions, with Koji supporting six types." width="1200" height="782" /></a>
<p>Source: <a href="https://www.koji.so/visuals/voice-survey-software-comparison-table">Eight voice survey tools compared</a>, Koji</p>
