Information-architecture research: card sorting, tree testing, first-click.
Optimal Workshop is the specialist suite for information architecture — card sorting to learn how users group concepts, tree testing to validate navigation before it is built, first-click testing and qualitative interview analysis. If your problem is that people cannot find things, this is the category-defining tool.
Best for
From $199 per month (indicative, per user)
Free tierFree tier: Free plan with limited participants per study.
What drives the bill: Annual plans reduce the effective monthly rate substantially; recruitment is separate.
Check current pricing on Optimal Workshop’s siteFigures are indicative and were last reviewed August 2026. Vendors change pricing often; confirm before you commit.
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