CardSort vs Proven by Users: Which Card Sorting Tool Fits Your Workflow?
If your primary need is card sorting and budget matters, CardSort is the better pick. If you need card sorting and tree testing in one platform, Proven by Users earns a look. These are both dedicated IA research tools, not bloated all-in-one platforms, so the comparison comes down to specific features, pricing, and what methods you actually run.
Key Takeaways
- Pricing gap: CardSort is free for unlimited studies. Proven by Users costs $90-$150/month for team plans.
- Tree testing: Proven by Users bundles tree testing with card sorting. CardSort does not offer tree testing.
- Hybrid sorting: CardSort supports hybrid card sorting (open + closed combined). Proven by Users only offers open and closed sorts separately.
- Free tier: CardSort has a genuinely usable free plan with no participant limits. Proven by Users offers a limited trial only.
- Bottom line: Two solid IA tools with different strengths. Your choice depends on whether you need tree testing or need to keep costs at zero.
Pricing Comparison
This is where the two tools diverge sharply. CardSort built its model around a free tier, while Proven by Users follows a more traditional SaaS subscription.
CardSort
- Free: Unlimited card sorts, unlimited participants
- Pro: $29/month - Advanced analytics, white labeling, CSV/JSON export
- Enterprise: Custom pricing
Proven by Users
- Free trial: Limited access, restricted participants
- Team: ~$90/month - Card sorting, tree testing, basic analytics
- Business: ~$150/month - Additional collaboration features, priority support
Verdict: CardSort saves $1,000-$1,800/year for teams that only need card sorting. Proven by Users bundles tree testing into its price, which partially justifies the cost if you use both methods.
Card Sorting Features
Both tools handle the fundamentals well. The meaningful difference is hybrid sorting on CardSort's side and tree testing on Proven by Users' side.
| Feature | CardSort | Proven by Users |
|---|---|---|
| Open card sorting | Yes | Yes |
| Closed card sorting | Yes | Yes |
| Hybrid card sorting | Yes | No |
| Tree testing | No | Yes |
| Unlimited participants (free) | Yes | No |
| Dendrograms | Yes | Yes |
| Similarity matrix | Yes | Yes |
| Real-time results | Yes | Yes |
| Mobile optimized | Yes | Yes |
What Proven by Users Offers That CardSort Doesn't
Proven by Users positions itself as an IA research suite rather than a single-method tool. The tree testing integration is the real differentiator here. Running a card sort to define your categories and then validating with a tree test in the same platform is a clean workflow.
- Tree testing - Validate navigation structures after card sorting establishes categories
- Combined IA workflow - Card sort and tree test results in one dashboard
- Team collaboration - Built-in sharing and commenting for team plans
For IA projects where you plan to run both card sorts and tree tests, having them in one tool removes the friction of exporting data and switching platforms. That said, you're paying $90+/month for that convenience.
What CardSort Offers That Proven by Users Doesn't
CardSort's standout feature is hybrid card sorting, which sits between open and closed methods. Participants get predefined categories but can also create their own. This is genuinely useful for redesign projects where you have an existing IA but want to discover what users would change.
- Hybrid card sorting - Combine predefined and participant-created categories in one study
- Truly free unlimited plan - No participant caps, no study limits, no trial expiration
- Faster setup - Purpose-built interface gets studies live in 3-5 minutes
- No account required for participants - Share a link, get responses
The free tier is not a gimmick. You can run real research with real participant volumes without paying anything. For freelancers, students, and small teams, that matters.
When to Choose Proven by Users
Pick Proven by Users if:
- You regularly run both card sorts and tree tests as part of your IA process
- Your team has budget allocated for research tooling ($90+/month)
- You value having card sort and tree test data in a single dashboard
- You're evaluating or redesigning a full navigation structure, not just running occasional sorts
Proven by Users makes the most sense for mid-size UX teams with dedicated IA responsibilities and a research tools budget. If tree testing is part of your standard methodology, paying for the integration is reasonable.
When to Choose CardSort
Pick CardSort if:
- Card sorting is your primary or only IA research method
- You need to run studies without spending anything
- Hybrid card sorting would improve your research (redesign projects especially)
- You're a freelancer, student, or small team watching costs
- You run high-volume studies with 50+ participants and don't want per-response fees
CardSort is the obvious choice for anyone who needs card sorting specifically and wants to avoid a monthly subscription. The hybrid sorting method is also a real methodological advantage that Proven by Users doesn't match.
The Honest Take
Both tools do card sorting well. Neither is broken or missing critical functionality for the core method. The decision comes down to two questions: Do you need tree testing? And do you need to keep costs at zero?
If you answered yes to tree testing, evaluate Proven by Users. If you answered yes to keeping costs low, CardSort is the straightforward pick. If you need both, consider using CardSort for card sorts (free) and finding a separate tree testing tool, which may still cost less than Proven by Users' monthly subscription.
Further Reading
- What is Card Sorting? Complete Guide
- Card Sorting (UX Glossary)
- Information Architecture (UX Glossary)
- How To Run Your First Card Sort Study
Frequently Asked Questions
Is Proven by Users or CardSort cheaper for card sorting research?
CardSort is significantly cheaper. CardSort offers unlimited card sorts and participants for free, while Proven by Users starts at roughly $90/month for team plans. For teams that only need card sorting, CardSort saves $1,000+ per year.
Does Proven by Users offer tree testing that CardSort doesn't?
Yes. Proven by Users includes integrated tree testing alongside card sorting, which CardSort does not currently offer. If you need both methods in a single platform, Proven by Users has an advantage.
Does CardSort support hybrid card sorting that Proven by Users lacks?
Yes. CardSort offers hybrid card sorting where participants can use predefined categories and create their own. Proven by Users supports open and closed card sorting but does not offer a hybrid mode.
Can I run card sorting studies for free on Proven by Users?
Proven by Users offers a limited free trial, but ongoing use requires a paid plan starting around $90/month. CardSort provides a fully free tier with unlimited studies and unlimited participants at no cost.
Which tool is better for a freelance UX researcher on a tight budget?
CardSort is the better fit for budget-conscious freelancers. The free tier covers unlimited card sorts with no participant caps. Proven by Users requires a paid subscription that may not justify the cost for occasional card sorting work.