Both run card sorts and tree tests. UXtweak is a broad UX testing suite; SortedResearch goes deeper on structure and priority, and checks every response for you. Every claim about UXtweak below links to its own pages.
UXtweak sells a base Business plan and lets you add studies, seats and responses on top. Ours is one price with unlimited studies.
| Plans and participants | SortedResearch | UXtweak |
|---|---|---|
| Paid plan | $49 a month, or $490 a year | Business: $149 a month, or $1,429 a year billed annually1 |
| Studies running at once | Unlimited | 1 on Business; each extra one is $25 a month1 |
| Seats | 1 on Individual, 3 on Team ($99 a month) | 1 included; extra seats $25 a month each, up to 3 plus 1 free1 |
| Responses from your own participants | Unlimited | 350 a month by default on monthly Business; more at $10 per 1001 |
| Free option | One trial study, up to 10 participants, no card | Free plan: 15 responses a month, 1 active study, results viewable for 14 days, card sorts up to 20 cards1 |
| Recruited participants | From $5 per completed response, shown before you pay, with no minimum. Under-filled orders are refunded automatically. | Price set per order and shown when you place it. Prepaid packs: 120 participants for $1,438 a year1,3 |
| Renewal and refunds | Monthly, cancel any time | Renews automatically; payments are non-refundable2 |
Neither plan price includes recruited participants.
Both check bought participants. The difference is what happens with the people you recruit yourself, which is often most of a study.
| Quality layer | SortedResearch | UXtweak |
|---|---|---|
| Bought participants | ✓Checked automatically; rejected responses replaced and refunded | ✓Responses are double-checked, and replaced if you report them within 4 business days3 |
| Participants you recruit yourself | ✓Up to eleven automatic checks on every response, including participants you recruit yourself. | ~You filter by completion time and decide who to exclude5 |
| Speeding while it happens | ✓Asked to slow down, then the session ends. All four study types. | –Not documented |
| Sorting without reading the cards | ✓Checked on every card sort | –Not documented |
| Careless tree tests | ✓Eleven checks, including never opening a menu and the same answer on every task | ~Manual filtering5 |
“Not documented” means we could not find it on UXtweak’s website or help centre on 12 October 2026, not that it cannot exist.
UXtweak covers much more of the UX toolkit. SortedResearch covers structure and priority: how people group your ideas, whether they can find them, and which matter most.
| Method | SortedResearch | UXtweak |
|---|---|---|
| Card sorting | ✓Open, closed and hybrid; similarity matrix, dendrogram, 3D clusters | ✓Open, closed and hybrid; similarity matrix, dendrogram and more4 |
| Tree testing | ✓Findability: first clicks, paths, a confidence range per task, participant replay, Adaptive Tree | ✓Success, directness, first clicks, paths, confidence intervals4 |
| Pairwise comparison | ✓Importance and satisfaction, with an opportunity matrix | –Not found on their site6 |
| Best–Worst (MaxDiff) | ✓Ranks 20 to 30 items on a 0–100 scale with a must-have line | –Not found on their site6 |
| One study feeding the next | ✓A finished card sort becomes a pairwise, Best–Worst or Findability study in one click | –Not documented |
| AI analysis of sorts and tree tests | ✓Graham names card sort groups and writes a report for every study | –AI summaries for interviews and recordings, sold as an add-on1 |
| Prototype, first-click, five-second, preference, website and mobile app tests, surveys, session recording, interviews | –Not offered | ✓All offered7 |
We would rather you picked the right tool. UXtweak is the stronger choice if:
If your work is concepts, needs, benefits and navigation, and you want to rank what matters as well as how it is grouped, SortedResearch is built for it.
All pages read on 12 October 2026. SortedResearch facts come from our pricing page and help centre. UXtweak is a trademark of its owner. SortedResearch is not affiliated with or endorsed by UXtweak.
Try one study to see how it works. Every response is checked, and you only pay for the ones that pass.