Find where users struggle. Fix what matters first.
Tess, Decode's usability testing agent, watches people complete your tasks, measures where they look and hesitate, and ranks the fixes worth making first.
New users drop off during onboarding. Find where and why.
Gaze goes to the “Resend code” link instead of the code field. 8 of 30 gave up here.
Linked to the evidenceTrusted by 150+ brands, including
- Amazon
- HSBC
- KFC
- Accenture
- P&G
- TikTok
- Danone
- LEGO
- ICICI Bank
- The Walt Disney Company
- Airtel
- GCash
- Mondelēz International
- Cipla
- Philip Morris International
- Grab
- Disney+ Hotstar
- Aditya Birla Group
- Haleon
- BPI
- Kellogg's
- IDFC First Bank
- Apollo Tyres
- Duroflex
One question, followed end to end.
Scroll to follow the study from your question to the findings, or choose a step.
TessUsability testingReal participants. With consent.Fix email verification first.
New users look for the code in the wrong place, and confusion peaks just before they give up.
Illustrative workflow and sample data · scroll to explore, or choose a step
Watch Tess work. Real people, real signals.
Finds where users struggle while completing tasks, and ranks the fixes worth making first.
Sample session: gaze path, hesitation and emotion, read while the task happens.
Three answers, each with its evidence.
What Tess tells you, and the evidence behind each answer.
Where people get stuck
Task success, time on task and the exact step where people hesitate or give up.
Why they get stuck
Gaze paths and facial coding show what people looked at, and how they felt, at each friction point.
What to fix first
Issues ranked by impact, each with a clip of the moment it happened.
The right method. A clearer next step.
- The method
- Usability testingTask-based usability test, moderated or unmoderated, with webcam eye tracking and facial coding.
- Who takes part
- Your own panel or participant pool, or the Audience Marketplace.
- What Tess needs
- A prototype or live URL, plus the tasks you want users to attempt.
- Ranked usability issues
- Task success and time on task
- Gaze paths and hesitation at each friction point
- Clips of each moment
From your question to an answer you can act on.
Scroll to follow the study, or pick a step
New users drop off during onboarding.
Tess picked it up · Usability testingSee what you get back.
A sample output from Tess. Every finding links to its evidence, and you can ask a follow-up.
TessUsability testingFix email verification first.
New users look for the code in the wrong place, and confusion peaks just before they give up.
Start with the verification screen. Move the code field above the fold and make “Resend code” a quieter text link. That addresses the step where 27% gave up.
The code field is missed
Gaze goes to the “Resend code” link instead of the code field. 8 of 30 gave up here.
Clip 0:14The free plan is hidden in the plan picker
Most users scroll past it, and time on task doubles on this step.
Clip 0:09“Skip” reads as “Cancel”
Some users skip setup by mistake, then come back confused.
A specialist. With a team behind them.
Combine agents in one study by asking a lead agent.
IraInformation architecture
Tests whether people can find what they need, and proposes a structure that matches how they think.
Meet Ira
JoUser journeys
Maps the digital product experience end to end, to find pain points, unmet needs and where to invest next.
Meet Jo
ColeConcept validation
Compares early product and feature concepts to show what users understand, value and prefer.
Meet ColeA prototype or live URL, plus the tasks you want users to attempt. Tess drafts the study from there.
Bring a flow that's losing users. Let Tess take it from here.
Ask Tess and get a usability study back, with gaze, hesitation and a clip for every issue.