03 / 07 · Case study
Trust & Value
Role
UX Researcher
Discipline
- Strategy
Context
Fintech
Year
2025
Different users needed different reasons to trust Super+. Segmenting onboarding by motivation lifted sign-up intent 50% and referral likelihood 58%.
I led usability research on Super.com's onboarding redesign, working with product design and product management over 4 months to make sure it built trust for every kind of user.
50% increase in willingness to sign up after the redesign
58% increase in referral likelihood after the redesign
10 participants per segment validating the final result
2 user segments tested separately: travel-focused and credit-building-focused
The Challenge
One flow, wildly different reasons to care
Super.com bundles hotel discounts, credit-building, and gamified earning under one premium membership, Super+. That's exactly the problem.
A user chasing cheaper hotels and a user trying to build credit are motivated by completely different value, yet the existing onboarding tried to sell both with the same generic flow. With a major app redesign underway, I was brought in to lead usability research on the new onboarding, working with product design and product management over 4 months to make sure it built trust and made Super+'s value obvious for either kind of user.


My Approach
Testing by motivation, not by feature
A single usability test wasn't going to answer this, because "does this work" depends entirely on who's asking.
I split participants into segments by their actual motivation, travel-focused vs. credit-building-focused, so I could measure how well onboarding landed for each group rather than averaging away the difference between them. I also varied scope deliberately: component-level tests isolated individual steps so the team could act on specific fixes fast, while end-to-end tests checked whether the full journey still held together and built trust across the whole flow.
The recruiting strategy evolved too. Early rounds used 6 participants per segment (enough for fast, directional feedback), and once we'd iterated, I expanded follow-up rounds to 10 per segment, because a decision this close to launch needed numbers I could actually trust.
What I Found
Segmentation was the whole answer
The research became a running feedback loop with design and product. The clearest insight: different Super+ features carried the value for different people.
A single generic pitch was underselling the app to everyone, so moving to a segmented, tailored onboarding became the fix.
Post-redesign testing confirmed it: a 50% increase in users' stated willingness to sign up, and a 58% increase in referral likelihood, compared to the original flow.
Reflection
What I'd do differently
This project taught me the difference between what a small sample tells you and why it's telling you that.
In a few early rounds, quantitative scores actually regressed for designs the team agreed were clear improvements. A single outlier, or just one harsh rater, can swing an n=6 average dramatically.
In formative research, the qualitative data is the true signal. A small sample's scores are a clue, not a benchmark.
That's why I pushed to expand the follow-up rounds to 10 per segment before trusting the quantitative lift enough to report it as a real result.