I review your product, designs, and analytics for friction, gaps, and untested assumptionsI review your product, designs, and analytics, and rank what to fix firstI review your product, designs, and analytics, and rank what to fix first
Test (1-4 weeks)Iterate (1-2 weeks)Iterate (1-2 weeks)
I run interviews, usability studies, experiments, or usage analysis, whichever fits your stageYour team makes the top fixes, and I review each buildYour team makes the top fixes, and I review each build
I lead readouts, workshops, and strategy sessions, each tied to a decision we need to makeI test the changes with the people you're building for, measure the results, and walk your team through the findingsI test the changes with the people you're building for and measure the results
IteratePrioritizePrioritize (1-2 weeks)
We pick the next priority, and I measure what the last change didWe choose what’s next based on the team’s roadmap and what the tests showedI lead a readout or workshop on what we found, and we pick the next priority
Client projects
BeforeAfter
1Tap a number to see what changed and why
Homeowner dashboard · UI designs by the HouseFacts team
Tap a number on the After side to see what changed and why.
The desire paths we found
Supported the iOS launch and the first B2B dealsEmbedded UX, research, & product strategy through app launch and a pivot to B2BEmbedded UX, research, & content design
UX & product lead across the app, research, and messaging
Results
Redesigned onboarding and a simpler core app
Rebuilt the marketing site with the team
Wrote the new tagline, chosen in a 50-person study of five options
Ran eight rounds of usability testing on the web platform, on desktop and mobile
Wrote the new tagline, chosen in a 50-person study of five options
Owned the in-app, messaging, and notification copy
Work
Embedded UX research & product partner, with UI designs by the HouseFacts team
Results
Conducted eight rounds of usability testing on their web platform, on desktop and mobile, plus a 50-person messaging study
Hired their lead product designer and consulted on the design of signup, onboarding, the product tour, and the main dashboard
Supported their iOS app launch with App Store, in-app, and onboarding copy. Also reviewed and rewrote every notification across web, push, and email
"You're my go-to person when I need someone to run things by. You're so in tune with the end user."
"Karl's research helps us figure out what to prioritize and who to prioritize. At an early-stage startup there are endless priorities and limited resources, and his research is the foundation for deciding what we do next."
BeforeProposed
Home page redesign · My UI designs in Figma
The desire paths we found
A home page that shows products on the first screenEvaluated the whole store and redesigned every core pageOnline store evaluation & redesignOnline store analytics, evaluation, & redesign
Reviewed the store and its traffic data, ranked the fixes, and reviewed each build
Results
Redesigned the home page to show categories and products above the fold
Added a simple mobile menu for shoppers coming from social media
Created a search-by-intent scheme for categories like “birthday” or “gifts under $25”
Work
Designer: analytics, evaluation, competitive analysis, and my redesign in Figma
Results
Analyzed the store’s traffic, advertising, and checkout data, and evaluated the entire UX
Redesigned the home page, mobile menu, and category structure in Figma
The store is shipping the redesign in stages
"Karl reviewed the whole site as a first-time shopper would and gave me a prioritized list I could build myself in Shopify. I made quite a few updates based on his recommendations ahead of the holidays."
BeforeAfter
Desktop app landing page · UI designs by the CustodyComms team
The desire paths we found
Launched on desktop and iOS, with paying subscribersEvaluated the app, site, and brand before and after launchProduct evaluation & brand direction
Find it, then fix itI find what’s in the way, rank the fixes, and review each build while your team makes them
The experience starts with your messagingEvery review covers how you describe the product in ads, on your site, and in the app, since that sets what people expect before they sign up
Review before researchI look at your messaging, site, product, and analytics first, so any research goes to the biggest open question