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Peptalk Wellbeing App

Lead UX/UI Design Consultant • Sidero • Oct 2022–Aug 2023

UX Design UI Design Design Systems Prototyping Usability Testing
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Challenge

The existing Peptalk app suffered from slow load times, outdated UI patterns and poor information architecture that hindered user engagement and retention.

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Solution

Complete UX/UI redesign with a modern design system, streamlined navigation and performance-optimised components backed by comprehensive user research.

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Impact

Delivered measurable improvements across key metrics including 50% faster load times, 15% higher retention and 25% increase in user check-ins.

Key Results

Load Time

speed
–50%

Retention

refresh
+15%

Session Duration

timer
+12%

Check-In Engagement

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+25%

My Role & Approach

As Lead UX/UI Design Consultant, I worked closely with Sidero's product team to reimagine the Peptalk experience from the ground up, combining strategic thinking with hands-on design execution.

  • ✔ Audit & Research: Heuristic evaluation and user interviews
  • ✔ IA & Wireframes: Restructured navigation and flows
  • ✔ Design System: Built scalable component library
  • ✔ Testing: Iterative usability testing with real users
  • ✔ Handoff: Detailed specs and developer collaboration

Design Process

1
Research
2
IA
3
Design System
4
Prototype
5
Test
6
Deliver

10 months of collaborative design work, including 15+ usability tests, 200+ components designed and 3 major iterations based on user feedback.

Marlon worked with the Sidero team for nearly a year and I found him to be very creative and diligent in his work. He worked on a number of projects including the redesign of the PepTalk app for one of Sidero’s customers. Subsequently, he assisted the customer in structuring their brand guidelines correctly to allow them to move forward with future iterations of their projects.

David Dolan • Chief Operating Officer • Sidero

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