Tessan: the app, the vision and the system in three months

Three months at Tessan, which equips pharmacies with telemedicine booths. As the company’s first designer, I led the rebuild of the patient app with a tech lead and two developers, around a design system, an AI assistant that does not diagnose and a product vision, the Health Hub.

Role: First designer, design lead and product owner
Period: April to July 2026
Team: A tech lead, two developers, sole designer
Scope: Patient app, design system, AI assistant, product management, vision

Summary

Context: Tessan equips pharmacies with telemedicine booths. The stake: value comes from the patient who returns, and the existing app did not contribute, with a fragmented session, double navigation and a funnel of 8 to 13 screens. The goal: a first version centered on the consultation, ready to submit to the stores before July 15.
My role: The company’s first and only designer. Design lead and product owner of the patient app, with a tech lead and two developers.
Appscope, journeys, 40 screens, builds
AI assistantnon-medical framework, guardrails
Design systemtokens, components, skills
Product managementa model an AI can read
Deliverables: Patient app
iOS and Android
Consultation funnel
audit of 25 screens, reworked journey
Health Assistant
four journeys, guardrails
Health Hub vision
five prototyped concepts

30 days
from the decision to rebuild to the prepared submission: 3 builds
in two weeks, from June 26 to July 9: 3%
of health insurance entries completed: the screen is removed

The patient app

Rebuilt in native in 30 days around the consultation: a lighter funnel, an assistant that does not diagnose, three builds in two weeks.

The consultation funnel in three screens

Read the case study

Tessan OS and the Health Hub

Seven prototypes in a week to make the vision discussable, then a single app: the consultation that funds, prevention programs that retain.

Tessan OS on mobile, tablet and desktop

Read the case study

Design system and agents

A React kit aligned with Figma, a skills pack for Claude Code and a Notion index an agent can read: governance through the tool rather than the document.

Tessan-UI, the component catalog

Read the case study

What remains open

No impact metric exists when I leave: the app was not published and the store submission, prepared, was suspended. I would set up measurement before the funnel redesign, and the governance of the management system before the tool.

Victor Soussan

Lead Product Designer

Interested in working on a similar project? Let's talk.

Contact LinkedIn

Tessan: the app, the vision and the system in three months

Summary

The patient app

Tessan OS and the Health Hub

Design system and agents

What remains open

RiskOS

Toolkit

Dailymotion Partner

Tessan: the app, the vision and the system in three months

Summary

The patient app

Tessan OS and the Health Hub

Design system and agents

What remains open

Summary

The patient app

Tessan OS and the Health Hub

Design system and agents

What remains open

Keep reading

RiskOS

Toolkit

Dailymotion Partner

Summary

The patient app

Tessan OS and the Health Hub

Design system and agents

What remains open