Nikita Kuzmin

Spren

A health app that uses body scanning to estimate body composition and help users move toward their goals.

Improved user engagement by 30% for the scan flow. Built a 360º profile overview that consolidates key health metrics. Strengthened visual consistency by refining the design system.

Scan preparation

Before scanning, the user must enter the necessary parameters. Understanding the scanning guidelines, such as positioning and lighting, is also crucial.

Previous Spren scan preparation screen
Before
Updated Spren scan preparation screen
After

Starting a scan

By displaying a person overlay on a black screen with camera access, we are already in the main scan scene, where only one action is needed to unlock it.

Previous Spren scan unlock screen
Before
Updated Spren scan unlock screen
After

Posture guidance

On this part of the scan process users tend to step back from phone and fit in the frame. There is no need to overlay the person with a solid posture example. Instead, make it half-opacity and apply a blend mode.

Previous Spren phone placement screen
Before
Updated Spren phone placement screen
After
Previous Spren posture guidance screen in an iPhone frame
Before
Updated Spren posture guidance screen in an iPhone frame
After
01

MixPanel report: Scan flow drop off

Before scanning, the user must enter the necessary parameters. Understanding the scanning guidelines, such as positioning and lighting, is also crucial. Guiding the user based on scan results is a core feature of the app.

The stakeholders asked to improve the existing scanning process, as they experienced a significant drop of during this flow.

MixPanel report showing scan flow drop off across body scan steps
02

Flow breakdown

First of all I’ve decided to break down the whole flow on segments and highlight those that need attention based on (a) metrics and (b) user feedback.

Spren onboarding flow segment with scan guidance drop off Spren camera access flow segment with drop off and updated permission guidance Spren scan process segment with body composition camera screen drop off
03

Research

Based on the problematic steps, I also conducted competitor research to compare how similar scanning apps explain setup, camera placement, and real-time guidance.

Research of similar scanning apps and body scan guidance patterns
04

Current flow review

I’ve separately examined all the steps in the scan process and highlighted any potential issues that may arise when a user interacts with the interface.

Annotated review of the current Spren setup flow Detailed annotated current Spren setup flow with extra taps Suggested Spren setup flow focusing on one key parameter at a time
05

Guide redesign

Make it smoother and easier to understand with the “do” and “do not” examples.

Annotated current Spren scan guide with skip placement concerns Redesigned Spren scan guide cards with do and do not examples
06

Flow states redesign

By displaying a person's overlay on a black screen with camera access, we're already in the main scan scene, where only one action is needed to unlock it.

We can recycle drawers with overlays in this scan scene, offering a flexible solution for various scenarios.

For instance, these could include “Camera Access” or “Volume is Too Low” notifications.

Spren camera access state redesign showing overlay and permission guidance Spren scan scene drawer pattern for camera access guidance Spren scan scene drawer pattern for low volume guidance
07

Flow alerts redesign

Also, during scanning, real-time issues may be displayed: detected problem objects, improper lighting, inappropriate clothing, etc.

Spren scan alert drawer for detected background object guidance
08

Scan process redesign

In this case, we don’t just display the message “Take a few steps back.” We also provide a frame that the user should fit into. This helps the user understand the required distance from the device on the floor.

Moreover, there’s no need to overlay the person with a non-opacity posture example. Instead, simply make it half-opacity and apply a blend mode.

Updated Spren scan distance guidance with a frame to fit into Spren posture guidance comparing solid and half-opacity overlay

Health profile

All parameters, along with their trends and warnings, are displayed below the chart in one consolidated health overview.

Spren health metrics profile overview
01

Research

The idea beyond user’s overview is to show all user’s parameters on one view: his sleep, nutrition, exercise, stress level and other parameters to have all the overview at one glance. I have started with exploring possible solutions from references.

Reference research for Spren user health profile overview
02

Concepts

The first attempt was to try put all the parameters at the same time on the Circle chart. Here it was impossible to see the data properly and a chance of mistouch is very high. So the decision was to divide parameters on huge groups. The idea was to reuse the user we see on the Scan process in our 360º view. We can remove the background using AI and show the image without any background.

Spren health profile wireframes exploring circular chart parameters Spren health profile wireframes reusing the scan user in a 360 degree view
03

Final direction

We observe both tabs, which remain fixed at the top while scrolling, and a clickable chart. All parameters, along with their trends and warnings, are displayed below the chart. This setup makes the overview visually unique and easy to use and navigate.

Final Spren health profile direction with fixed tabs, clickable chart, trends and warnings

Next project

Imagotag Web