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Otávio Bonato Portfolio

Mobile Work

This section contains projects under a Non-Disclosure Agreement. Please read and accept the terms below before proceeding.

Confidentiality Notice

The projects presented in this section are protected by Non-Disclosure Agreements. By accessing this content, you agree not to share, reproduce, or distribute any information, images, or design details shown here. This content is shared exclusively for portfolio evaluation purposes.

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Mobile App · 2026

Pryce
Price Comparison App

An app that helps people find the best value products at supermarkets. Take a photo of a shelf and get an instant ranking of the best cost-benefit options.

Duration2 months
Team1 Designer, 1 Developer
My roleUX/UI Designer
StatusFinal design phase
Mobile App UX Research UI Design Product Design Figma

Understanding how people actually shop

Before designing anything, I ran a qualitative research process with 14 users through Google Forms and individual interviews. The goal was to understand real shopping behavior, not just what people say they do.

The questions covered how people plan their shopping, whether they compare prices, how much time they spend choosing between brands, and what makes saving money difficult.

01
People do not have a structured shopping process
Most users buy when they feel a need. Planning is rare. The result is impulsive decisions and missed savings.
02
Price comparison is manual and time-consuming
Users visit multiple stores or search different websites. Several said they would compare more if there was a faster way.
03
Shopping lists are fragmented
People use WhatsApp, notes apps, and memory. None of these tools connect to prices or store availability.
04
Collaborative shopping has no dedicated solution
Coordinating purchases between friends or family happens over messages, which creates confusion and duplication.

Solving each problem directly

After aligning on the findings with the client, I started with paper wireframes to validate the core flows quickly, then moved to Figma for the final screens.

Problem
Manual price comparison takes too long
Users waste time visiting stores and searching websites to find the best price.
Solution
Shelf scanning with automatic price detection
One photo gives an instant ranking. No manual research needed.
Problem
Hard to compare different sizes and brands
Users cannot easily calculate cost per unit in their heads.
Solution
Cost-per-unit calculation built in
The app does the math automatically so the ranking is always fair.
Problem
Shopping lists are fragmented across tools
WhatsApp and notes apps have no connection to prices or stores.
Solution
Smart Lists connected to prices
One organized tool that shows the best options for everything on the list.

Starting with paper

Before opening Figma, I sketched all the core flows by hand. This step helped validate the structure and navigation logic quickly, without getting distracted by visual details. The wireframes covered the main screens: home, shelf scanning, analyzing state, product discovery, best value ranking, item detail, and smart list.

Pryce hand-drawn wireframes
Hand-drawn wireframes covering the core flows before Figma

Final design

The visual system uses a clean, bright design with a strong blue as the primary color. The interface is built around clarity and speed. The scanning flow is simple and trustworthy, and the ranking communicates value at a glance.

Pryce App Screens
Final screens shelf scanning, price ranking, smart lists, and collaborative shopping
Mobile App · 2026

Playcheck
Social Platform for Gamers

A social platform built for the gaming community. Track every game you play, write reviews, discover new titles, and connect with other gamers who share the same interests.

Duration5 months
Team1 Researcher, 2 Devs, 1 Designer
My roleDesign Lead
StatusFinal design phase
Mobile App Social Platform Design Leadership Visual Identity Design System

A community without a home

The project started from a clear gap: gamers had no dedicated space that combined game tracking, social interaction, and discovery in one place. The UX Researcher ran desk research and conducted interviews with real gamers.

01
Gamers want to remember what they played but have no good tool
Most use spreadsheets or just their memory. A personal game library was missing.
02
Discovery is hard and time-consuming
Finding a new game that matches your taste takes a lot of effort. Most people rely on YouTube or friends.
03
The social side of gaming is fragmented
Gamers want to know what their friends are playing right now, not just see a follower count.
04
Player reviews are more trusted than press reviews
But there is no focused place to read or write them. Reddit threads and Discord are too scattered.

Dark, sharp, neon

I chose a dark background with neon orange as the primary color. This was a deliberate cultural decision, not just an aesthetic one. Gamers are used to dark interfaces. From console dashboards to game UIs, dark mode reduces eye strain during long sessions and makes game cover images stand out.

The neon orange communicates energy, technology, and action. It is the color of gaming peripherals, LED setups, and competitive gaming culture. It feels native to the audience without copying any existing platform.

Every button, tag, and interaction state was designed to feel sharp and immediate. This matches the expectations of users who spend hours in fast-paced digital environments.

Playcheck App Screens
Onboarding, personalization, search, and social discovery screens

Built around real needs

Game tracking. Users log every game they have played, are playing, or want to play. A personal library that grows over time.
Reviews and ratings. Short, personal reviews that feel like a friend's opinion, not a formal critic piece.
Personalized feed. Onboarding collects platforms and favorite genres so the feed is relevant from day one.
Discovery. Recommendations based on play history and taste, not just popularity charts.
Friends and social layer. See what friends are currently playing, follow other gamers, and build a community around shared games.
Unified search. Search across games, people, and lists in one place with real-time suggestions.
App Redesign · 2026

Croissant
Coworking App Redesign

Croissant is a New York-based platform that works like Airbnb for coworking spaces. Users pay a monthly subscription and access a network of coworking locations across different cities.

ClientCroissant, NYC
My roleUX/UI Designer
DeliverableRedesigned screens for dev
App Redesign UX Audit UI Design Figma

A mature product that looked outdated

The client approached me because the existing mobile app no longer reflected the quality of the service. They did not have a specific list of things to fix. They knew the app needed to feel more current, more professional, and easier to use.

Without direct access to end users, I worked with customer support emails that the client shared. Three problems came up consistently.

01
The app was confusing to navigate
Users could not find features or understand what certain actions would do. The information architecture was unclear.
02
The app was slow and crashed frequently
This created frustration at the worst moment: during the booking process.
03
Too many steps to book or subscribe
The process felt long and unclear. Users gave up before completing it.

What I found beyond user reports

I conducted a full heuristic evaluation of the existing app. The problems I found went deeper than what users had reported.

Inconsistent spacing throughout the interface created a feeling of disorder and low quality
Poor visual hierarchy made it hard to know what to look at first on each screen
The visual style was several years behind current mobile design standards
The overall experience did not match the seniority and professionalism of the Croissant brand

Clarity, consistency, and trust

Navigation
Simplified core structure
The main navigation was rebuilt so the most important actions are immediately visible and reachable.
Booking flow
Fewer steps, clearer progress
Reduced the number of steps to book a space and subscribe. Each step now has a clear purpose.
Visual hierarchy
Important information first
Every screen was rebuilt so users always know what to look at first and what action to take.
Visual identity
Updated to current standards
Spacing, typography, and color were brought up to current mobile design standards while keeping the brand intact.
Croissant App Redesign
Old version vs new version in dark and light mode

Testing with the team

I ran usability tests with people from within the Croissant team. The feedback confirmed the new version was clearer, easier to navigate, and felt more aligned with what the brand represents today.

The deliverable was a complete set of redesigned screens in Figma, ready for an external developer to implement.

Mobile + Web App · 2026

Taagyo
AI-Powered Social Platform

A social platform that uses artificial intelligence to improve how people connect and discover each other. Currently in active development.

Team1 Researcher, 2 Devs, 1 Designer
My roleUX/UI Designer
StatusMobile in progress
Mobile App Web Platform AI Features Design System Visual Identity

Young, minimal, and alive

The project went through many rounds of meetings and brainstorming before the visual direction was defined. The goal from the start was to create something that felt young and modern without being loud, and minimal without feeling cold.

The team explored multiple directions. The final identity came from finding the balance between a clean editorial aesthetic and something that still felt human and social. The result is an interface that lives mostly in white space and typography, with moments of personality that make it feel alive.

Taagyo App Screens
Onboarding, profile creation, intelligent search, and community discovery

Built from the ground up, with logic

One of the most significant parts of my work on Taagyo was building the design system from scratch. This was not just a component library. It was a full system with logic behind every decision.

I created a complete variables map covering colors, typography sizes, border radius, shadows, and spacing. The color system was structured in named scales, making it consistent across components and ready for both light and dark mode.

Every component was built with variants, interactive states, toggles, and nested options inside Figma. Buttons, forms, search bars, cards, tabs, and toast notifications all follow the same logic.

This means any new screen can be assembled quickly and stay visually consistent with everything already built. It also makes handoff to developers more efficient. Variable names map directly to what gets implemented, reducing the chance of misinterpretation.

Taagyo Design System
Color variables and design tokens. Full system built in Figma.

Desktop done, mobile in progress

The desktop version is complete and has been handed off to development. I am currently working on the mobile version, adapting the same design system and visual identity to smaller screens and touch interactions.

The project will move fully into development once the mobile design is finalized and validated.