Bird ID | App's redesign
Mission
Enhance the user experience of Bird ID, a cloud-based digital certificate that allows users to authenticate and sign documents directly from their smartphones.
The goal was to make the app more intuitive, visually consistent with the brand, and aligned with the web version’s features.
My Contribution
As the Product Designer responsible for the app’s redesign, I led the process from identifying key usability issues to designing the final interface and visual system.
My main contributions included:
User research and internal interviews to understand pain points.
Benchmarking of apps using real-time authentication systems.
Creation of a product style guide aligned with Bird ID’s visual identity.
Complete redesign of the interface hierarchy and user flows.
Internal usability testing and collaboration with marketing and development teams.
Results
Significant improvement in clarity and usability of the dynamic PIN, one of the most frequent user complaints.
A modern and cohesive interface, fully aligned with Bird ID’s brand identity.
App rating increased from 3.5 to 4.0 stars on the Play Store after launch.
Introduction of multi-user access, allowing users to share their digital certificate securely (e.g., with accountants).
Clear roadmap for Phase 2, including biometric authentication and advanced security flows.
Company
Soluti Certificação Digital
Type
Product Design
Year
2021
Process
The Bird ID app was already live but suffered from low engagement and negative reviews.
Through interviews with internal users and analysis of app store feedback, I identified the main usability challenges:
Lack of clarity around the 30-second PIN refresh, confusing many users.
Absence of shared access functionality for multiple users.
Visual inconsistency between the app and Bird ID’s marketing materials.
Limited visibility of key features only available on the web version, such as transaction history and certificate synchronization.
During benchmarking, I analyzed authentication apps that used dynamic security codes and identity verification flows.
Key insights adopted:
Animated color indicators to highlight the real-time PIN update.
Clear separation between the main account and additional linked users.
Strong visual emphasis on the PIN number as the central interaction element.
Outcome
The prototype prioritized clarity, information hierarchy, and brand coherence.
The home screen was redesigned to make the PIN update the focal point, while other functions — such as user management and transaction history — became easier to find.
From internal usability sessions:
The PIN refresh became clear and intuitive.
Navigation felt more fluid and aligned with the brand.
The multi-user feature was well received by participants.
During the design process, I identified that Bird ID’s brand colors — originally created for print materials — lacked contrast on screens.
After collaborating with the marketing team, I slightly increased saturation and contrast, improving readability and visual appeal. The change was later adopted across all brand materials.
Key Learnings
Alignment between marketing and product is essential to ensure consistency across all user touchpoints.
Proper time estimation is crucial, especially when designing as the sole product designer.
App store feedback is a valuable qualitative source for measuring perception and guiding product improvements.
