Control that converts: how device management protected Jusbrasil's revenue and boosted profits by ~20%
- Company
- Jusbrasil
- Role
- Product Designer
- Year
- 2025
- Status
- Experiment
- Team
- Product Managers, Engineers, Business Strategists
The problem
Over 80% of paying users accessed their accounts from more than two devices, and that usage correlated directly with page views. The challenge was distinguishing legitimate multi-device access from unauthorized account sharing — without losing revenue or trust.
The solution
I designed a three-part system: device switching limits (one new device per month, beyond which the account is blocked), self-service seat purchasing to unlock additional access, and an admin seat-management interface for assigning users.
Process
- 01
Behavioral analysis
Examined device-switching frequency and session overlap patterns to understand real usage.
- 02
User research
Interviews revealed sharing stemmed mostly from convenience, not malicious intent — which shaped a softer, conversion-oriented approach.
- 03
Iteration
Tested high-fidelity prototypes focused on messaging and user flows, then refined with stakeholder feedback before A/B testing.
Results
- +20%
- revenue increase
- +50%
- shared accounts blocked