Buz was hitting a plateau in user growth. Through user feedback on the App Store and Play Store, we identified key areas of friction that were impacting satisfaction—particularly around usability, accessibility, and the visual interface.
During the Jobs-to-be-Done workshop, we conducted an idea generation exercise and then mapped the best ideas onto an effort-impact matrix. This helped me identify solutions that could be implemented without requiring significant resources from our development team, while still having a strong impact on Buz. The next step was to gather evidence of user need for these features as part of a potential UI redesign.
To validate my ideas, I collected over 100 user reviews from the App Store. This helped demonstrate to stakeholders that there was a clear user need for the updates identified in the effort-impact matrix.
With approval for the project, I established a clear set of goals to achieve. Our success metrics included a reduction in the types of complaints mentioned above and an increase in overall user satisfaction.
Insights for the redesign were first surfaced during user testing for Hands-Free Mode, a feature I previously led. While evaluating that feature, I took the opportunity to ask participants how they felt about Buz’s overall look and feel.
I took the opportunity to talk with both people in the office as well a our current users base and perform a few rounds of A/B testing with the new test design. Below are the results of my testing.
During the process of creating Buz's Multitasking Mode, I experimented with a few new designs that served as a jumping-off point for further exploration in Buz V3.
Users consistently gravitated toward a sleek, card-based layout that felt more modern and easier to use. With these discoveries and a direction chosen, we moved on to drafting the final designs.
Once I realized from user research that users preferred a card-like design for the profile, I began testing several more radical concepts for Buz V3. This phase was meant to explore directions that could help us define what we wanted Buz V3 to become—but just as importantly, it helped me identify what I didn’t want the redesign to be.
While working on the initial designs, I found that our competitors all embraced a simple flat style, occasionally incorporating 2D illustrations.
I presented both flat and skeuomorphic design options to 20 potential users, and 85% of them said they preferred the skeuomorphic design because it felt fresh and captured their attention more effectively.
With takeaways from user research and competitive analysis, I began implementing our new skeuomorphic design. I explored several design variations before presenting the updated concepts for stakeholder approval.
This new layout grouped key information—contact images, message previews, and interaction options—into a unified component, replacing the previously scattered interface.
By applying this design direction to the landing page, we began to see cascading improvements in usability, which directly informed the next phase of the redesign.
A major source of friction in the previous version of Buz was frequent misclicks and accidental swipes, largely caused by ambiguous interaction areas.
The new card-based layout introduced a well-defined visual boundary for each contact, making it immediately clear where users could tap or swipe. This simple structural change drastically reduced misclicks, improved confidence in interactions, and streamlined the overall navigation of the app.
This redesign also opened up opportunities to better preview message content—providing more context at a glance and reducing the need to open every chat thread.
With the visual structure improved, the next step was to ensure the experience was inclusive and accessible. Several quick wins were implemented:
A wave animation was added to the push-to-talk (PTT) button, offering a subtle but effective way to communicate when the app was actively recording—enhancing both accessibility and user confidence.
These updates made the interface feel more polished, but more importantly, they ensured that Buz was usable by a broader range of people.
One of the most consistent complaints we saw in user reviews was the lack of a way to cancel a voice message once it started. Users felt hesitant or even embarrassed if they made a mistake, which discouraged them from using Buz’s core PTT feature.
To solve this without disrupting familiar workflows, I designed a slider-based cancel mechanism that worked within the PTT interaction model. Users could now swipe to cancel while recording—preserving the speed and simplicity of the PTT experience while adding a much-needed safety net.
Once I had designed solutions for these problems, I led the development process by collaborating closely with developers and conducting QA. After launch, the redesign of Buz was a success across the board:
James Hwang: CEO of Vocalbeats