TwinMind: A Second Brain That Feels Alive
Simplifying user flows and interactions for faster note capture and real-time AI insights
Overview
TwinMind is a note-taking app that acts like your second brain. It helps capture audio, turn it into text and get real-time AI insights. However, the current app design felt outdated and did not fully reflect the power and quality of an AI-native product.
This case study focuses on giving the app a more friendly and trustworthy visual style, and simplifying the “Capture Notes” flow to keep it distraction-free. The goal was to help users focus on their thoughts, with clearer microcopy that makes each step feel natural.
Finding Friction in App's Core Flow
While I was recording a note about a design challenge I clicked “Tap to get answer” to see what it showed. The app surprised me by accurately predicting what I needed and generated a detailed plan for the design challenge.
At the same time, a few moments felt unclear. It wasn’t always obvious when or why suggestions appeared, or what actions like “Tap to get answer” would actually do until I tried them. These small points of friction made the experience feel less intuitive than it could be.

Why this problem matters?
The “Capture Notes” flow is the core of TwinMind’s experience. It’s where users interact with AI in real time and rely on it for proactive suggestions, accurate transcripts, and clear summaries. Improving this flow reduces confusion and allows users to stay focused on their thoughts instead of figuring out how the app works.
A New TwinMind
I redesigned the app with warm tones and softer edges to feel friendly and trustworthy. The top navigation is now more flexible and a single timeline lets users easily filter between chats and audio recordings.
Reimagined Capture Notes
I added a bottom sheet for recording and renamed the “Notes” tab to “Summary” for clarity. Users can swipe down to close it, and “Ask TwinMind” works while recording continues in the background.
Some Finer Interaction Details
Slide-to-delete interaction for notes and chats, replacing the unclear long-press gesture.
New contextual menu for notes includes edit title, share summary, copy transcript and delete note.
My Account section is now a bottom drawer with Manage Account, App Settings & Preferences.
Reflection
With more time, I would refine edge cases and more interactions not included in this version. This includes handling no-audio scenarios, designing empty states for summaries, suggestions and transcripts, and improving the experience when users swipe down the recording overlay mid-capture.
Future improvements could include a short countdown before recording, micro-animations, and actionable AI suggestions. These details would make TwinMind feel more responsive and alive—like a true second brain that thinks and reacts alongside the user.
made with love and care,
~ a loyal TwinMind user
Other work


