Sampada Lele

—Designer

Trellis AI (Consumer, 0 to 1 MVP)

AI reader app for educators and students gets a redesign for engagement and delight

Trellis hero cover

Trellis is an AI reader app that helps users read, listen to, and interact with books through its AI assistant, Celeste.

Role

UX designer

Time

Oct 2023 - Dec 2023

Team

2 designers
1 founder
2 engineers

My contribution

UX and UI, collaborating with cross-functional teams, developing design roadmap, auditing

The task at hand was very clear

Founder wanted 2 critical user flows to be redesigned for optimizing engagement
and creating delight

Anchor the team. Show agency.

Trellis roadmap sheet

With a short contract and a remote startup team, deliverables can get derailed quickly. To bring structure, we maintained an evolving design roadmap in a shared sheet and used it to review priorities, align decisions, and track tasks with accountability.

I attended daily standups, alternate-day design sessions, founder feedback reviews, and weekly team share-outs with engineers.

Audit

Apple Books (Grid-heavy interface)

We studied reader apps like Apple Books and Libby to design a grid-heavy interface without overwhelming users.

Audit comparison 1
Audit comparison 2

Solution space

P0 Library - optimize for engagement

This was the first and most central experience in the user journey, which then led into audiobook playback.

Library iteration explorations

Design decisions

We explored multiple visual permutations for book stacks: vertical, horizontal, grouped, and listed. This helped us create a readable layout while reducing cognitive overload.

Library decision 1
Library decision 2

Solution space

P1 Audiobook - create delight

“Art on museum walls” was the founder’s vision. We aimed to welcome readers into the author’s world by elevating each book visually in a poetic way.

Audiobook exploration

Our exploration sampled various gradient systems, including monotone and duotone. After testing across books with dark and bright covers, we finalized a duotone treatment for dynamic contrast.

Audiobook decision

The finalized duotone gradient was approved by both founder and engineering.

Market analysis

Comparative insights from Apple Books and Libby

The competitive audit gave us reusable patterns for hierarchy, spacing, and navigation in content-dense reading interfaces while preserving a clear visual path.

Book tiles

We tested tile treatments and mixed panel arrangements to keep the library expressive while improving scanability and interaction flow.

Final outcome

Empty state screen

Empty state

Library screen

Library

Audio playback screen

Audio playback

As we headed toward the end of the contract, we were happy to deliver scope within the timeframe. These deliverables were piloted by engineers in TestFlight first.

Things that went right

1. Product roadmap was golden and anchored the team.
2. Early collaboration with engineers saved time and effort.

For future

1. Further refine typography and iconography.
2. Validate designs with user interviews to gather qualitative and quantitative insights.