AI Contract Review Across Word, iOS and Web

Hand holding a phone showing the LegalSifter ReviewPro app's document import screen
Hand holding a phone showing the LegalSifter ReviewPro app's document import screen

Key results

Key results

• Audited four AI contract review surfaces (Word add-in, iOS app, web platform, Google Docs) and fixed login and trust issues across them • Rebuilt the iOS app from the ground up after the existing experience tested poorly with users • Designed concept flows for the AI review experience, prototyping them in Xcode and HTML so interactions and animation were resolved before development • Established a design system with color, typography, spacing and component states shared across all four surfaces

Role and timeline

Role and timeline

• Product Designer • 2026

Methods or tools

Methods or tools

I used Figma for design and prototyping, and Claude Code and Codex to build interactive Xcode and HTML prototypes ahead of development.

Overview

A multi-surface redesign of an AI-powered contract review product: Word add-in, iOS app, and web platform.

Project brief

ReviewPro uses AI to read contracts and propose edits based on playbooks it has been trained on. I led the redesign across three surfaces so the AI’s suggestions felt clear, reviewable, and worth trusting. The work covered a shared design system, a rebuilt in-document review flow for the Word add-in, and UX updates to the iOS and web experiences. A core challenge was making AI output legible within a lawyer’s existing workflow: showing why a clause was flagged, what the playbook recommends, and allowing users to accept, edit, or dismiss without losing context.

Before/after comparison of the LegalSifter mobile app: playbooks list, playbook details, and ReviewPro home screenLegalSifter app screens for selecting a document, choosing a playbook, and tracking review progressReviewPro AI assistant chat answering 'What are the main clauses of this document?'Contract review results by section, a redlined clause edit, and an empty 'no positions passed' stateReviewPro desktop dashboard showing a playbook's clause positions and NDA detailsReviewPro Assistant panel and playbook picker shown inside Microsoft WordDocument edit list, a redlined preamble clause with its rationale, and a review-in-progress screen

Brayan Angulo

©2026

Brayan Angulo

©2026

Brayan Angulo

©2026