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Case study · engineering

Saving Time App

Consulting sessions that document themselves.

Zero Manual Reporting

Context & Constraints

Consulting work lives in conversations: meetings, sessions, calls. But what reaches clients is often fragmented, delayed, or inconsistently documented.

Consultants faced manual time tracking, inconsistent documentation, and limited client visibility into progress. This created unnecessary administrative overhead and reduced transparency.

Architecture

A mobile-first consulting support app based on 'capture once, reuse everywhere'. Consultants track time and record audio notes directly in the app. Audio is automatically transcribed and summarized using AI to generate a standardized session report (changes made, time spent, next steps). It follows an offline-first architecture for reliability.

My Role

Designed the end-to-end workflow, implemented AI-assisted transcription and structured summarization, and built the mobile application architecture and local persistence layer.

Results & Validation

Offline-first mobile architecture

Auto-transcription & structured summarization

Automated client-facing report generation

Eliminated 100% of manual reporting. Value in consulting is often lost in the gap between doing and documenting. By automating the capture layer, we recovered billable focus and ensured zero information loss.

Stack

React NativeOpenAI APISQLite

Building something where reliability matters?

I design, ship and operate systems like this one.

Let's talk

Building GenAI where reliability matters? Let's talk.

leonardo@leonardosa.pro

Madrid, Spain · from August 2026 · English / French / Portuguese / Spanish

© 2026 Leonardo Costa de Sá