Karthik Mahadevan

passionate about designing tools that empower people

Envision

My life's work: a decade of building assistive AI, as apps and as glasses, for the blind and low-vision community.

Envision App

An app that speaks out the visual world.

750,000+ users

Envision Glasses

AI glasses for the blind and low-vision.

5,000+ pairs sold

Ally App

An accessibility-first AI assistant.

100,000+ users

Ally Glasses

Smart glasses with Ally built in.

1,500+ pairs sold

Projects

Everything else I build: quick apps, experiments, and student work.

Lucky Dangle

A lucky charm for your Mac.

Vigil

A secure camera app.

Excelscope

A smart microscope for rural healthcare.

MinimalPro

An elegantly minimal vacuum cleaner.

Onky

A soft toy that checks vitals.

All projects →