Productivity

Echo Locker

Website

Overview

Echo is a lockscreen platform designed to help its users view notifications. Echo automatically filters notifications into categories and delivers the most important alerts straight to lock screen.

Company description As recorded 2026-11-08
ProductivityConsumer appConsumersConsumer

Founders & team

Previously Prim

Company history As recorded 2026-11-08

Yin Wu

Founder

Yin Wu is a serial entrepreneur who sold her last previous company to Microsoft in 2015. She was one of the youngest principal engineers at Microsoft and built products that applied machine learning to mobile products. Prior to Microsoft, Yin studied computer science at Stanford. She dropped out in 2011 to join Y Combinator for her first startup and is a three time Y Combinator alumnus (S11, S13, W20).

LinkedIn X
Founder profile As recorded 2026-09-15
2team members reported
Source-reported As recorded 2026-09-15

News & product activity

Sources & observations

Y Combinator

Profile depthverified profile
Website observationwebsite unreachable
Last website check2026-11-11
Location · source statedNot documented
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The source reports an inactive or acquired company; current product identity needs review.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationdescriptive evidenceclassified market and modelsourced people
startup.observe Directory coverage · Sources & method