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SpeedSound is a one-person, AI-native software company.

We build software for humans and agents—and share how we’re building an AI-native company.

Architectural window grid over quiet pews, with a phone on the bench

Our products

Focused tools for creators and productivity

Focus Metro App preview showing an iPhone with the NYC subway focus timer

Focus App

Explore NYC subway by focusing, turn a focus session into a subway ride, block distraction apps, and unlock stations.

focus subway
TwitterShots product preview showing a styled tweet screenshot

Twitter screenshot tool

Turn any X/Twitter post into a share-ready visuals.

Twitter screenshot
A quiet church sanctuary during a Sunday service

Real-time translation for churches

Guests open a link on their phone and read the sermon in their own language.

churches multilingual
PostPiper product preview showing the social post scheduling interface

Agent-native scheduler

Draft, schedule, and publish social posts from a dashboard or your AI agent.

Schedule post

Why SpeedSound?

Kevin Wu avatar
Kevin Wu
Founder@0xinhua

Hi, I'm Kevin Wu. I'm a solo founder and builder at SpeedSound.

I didn't set out to build a company. I just wanted to build things that work.

The word founder, to me, feels a little heavy. I've always identified more as a builder.

I shipped my first app about a year ago. It was a real shot in the dark, my first real attempt.

We're approaching $1,000 in monthly recurring revenue and it's used by tens of thousands of people each day.

I'm really proud of what we've built and gotten to so far. It's pretty amazing that you can build and ship something that people actually love and pay for, all by yourself, without a team.

I want to tell you how SpeedSound got its name. It's based on a little story that stuck with me.

It's from Walter Isaacson's biography of Steve Jobs. There's a sixteen-year-old kid in Michigan who bought an album on iTunes one day. That song turned out to be the first billionth song that was ever sold on the platform.

The story stayed with me. I love Steve Jobs, I've always deeply admired the man and his uncompromising taste.

Coldplay is my favorite band. "Speed of Sound" connected two things I love: technology and music.

That's why I named my company after the song.

First and foremost, I want to thank everyone who took a screenshot, who took the time to send me feedback, who decided to support a guy building his first product all by himself. This is only the first track of a much, much longer album.

Keep building, keep listening.

Read more -> TwitterShots $500 MRR