01
Understand
One short call to learn the product, the users, the constraints, and what good looks like.
UK app developers since 2014
Apps built to last.Built by the people you’ll work with.
We’ve built, launched, and successfully maintained apps used by millions of people worldwide for over a decade.
- 8.8M+
- downloads
- ~1M
- monthly active users
- 4.7★
- App Store rating
- 10+ yrs
- shipping apps
Who we are
A decade of building apps people use.
Root38 is a small UK studio. Since 2014 we’ve been building, launching and supporting successful apps. We work as a small, senior team. No outsourcing. No handoffs. The person you brief is the person who designs and builds your app.
Our flagship app, Event Countdown, has passed 5.9 million downloads, with close to a million people using it every month — and it’s been on the App Store for over a decade.
Read the Event Countdown story8.8M+
Downloads across our apps
~1M
Monthly active users
4.7★
From 131k+ ratings
10+
Years building apps
How we work
From idea to App Store; designed, built and supported by the same team.
02
Design
Your idea becomes screens, flows and the details that hold up under real use — designed for an actual build, not just a polished mockup.
03
Build
Native iOS and Android, or cross-platform when it fits, by senior developers who've shipped to millions. You see real work weekly, not at the end.
04
Launch & support
App Store listing, screenshots, release — and the ongoing fixes that decide whether people stick around. We support what we ship.
Best fit
Built for founders and businesses that want experienced developers from day one.
Most of our work is one-founder products, side-project apps that are ready to take seriously, and small startups who want senior people on the keyboard rather than a junior-heavy agency.
First app from a non-technical founder
iOS and Android MVPs
Replacing a freelancer who didn't ship
Refreshing a tired existing app
App Store launch and screenshots
Small, focused redesigns
Got an app idea, or one that needs help?