Our portfolio
Products for communication, creativity, health, navigation, and the occasional delightful distraction. Each keeps its own identity; all are designed, built, and maintained by Thirty Seven.
Independent software company + consultancy
We make software and keep it useful.
Thirty Seven builds software and operates its own portfolio. We also selectively help founders and small teams turn clear ideas into shipped, dependable software.
Built + operated here
Our portfolioHealthcare to creative toolsExplore the work
The shape of the company
Products are the proof.
Shipping our own software keeps product, engineering, launch, and maintenance decisions in the same room.
Selected client work
We work directly with founders and small teams when the fit is right. That can include product guidance, implementation, launch, and the support that follows.
Where we work
Deep in iOS. Useful beyond it.
Native iOS is where we have spent the most years. The products around it have also taken us across Android, web, backend systems, and the practical work of keeping software healthy after launch.
01
Native iOS
Our deepest experience: Swift, from first prototype through App Store launch and the releases after it.
02
Android + web
Shipped products across mobile and the web, shaped around the platform rather than forced into one template.
03
Backend systems
The services, integrations, and operational tooling that keep useful software running behind the interface.
04
Beyond launch
Product guidance, implementation, launch, and post-launch support when the work calls for it.
Start a conversation
Tell us what you’re working on.
A short, direct note is enough. We read every inquiry ourselves.