Full Stack Apps

Our team builds highly performant full stack apps for Web, iOS & Android.


  • Single Page Apps
  • Native Apps
  • Custom APIs
  • Database Design
  • Security & Dev Ops


  • Next.js & React
  • React Native
  • Ruby on Rails
  • Elixir Phoenix
  • Vercel


Cross Platform Native Apps

Our team specializes in shipping slick, performant native apps, shipping to both Android & iOS through our deep understanding of the React Native toolchain, greatly improving agility while reducing overall development costs.

Single Page Apps

Using Next.js and Vercel, our team develops snappy web apps, combining the performance of a server-rendered app with the rich interactivity of a single page JS app.

Custom APIs and Serverless Functions

We build resilient backends and microservices using Typescript, Ruby on Rails, Elixir Phoenix, ensuring high throughput, fault tolerance, and solid uptimes.

Server Rendered Apps

When certain jobs call for it, we'll reach for server-rendered app frameworks like Elixir Phoenix (and LiveView) or Ruby on Rails (and Hotwire) to drastically simplify the stack, improving developer productivity and lowering project costs.

Our full stack apps process millions of dollars each year for our clients, through excellent maintainability, and rock solid resiliancy.

Some of our Full Stack Apps

Our Process

  1. 1.

    We like to start new engagements with our Technical Blueprinting phase. We listen, research, test — and consolidate our plan into an architecture document that guides the build.

  2. 2.

    Our development process is agile, transparent and collaborative, managed through lightweight weekly touchpoints, tight feedback loops and waves of iteration.

  3. 3.

    As your product rolls out, we’re standing by — fixing bugs, tweaking codepaths, and shipping features in realtime, from your first user to your first 100,000.

We’re friendly, transparent, communicative and hospitable, as it’s our best relationships that produce the most meaningful work. How we ship better work ↗

Safety & Testing

Through typesafe programming and a careful approach to programatic testing, we build solid, reliable apps that are easy to maintain and iterate on for years to come.

We strive to build thoughtful, human-centric products through an open and transparent approach to timelines and estimates. We're not a traditional agency ↗

A HIPAA compliant onboarding system

When we built Tend’s Patient Onboarding, we wanted to allow customers to access real-time insurance estimates. Using Ruby on Rails and React, we built a modern and performant experience, using HIPAA compliant components all the way through to the database.

Read the Case Study

Today, our team is worldwide, but we started in NYC, and we’re still mostly based in the US Eastern timezone.

If you’d like to chat more, please email us at hello@sanctuary.computer