React Native app development that ships
React Native apps for iOS and Android from a single codebase, built with Expo, EAS cloud builds and Supabase.
Boutique software studio
Software development services
Product engineering, mobile app development, and technical rescue, delivered end to end by senior engineers who ship, not slideware.
What we build
Every service below is scoped and led by a senior engineer, start to finish. No account managers, no handoffs. Browse what we build, then open the page that matches your project.
MVP development for startups
Scope, design, and build the smallest real product that can prove your idea with actual users.
Web app development for startups
SaaS dashboards, client portals, and internal tools, built with Next.js, React and Supabase.
How we work
The same four steps on every engagement, whether it is a six-week MVP or a rescue of a codebase someone else left behind.
1. Scope before code
We start by cutting the wishlist down to the flows that prove the product works. You get a written scope with what is in, what is explicitly out, and what it costs, before anyone opens an editor.
2. Build in the open
Work lands in a repository you own from day one, in small reviewable commits. You see a running build every week, not a status report about one.
3. Ship to a real store or domain
Delivery means live: an app approved on Google Play or the App Store, or a web app on your own domain with analytics and error tracking wired in. Not a zip file.
4. Hand over, not hold hostage
You keep the repository, the cloud accounts, the signing keys and the documentation. If you hire an in-house team next year, they can pick it up without calling us.
The stack we build on
One opinionated stack, chosen for shipping speed and running cost, not for novelty. Using it on every project is why estimates hold.
Mobile
React Native with Expo and EAS cloud builds, TypeScript in strict mode, and over-the-air updates for fixes that cannot wait for store review. It is the stack behind every app we have on Google Play.
Web
Next.js and React on Vercel, server components by default, static where the content allows it. Fast pages without a caching layer you have to babysit.
Backend and data
Supabase for Postgres, authentication, storage and edge functions, with row level security written alongside the feature instead of bolted on later.
Before you get a quote
Most of the budget questions come up before the first call. We wrote them down instead of saving them for the pitch.
How much does it cost to build an app?
Real 2026 ranges by complexity, what pushes a quote up, and where cutting scope saves money without gutting the product.
How much does an MVP cost?
What an MVP budget actually buys, where it goes, and why scope discipline is the only lever that moves the number much.
How long does it take?
Phase-by-phase timelines by app type, and the things that delay launches that have nothing to do with engineering.
Common questions
Do you work with clients outside the United States?
Yes. Teddy Code LLC is registered in the United States and works with founders and teams worldwide, in English and Spanish. Everything runs remotely: written scope, a shared repository, and a weekly build you can open yourself. Time zone has never been the thing that sank a project.
Can you take over a project another team started?
Yes, and it is a large share of the work. The first step is a paid audit of what exists: what runs, what is dead code, what the real state of the database is, and whether finishing it is cheaper than rebuilding the core. You get that assessment in writing, including the answer you may not want, which is sometimes that a rebuild costs less than the rescue.
Do I own the code?
You do, from the first commit. The repository lives in your account, not ours. The same goes for the app store listings, the cloud projects and the signing keys, which is what actually determines whether you can walk away.
How do you price work?
Fixed price against a written scope, invoiced in milestones. If the scope changes mid-project, the change is quoted before it is built, never discovered on the final invoice. We do not work for equity. See the MVP cost guide for how a budget breaks down in practice.
What kind of project is a bad fit?
Anything that needs a large team running in parallel, staff augmentation by the seat, or a fixed quote for a scope nobody has defined yet. Those are real needs, just not ours. Saying so early costs you less than finding out in month two.
What have you actually shipped?
Products built and published by the studio, not case study mockups: Playro, Stusher and Woggli on Google Play, plus a set of smaller apps, and web products including FadeChats and Hallazgo. You can open every one of them from the products page and judge the work directly.