Independent Studio

Mobile apps and backends,engineered with precision.

Stelr builds React Native mobile applications and Java Spring Boot backends — and the systems behind them — with clarity, restraint, and respect for the people who use them.

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6+Apps shipped
100%React Native
1Studio

Capabilities

Built to handle
every layer.

From the first sketch to App Store approval — design, engineering, and infrastructure under one roof.

01

React Native Apps

Cross-platform iOS and Android applications built with React Native and Expo — one codebase, truly native performance, shipped to both stores.

React NativeExpoTypeScript
02

Java Spring Boot APIs

Robust, production-grade REST APIs and microservices built with Java Spring Boot — designed for scale, maintainability, and long-term reliability.

Spring BootJavaREST
03

Backend Systems

End-to-end backend architecture using PostgreSQL, Redis, Kafka, and Docker — engineered to support mobile apps from day one through hypergrowth.

PostgreSQLDockerRedis
All services

Selected Work

React Native

Drift

A cross-platform journaling and mood-tracking app with offline-first sync, hand-tuned motion, and a Spring Boot backend powering analytics.

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React Native

Lumen

A focus and intention app — minimal, gesture-driven, and built with React Native. A Spring Boot backend delivers personalised daily prompts.

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React Native

Atlas

An offline-first field operations app for teams in low-connectivity regions, backed by a conflict-resolving Spring Boot sync engine.

View case study
01

Clarity over noise.

Every screen earns its place. Every interaction has a reason.

02

Craft over shortcuts.

Native feel, considered motion, and details that quietly compound.

03

Systems over features.

Apps designed to grow gracefully — not collapse under their own weight.

0+

Apps shipped

React Native apps live on both stores

0%

React Native

Every app built with RN + Expo

0.9★

Average rating

Across all App Store & Play Store apps

0

Platforms, one codebase

iOS and Android from a single repo

How I build

React Native

Expo · TypeScript · React Navigation · Reanimated

Java Spring Boot

REST APIs · Spring Security · Spring Data JPA

PostgreSQL

Relational DB · Hibernate ORM · Database design

Redis

Caching · Session management · Pub/Sub queues

Docker & CI/CD

Docker Compose · GitHub Actions · Railway · Render

Firebase / Cloud

Push notifications · Auth · Storage · Analytics

Notes from the workbench

Field Notes

01
React NativeApr 2026

Why React Native + Expo is the right default for most mobile products

One codebase, two stores, near-native performance. The tradeoffs that used to make native-only a hard requirement have quietly disappeared.

Read more
02
Spring BootMar 2026

Designing Spring Boot APIs that mobile clients actually enjoy consuming

Pagination, consistent error shapes, and keeping response times under 100ms — the backend decisions that make a mobile app feel fast.

Read more
03
ProcessFeb 2026

Shipping as a one-person studio without cutting corners

Systems, automation, and the discipline of saying no — how a solo founder protects craft at velocity.

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Working with

FoundersIndie DevsEarly-stage StartupsProduct TeamsDesign AgenciesTechnical Co-foundersSaaS CompaniesConsumer AppsFoundersIndie DevsEarly-stage StartupsProduct TeamsDesign AgenciesTechnical Co-foundersSaaS CompaniesConsumer Apps

Start a Project

Let's build something
meaningful.

Tell me about your idea — I'll get back within within 24 hours.

Get in Touchhello@stelr.studio