REST vs GraphQL: Which API Style to Choose
A practical guide to picking the right API design for your product.
Your one-stop Node.js partner for the backend that powers your product. We build fast, secure, scalable APIs and real-time services that stay reliable as your traffic grows.
Trusted by teams worldwide
From a single API to a full microservices platform. Six service lines cover every part of building a modern Node.js backend.
Six engineering disciplines behind every Node.js backend we ship, and the tools we use for each.
Clean, modular backends on Express, NestJS or Fastify, built for reliability and scale.
Well-structured, documented REST and GraphQL APIs with versioning, auth and caching.
WebSockets, pub/sub and streaming for chat, live data and collaborative features.
Event-driven services with queues and brokers that deploy and scale independently.
SQL and NoSQL data layers with modelling, indexing and query optimisation.
Docker, Kubernetes, CI/CD and monitoring that keep services fast and always up.
A short call and a look at your requirements or current backend tells you exactly where it can scale better, and how we would design it. So your first dollar goes toward something solid.
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A clear, low-risk process that keeps you in the loop at every step.
We map requirements, data and load, choose the architecture and agree a fixed quote.
API contracts, data models and infrastructure design before we build.
We build services in sprints with tests and demos the whole way.
Automated tests, security checks and load testing before launch.
CI/CD deploys, monitoring and a roadmap for scaling and new features.
Backends and APIs launched for startups and enterprises worldwide.
Reliable infrastructure and monitoring keep services online at scale.
Typical gains after our performance and query optimisation.
Throughput our real-time backends handle in production.
Real products, real users, real numbers, across health, mobility, delivery and education.

Mood tracking, guided sessions and personalised wellness plans in a warm, calming experience.

Live driver tracking, surge-aware fare estimation and multi-payment support in a fast, reliable app.

Live order tracking, smart dispatch and route optimisation that cut delivery times across 200+ restaurants.

Coach matching, personalised study plans and adaptive progress tracking for 10K+ students.
Every bullet is something we've actually shipped, not a sales pitch.

HIPAA-ready products for patients, providers and wellness.

Secure, compliant products for payments and money movement.

Commerce that converts and keeps customers coming back.

Real-time products for delivery, dispatch and field teams.

Engaging learning products for students and coaches.

Property products for search, tours and lead capture.
“Appther built our student competition app exactly the way we envisioned it: easy registration, smooth judging, and real-time results that keep participants engaged.”

“Building a mental health app means every detail has to be handled with care, and Appther got that from day one. The product feels warm, simple, and genuinely helpful.”

“Appther exceeded every expectation, on time and on budget, and the final product has been instrumental in scaling our business. A rare engineering partner.”

“Implementing an ERP across our operations felt daunting at first, but Appther made the transition seamless. Every department now works off a single source of truth.”

Field notes from real builds. No hype, just what worked and what didn't.
A practical guide to picking the right API design for your product.
The architecture patterns we use to handle real production load.
How we decide when to split a backend into services.
A clear breakdown of what drives backend cost, and how to scope it.
Walk away from one call with the right architecture, a scalable data model, a realistic budget range and a delivery timeline. No pitch deck, no obligation.
Tell us what you're building. No sales pitch, just a straight answer on architecture, scope, timeline and cost.
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