React

// Web technology · product frontend

From idea to a working product
in a stack the whole market knows.

React lets you build a web app the market already understands — and that any frontend team can take over. We help startups and product companies ship a working product, not another deck.

Let’s talk about your product → Why React

3 weeks to first MVP

#1 web framework in the world

Web + Mobile same framework, one team

// Who uses it

React powers products you use every day.

If React is enough for Netflix serving hundreds of millions of subscribers, it’s probably enough for your app too.

// Why React

Six reasons it’s the safest pick today.

First the things that matter from a business perspective. Below — the technical details, if you want to look under the hood.

// For business

#1 on the web

A market standard, not an experiment

React is today’s #1 framework on the Western web — used by most serious online products, from marketplaces to internal panels at banks. Pick React and you pick a technology nobody will have to justify to the next team two years from now.

React-first for years

Specialists, not generalists

You’re not working with a team for whom React is the second or third framework in the portfolio. It’s been our main stack for years — from architecture, through performance patterns, to tooling details. Among us are official maintainers of an open-source library from the React ecosystem (ReactGrid — 1,400+ stars on GitHub, ~60K NPM downloads/month).

libraries for everything

Mature library ecosystem

For every typical product problem, someone has already written a proven library: global state, forms, tables, routing, animations, auth, payments. We don’t reinvent the wheel — we assemble the product from components that have survived battle at thousands of other teams.

reuse with React Native

Code sharing with mobile

If you’re planning (or already have) a mobile app in React Native, we reuse a substantial part of the code — domain logic, validations, schemas, API contracts — across both projects. One company, one team, one knowledge base. Real savings, not a marketing slogan.

SPA → SSR → RSC

We scale in both directions

From a lightweight SPA with Vite to full SSR/SSG/RSC in Next.js. We don’t start with a "heavy" framework if the project doesn’t need it — but when the moment comes that SEO, time-to-first-byte, or edge rendering starts to matter, we know how to lift it without rewriting from scratch.

Meta · 2013→

A long-term safe choice

React has been around for over 10 years, backed by Meta (Facebook & Instagram), with a community so large it’s not going anywhere overnight. It’s the technology picked by companies that think about their product in years, not months.

// Honestly

When React fits — and when it doesn’t.

We don’t sell every technology for every problem. If React doesn’t fit your project, we’ll say so — and propose an alternative.

React is a good choice for:

SaaS apps and product panels with rich interfaces (filters, forms, tables, dashboards)
marketplaces and platforms connecting two sides (seller / buyer, caregiver / care-seeker, freelancer / client)
internal tools and CRMs that need to work faster than the commercial product for employees
first product versions (MVP), when the stack must be predictable and the team replaceable
apps requiring real-time (chat, notifications, live dashboards, collaboration)
products growing in parallel with a React Native mobile app — reusing domain logic

Let’s build your idea! →

We advise against React if:

Your product is a pure marketing site with minimal interactivity. Landing page, company blog, simple info portal — in those cases Astro delivers a better price-to-result ratio (less JavaScript, better SEO, lower maintenance cost). React is a tool for products, not for flyers.
You need a native desktop app working offline from the first launch. React can be the heart of a desktop app via Electron or Tauri, but if full system integration (USB, low-level printing, drivers) is key — consider a native approach too (Swift, .NET, Qt).

In those cases we’ll point you to an alternative approach — Astro or native — and help you find the right people.

// Industries & examples

What we actually build, by industry.

A few app types per industry — not an exhaustive list, just a starting point for a conversation. If your industry isn’t here, chances are we’ve done something close in our portfolio.

Healthtech & care

3 examples

Senior care marketplace

A platform connecting families with caregivers — location-aware search, skills taxonomy, verified profiles, real-time chat with replay of missed events.

Patient portal

Online appointments, e-prescriptions, treatment history, medication reminders, and secure medical documents in one place.

Panel for a medical facility

Staff scheduling, room booking, public-health integration, billing reports, and patient communication.

Is this your industry? Let’s talk →

SaaS & B2B tools

3 examples

Product management dashboard

Dashboard with real-time metrics, user management, invoicing, roles and permissions.

CRM for the sales team

Sales funnel, email and calendar integrations, per-rep reports, revenue forecasts.

Analytics tool

Business-data insight with custom reports, exports, filters, and period comparisons.

Is this your industry? Let’s talk →

Fintech & payments

3 examples

Online banking

2FA login, domestic and international transfers, transaction history with filters, accounting export.

Investment portfolio

Live valuation, broker integration, price alerts, operation history, and tax reports.

Small-business accounting app

Invoicing, expense tracking, bank and tax-system integrations, payment reminders.

Is this your industry? Let’s talk →

E-commerce & marketplace

3 examples

Multi-seller marketplace

Buyer and seller panels, per-transaction commissions, rating system, in-app chat, escrow payments.

Online store with product customization

Product configurator, 3D preview, price calculator, cart with state persistence, warehouse integration.

Loyalty program

Points, coupons, customer leaderboard, marketing campaigns, integration with POS systems.

Is this your industry? Let’s talk →

Education & e-learning

3 examples

Online course platform

Video player with notes, quizzes, completion certificates, learning paths, student progress.

App for a school or university

Class schedule, grades, attendance, parent–teacher communication, e-gradebook with PDF export.

Corporate training platform

Employee onboarding, mandatory compliance training, development paths, HR reports.

Is this your industry? Let’s talk →

Logistics & operations

3 examples

Dispatcher panel

Real-time vehicle map, route optimization, job assignment to drivers, per-trip reports.

Warehouse WMS

Locations, order picking, inbound deliveries, labels, inventory with CSV import.

Panel for shippers

Integration with courier companies, automatic pricing, labels, parcel tracking, complaints.

Is this your industry? Let’s talk →

HR & recruitment

3 examples

ATS — recruitment system

Candidate pipeline, recruiter scoring, integration with job boards, interview calendar, contract generation.

Employee portal

Time-off requests, work-time tracking, payslips, team calendar, document repository.

Performance review app

Quarterly goals, 360° feedback, 1:1 meetings, career paths, manager reports.

Is this your industry? Let’s talk →

Media & publishers

3 examples

News portal

CMS with editorial workflow, live preview, publication scheduling, social media integration.

Subscription platform

Paywall, subscription management, Stripe integration, content gating, A/B testing offers.

Newsletter & reader communication

Segmentation, automations, open-rate stats, analytics integration, drag-and-drop editor.

Is this your industry? Let’s talk →

Construction & real estate

3 examples

Real estate listings platform

Map with filters, virtual tours, mortgage calculator, agent panel, integration with brokerage systems.

Panel for developers

Investment management, online apartment sales, payment schedules, contract generation.

CRM for a real-estate agency

Client database, matching listings with searches, integrations with portals, per-agent reports.

Is this your industry? Let’s talk →

Other

and more

If your industry isn’t here, chances are we’ve done something close in our portfolio. We’ve worked on automotive apps, on apps for the breakdance scene and amateur sports, on dating, cashback and loyalty apps, in the supplements industry — and in a few stranger areas that don’t fit neatly into one tile. Tell us what you’re building — we’ll be honest about whether we know your case and how to approach it.

Describe your idea →

01 · Process

Seven steps from workshop to production. (and more…)

weeks to the first working version.

After 3 weeks you have a working version in hand. From there, a demo and a new batch of features every two weeks — up to a full MVP in 3–12 weeks.

MVP · step 06

01 / 09

Workshop

We spend a day at your company — meeting the team, mapping processes, gathering context. We come back for follow-up visits whenever we need to see something up close.

Day 1

02 / 09

Wireframe

One day after the workshop you have a clickable mockup in hand. The first moment you see how the product can look and behave — and what is missing.

Day 2

03 / 09

UI/UX iteration

We refine visuals and interactions based on your feedback. Every change comes back to you within a day.

Day 3 – 4

04 / 09

Team prototype

A full clickable prototype that goes into your team's and clients' hands. We catch the last gaps before any code is written.

Day 5 – 7

05 / 09

Architecture

System diagram, stack choice, schedule, budget. Foundations for the production build, signed off together.

Week 2

06 / 09

Build (MVP)

2-week sprints with demos. Every two weeks you get a fresh batch of features and fixes — exactly the ones you cared about.

3 – 12 weeks

07 / 09

Deployment

Integrations with your tools, data migration, training, documentation. We go live together.

1 week

08 / 09

Maintenance

Hot-fixes, iterations, new modules. We stay with you after launch.

Open-ended

09 / 09

Network

We open up our ecosystem to you: lawyers, marketing, founders of other projects. You become part of a network of "emerging unicorns" — we help you find each other.

After we start working together

// Who builds it

You work directly with the person leading the project, not a salesperson.

// Stack

The stack we work with.

Web: React 19 + TypeScript + Vite + Rolldown

We use proven libraries from the React ecosystem picked to fit the specific project — including TanStack Query, TanStack Form, TanStack Table, Zustand, Zod, Ky, Paraglide.js, Motion, and others.

Vite with the new Rolldown bundler is today’s fastest frontend stack — milliseconds in dev and production builds an order of magnitude faster than classic Webpack. Shorter feedback loop, higher release quality.

TypeScript end-to-end — frontend, NestJS backend, and shared libraries in a single pnpm monorepo. We define API contracts once and import them on both sides; types can’t drift between client and server.

Backend, infrastructure, DevOps, and the rest of the technologies we work with are documented in detail here.

// Why it matters

One coherent ecosystem from the database all the way to the component in your user’s browser. One company, one team, one contract, one point of contact. Less coordination, fewer "not our fault" exchanges, faster decisions.

// Under the hood Technical details — stack, architecture, tooling

▮

TypeScript end-to-end

All code — frontend, backend, shared libraries — typed from day one. Fewer production bugs, safer refactors, faster onboarding.

▮

React 19 and Concurrent Rendering

We use the latest React 19 features: Server Components where it makes sense, the `use` API, Actions, automatic batching, and Suspense for streaming data loading. Not for the fad — where they genuinely improve UX.

▮

Vite 8 + Rolldown — dev experience first

We swapped the old Webpack stack for the next generation of tooling:

Vite 8 — lightning-fast dev server on native ES modules — change reload in milliseconds, even in large projects.
Rolldown — a successor to esbuild/Rollup written in Rust by the Vite team — production builds even an order of magnitude faster than classic Rollup.
Stateful HMR — edit a component, the state doesn’t reset — the feedback loop shortens from minutes to seconds.

▮

pnpm monorepo + workspace packages

Frontend, backend, and shared libraries in one repository, managed by pnpm workspace.

Type-safe API from database to form — contracts defined once in the `@workspace/shared` package, imported directly by backend and frontend with no intermediate layers.
Aliases to TS sources — frontend points by alias at `packages/shared/src/index.ts` — there’s no separate "build shared, then frontend" step. A change in shared is visible immediately.
One lock, one install — pnpm@10 with `onlyBuiltDependencies` — faster install, less junk on disk, deterministic CI.

▮

Mature library ecosystem

We use libraries picked to project needs — including TanStack Query (server-state), TanStack Form, TanStack Table, Zustand (UI-state), React Router or Next.js routing, Zod (validation), Ky (HTTP), Motion (animations), Radix or shadcn/ui (components).

▮

Tests — Vitest 4 + Playwright

We test deliberately, not for coverage.

Vitest 4 — unit and integration tests — run faster than Jest, on the same config as Vite, with native ESM and TypeScript support.
Playwright — E2E where the user path has business meaning (signup, payment, key product flow).
Deliberately skipped — 100% coverage — form over substance. We test what matters — critical logic and regressions.

▮

CI/CD and observability

A build isn’t the end — what matters is how code reaches users.

GitHub Actions — lint, typecheck, and tests on every PR — nothing lands in main without a green gate.
Sentry — crash reporting with source maps uploaded on every build — we see real errors, we don’t guess.
Docker + compose — dev environment identical to production; a new developer runs the project with a single `docker compose up`.
Staged rollout (optional) — feature flags with LaunchDarkly / our own service, beta channels — a new feature goes to a slice of users first.

// FAQ

Frequently asked questions.

Is React fast?

From the user’s perspective — yes: the app runs smoothly, opens quickly, doesn’t stutter on interaction. That translates directly into conversion and lower churn.

Under the hood: React 19 with Concurrent Rendering and Server Components renders selectively only what has changed — not the whole tree. With a good stack (Vite, TanStack Query, code-splitting) a React app is comparable to native JavaScript. Where requirements are extreme (large tables, canvases, real-time), we pick up additional tools: memoization, list virtualization, RSC, edge rendering.

Is React "not dying"? Shouldn’t we wait for something newer?

By picking React, you pick a technology nobody will have to justify to the next firm two years from now — and one that the next team can easily maintain. It’s the largest developer pool on the market and the safest long-term choice.

Technically: React has existed since 2013, is backed by Meta, and is used by half of the internet — including Netflix, Shopify, Discord, Atlassian, Cloudflare. The frontend world experiments (Svelte, Solid, Qwik), but React remains the production standard. "Something newer" appears every two years. "Something stable, with a huge developer pool and ecosystem" — that’s still React.

Next.js, Vite, or TanStack Start — which do you pick?

We work with all three; the product dictates the choice, not fashion. By default, for new apps we reach for TanStack Start — it gives full SSR, type-safe routing, and naturally cooperates with the rest of the TanStack ecosystem (Query, Form, Table) that we use anyway.

Under the hood: TanStack Start — our preferred pick for products requiring SSR/SEO. Next.js — when the project is strongly tied to Vercel or requires React Server Components in production. Vite — when we build a panel, dashboard, or SaaS behind a login; a lighter stack, independent backend, shorter startup time.

SSR, SSG, CSR — when which?

From a business perspective: if you need to rank in Google, you need server-side rendering (SSR or SSG). If you’re building a product behind a login where SEO doesn’t exist — CSR is enough. We decide per screen, not per app, so you don’t pay a cost that won’t return.

Technically: CSR (the client renders everything) — panels behind a login. SSR (the server renders on request) — pages where content is dynamic and SEO matters. SSG (build-time HTML) — marketing pages and blogs that change less often than users visit. RSC (React Server Components) — a hybrid, when you want to avoid the JS ballast on the client side.

Will a React app look the same in every browser?

Yes — all your users see the same product, whether they’re on Chrome, Safari, Firefox, or Edge. Which versions we support is a deliberate business decision, not a technical accident.

Under the hood: React renders DOM, which is a browser standard; small differences (Safari CSS behavior, older Firefoxes) we test automatically. By default we support the last 2 versions of Chrome, Safari, Firefox, and Edge — we agree the full version matrix with you at the start.

How long does it take to build an app?

We can deliver an MVP in 3 weeks. A full product — typically 4 to 16 weeks, depending on scope. You get an exact timeline after a short discovery phase, once we know the specific scope.

Do I get the source code?

Yes. The code is yours from the first commit. We work in your repository — you have ongoing access.

Do you only do web frontend?

No. We also do mobile (React Native), backend (Node.js, NestJS, Express), databases (PostgreSQL, MongoDB), and DevOps. Often the whole product — web, mobile, API, and deployment — is built with us. That simplifies coordination significantly and gives you stack coherence from database to UI. You can find the full list of technologies here.

How much does it cost?

It depends on the scope. After a short conversation and reviewing the project, we give a range. We don’t work in a "quote without a brief" model — that’s unfair to both sides.

// Comparison

React vs…

The two most common questions in a first meeting. Short and to the point.

Angular

React for new projects

Angular still works well in large, long-term enterprise projects — especially where the team already knows it. But for a new start, the differences are clear:

Learning curve. Angular requires knowledge of RxJS, DI, decorators, modules — many concepts to grasp before you see the first screen. React is simpler to start with, and we add complexity deliberately when the project requires it.
Stack flexibility. Angular imposes its own vision of state management, routing, forms, and HTTP. In React we pick the library that fits the problem — instead of the one the framework imposes.
Ecosystem and modernity. React adopts new paradigms first (hooks, RSC, concurrent). Angular catches up — often with a two- or three-version delay.
Reuse with mobile. Angular doesn’t have a sister mobile framework comparable to React Native — code between web and mobile doesn’t share natively.

For new projects we recommend React. We maintain and extend Angular stacks if it’s an inherited project.

Vue

Vue is our second playing field — we work with it deliberately, know the ecosystem (Pinia, Vue Router, Nuxt), and gladly ship projects in it. By default, however, we recommend React — for two concrete reasons:

Developer pool. React has a larger community and a larger developer pool on the market. When you need to quickly grow the team or swap people mid-project — that’s a concrete difference.
Reuse with mobile. React Native lets you share logic and components between web and mobile. Vue doesn’t have that path — the mobile version is usually a separate project.

We do Vue deliberately where the client’s team already works in it or we integrate with existing Vue/Nuxt code — with full support, no compromises.

// Final step

Got an idea for a web app? Let’s talk.

No sales pitch, no "cloud of solutions." Tell us what you want to build — we’ll tell you whether React is the right pick, how long it’ll take, and what it’ll cost.

Ready when you are

Tell us what you need.

Have an idea for an app or need tech support? Write to us — we'll prepare an initial analysis and estimate within 48h.

Write to us

[email protected]

+48 884 930 950

Office

philosopht Dawid Michota

ul. Świętokrzyska 41A

26-001 Wola Kopcowa, Poland

NIP 6573002241

Free consultation

From idea to a working product in a stack the whole market knows.

Healthtech & care

SaaS & B2B tools

Fintech & payments

E-commerce & marketplace

Education & e-learning

Logistics & operations

HR & recruitment

Media & publishers

Construction & real estate

Other

Angular

Vue

Got an idea for a web app? Let’s talk.

Tell us what you need.

From idea to a working product
in a stack the whole market knows.