GMI Software
Services

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Core areas
01AI & AutomationFrom workflow and business case to production02Mobile AppsiOS, Android, React Native03Headless & B2B commerceStores, sales platforms, ERP/PIM integrations
Complementary services
AI-gen developmentAgents, RAG and LLM integrationsE-commerce mobile analyticsFunnel measurement and data-led decisionsProduct Discovery & DesignScope, prototype and delivery planBackend, API & IntegrationsSystems connected to business operationsMaintenance & AuditsStability, performance and continued growthWorkshops & estimationRisks, decisions and fixed-price scope
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Projects

Explore products shaped by clear decisions and measurable outcomes.

All case studies
Delivered productsCase studiesInterfaces, scale and delivery outcomesStarting pointsApp ideas libraryProduct scenarios across 12 industries
Planning a product with similar complexity?Let’s talk
Technologies

We choose the stack around the product, scale and risk.

Explore the full technology stack
MobileReact NativeExplore
CommerceMedusaJS + headlessExplore
Frontend & QA
Next.jsReactTypeScriptPlaywrightMaestro
Backend, DB & cloud
Node.jsNestJSPostgreSQLDockerAWS
AI, 3D & automation
3D configuratorsAI agents & automationRAG & knowledge basesAI-native products
Explore the full technology stack
Tools

Estimate costs and organise decisions before a call.

3 free tools
App cost calculatorEstimate scope and budgetOpen toolE-commerce AI adviserMap decisions, risks and optionsOpen toolE-commerce TCO calculatorCompare SaaS and custom over 5 yearsOpen tool
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Company

Meet the people, working model and principles behind GMI.

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About usAccountability, history and proofCareersHow we work and open applicationsContactNew projects, support or partnerships
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AI Opportunity Sprint
Services
Mobile AppsHeadless & B2B commerceAll services
Projects and results
Technologies
Next.jsNode.jsAWSFull technology stack
Tools
App cost calculatorEstimate scope and budgetE-commerce AI adviserMap decisions, risks and optionsE-commerce TCO calculatorCompare SaaS and custom over 5 years
Meet GMIGet in touch
Open source

We build and share code

We create libraries and guides used by the React Native community. For CTOs and developers - concrete tools, not marketing.

@gmisoftware/react-native-paynpm

Apple Pay and Google Pay in one package for React Native with a unified API.

One library for Apple Pay (iOS) and Google Pay (Android) in React Native - same data model and API. Native checkout, TypeScript, Expo, Nitro Modules, usePaymentCheckout hook.

DocumentationGitHubnpmPrzelewy24 integration
react-native-better-clusteringnpm

Faster marker clustering on react-native-maps - same API, C++ engine via Nitro.

Drop-in replacement for react-native-map-clustering: same MapView and Marker API, but clustering off the JS thread. TypeScript, Expo (dev build), React Native 0.78+ and New Architecture. Scales to 10k+ points.

DocumentationGitHubnpm
react-native-better-mapsnpm

Faster, typed maps for React Native - Nitro Modules and New Architecture.

Unified API for Apple MapKit and Google Maps SDK: markers, overlays, native clustering, camera control. TypeScript, Expo (dev build), React Native 0.78+ and New Architecture. Zero-bridge via Nitro and JSI.

DocumentationGitHubnpm

Przelewy24 integration

Guide

React Native apps can offer Apple Pay and Google Pay with native UX; on the server you complete the payment via Przelewy24 API.

Ready integration guide: Google Pay config (Przelewy24 gateway), token-to-backend-to-P24 flow. For teams building e-commerce and payments in PLN.

Go to P24 integration guide
More about React Native at GMI
Contact

Let's talk
about the project.

Have an app idea or need technological support? Write to us — we'll prepare a preliminary analysis and estimate within 48h. Projects that go through our DDT process (Discovery, Design & Technology) come with a price guarantee and a fixed-price agreement — a key differentiator for us.

Write to us[email protected]
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80-890 Gdansk, PolandNearshore product delivery across EU, UK and US time zones.
NIP: 5252816287KRS: 0000830003
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