gmi.software
Services

Start with the outcome you need to achieve.

Explore all services
Core areas
AI & AutomationFrom workflow and business case to productionMobile AppsiOS, Android, React NativeHeadless & B2B commerceStores, sales platforms, ERP/PIM integrations
Diagnostic auditMobile App Code AuditBefore release, after handover or ahead of modernization
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 operationsApp maintenanceSLA, monitoring, stability and continuous improvementWorkshops & estimationRisks, decisions and fixed-price scope
Not sure where to start?Book a short consultation
Projects

Explore products shaped by clear decisions and measurable outcomes.

All case studies
Delivered products

Case studies

Interfaces, scale and delivery outcomes
Świat KsiążkiMobile loyalty programme and product catalogueSFDCommerce, loyalty and everyday motivationSTS / Solarts3D solar installation configurator
View all case studies

Project areas

  • Mobile
  • Web
  • AI
  • E-commerce

Different industries. One goal — tangible outcomes.

Looking for inspiration? Explore the app ideas library
Technologies

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

Explore the full technology stack
Core specialisms
MobileReact NativeScalable iOS and Android productsCommerceMedusaJS + headlessFlexible commerce, B2B and integrations
Frontend & QA
Next.jsReactTypeScriptPlaywrightMaestro
Backend & cloud
Node.jsNestJSPostgreSQLDockerAWS
AI, 3D & automation
3D configuratorsAI agents & automationRAG & knowledge basesAI-native products
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
Already have a result or brief?Discuss your outcome
Company

Meet the people, working model and principles behind GMI.

About usAccountability, history and proofCareersHow we work and open applicationsContactNew projects, support or partnerships
Get in touch
AI Opportunity Sprint
Services
Mobile AppsHeadless & B2B commerceDiagnostic auditMobile App Code AuditApp maintenanceAll 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.

react-native-better-pdf

MIT

A native, virtualized PDF viewer for React Native.

Nitro Views and the New Architecture, with PDFKit on iOS and PdfRenderer on Android. Native scrolling, zooming and rendering without a WebView. Supports local files, remote documents and offline caching. Expo requires a development build; Expo Go is not supported.

DocumentationGitHubMIT license
@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

Let’s discuss your project.

Tell us what you need. We’ll suggest the next step.

[email protected]
gmi.software Sp. z o.o.ul. Jana Heweliusza 11 / 819
80-890 Gdansk, Poland
© 2026 gmi.software Sp. z o.o.
Privacy PolicyTerms