ExtreemTek builds websites, web platforms and SaaS products, mobile apps for iOS and Android, and e-commerce stores, with AI features where they add value. We take products from idea to a market-ready MVP and then help them scale.

Which technologies does ExtreemTek use for web and app development?

For the web we use Next.js, React, TypeScript, Tailwind CSS and Astro. For mobile we use React Native, Flutter, SwiftUI and Kotlin. Back ends run on Node.js, Python FastAPI, PostgreSQL, Redis, WebSockets and GraphQL, and e-commerce on headless Shopify, WooCommerce and the Stripe API.

Do you build native or cross-platform mobile apps?

Both. We use React Native or Flutter when one codebase for iOS and Android is the best fit, and native SwiftUI or Kotlin when an app needs maximum performance or deep device access, such as Bluetooth (BLE) and sensors.

How does a web or app project with ExtreemTek run?

Projects follow four stages: discovery and system architecture, agile web and app sprints with live demos, a full cross-platform QA audit, and production launch with deployment to the web and the app stores.

Which apps has ExtreemTek built?

Examples include PlantCare, an Android app with AI plant health diagnosis, automated watering routines, a light meter and a water calculator, and FileShift, a cross-platform file transfer app for iOS, Android, Windows and macOS with encrypted peer-to-peer transfers and instant QR pairing.

Practical guides

Planning your app: cost, scope and partners

App development cost in the Netherlands (2026)Price ranges by app type, Dutch hourly rates, timelines and maintenance.Read the guide →What does an AI development company cost?Day rates and budgets from discovery and proof of concept to production.Read the guide →Hardware, firmware, app and cloud from one teamHow end-to-end product engineering works, step by step.Read the guide →

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Let's Discuss What You Are Building

Tell us where you are in your product journey and what is preventing you from moving forward. We will help you identify a practical next step.

Aqeel Wahlah Founder and CEO ExtreemTek, Eindhoven, Netherlands

I personally join the initial conversation to understand your product goals and ensure we bring the right technical expertise to the discussion.

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