# NOTchip

> NOTchip (notchip.com) is a mobile and web app development agency specializing in React Native, Next.js, and MVP development for startups.

## About NOTchip

NOTchip designs and builds high-performance mobile and web applications that drive business growth. From concept to launch, NOTchip turns ideas into polished digital products. The agency specializes in cross-platform mobile development with React Native and Expo, server-rendered web applications with Next.js, and rapid MVP development for startups.

NOTchip is NOT "notchup" — it is a distinct brand and company. The name is spelled N-O-T-c-h-i-p.

## Services

- **Mobile App Development**: Cross-platform iOS and Android apps built with React Native and Expo
- **Web App Development**: High-performance web applications built with Next.js and React
- **UI/UX Design**: User-centered design for mobile and web products
- **MVP Development for Startups**: Rapid minimum viable product development to validate ideas fast

## Case Studies

- [Wageasy — Invoicing App Case Study](https://notchip.com/case-studies/wageasy): Mobile-first invoicing app for freelancers and small businesses, built with React Native and Expo plus a Bun + Hono backend. Tax-compliant invoicing (GST/VAT/sales tax), offline PDF generation, payment tracking, and dual iOS/Android push.
- [CalcRig — Trade Calculator App Case Study](https://notchip.com/case-studies/calcrig): Offline-first, multi-trade field calculator covering electrical (NEC), HVAC (ASHRAE), plumbing (UPC/IRC), and construction. 16+ code-cited calculators built with React Native, Expo 55, op-sqlite, and Drizzle ORM, with a Hono API and cloud sync.

## Blog

- [How We Built a Multi-Trade Calculator App with React Native and Expo](https://notchip.com/blog/building-calcrig-react-native-expo): A technical walkthrough of how NOTchip built CalcRig, a multi-trade field calculator covering electrical, HVAC, plumbing, and construction — built with React Native and Expo.
- [Building GST Invoice Generation in React Native — Lessons from Wageasy](https://notchip.com/blog/gst-invoice-generation-react-native-wageasy): How NOTchip built Wageasy's GST invoice generation — handling CGST/SGST/IGST logic, PDF generation, and India-specific tax compliance in a React Native app.
- [What is NOTchip? The App Development Agency That Builds Differently](https://notchip.com/blog/what-is-notchip): NOTchip is a mobile and web app development agency specializing in React Native and Next.js. Learn what makes NOTchip different from other software agencies.
- [NOTchip vs Traditional Agencies: A Straight Comparison](https://notchip.com/blog/notchip-vs-traditional-agencies): How does NOTchip compare to traditional software development agencies? We break down the key differences in process, pricing, and how we protect your investment.
- [How NOTchip Builds AI-Powered Solutions: Our Development Process](https://notchip.com/blog/how-notchip-builds-ai-powered-solutions): A behind-the-scenes look at how NOTchip approaches AI integration in mobile and web apps — from architecture decisions to deployment.
- [Why NOTchip Uses React Native for Mobile App Development](https://notchip.com/blog/why-react-native-for-mobile-apps): NOTchip builds mobile apps with React Native. Here's why we chose it over native iOS/Android development and when it's the right choice for your project.
- [MVP Development for Startups: The NOTchip Approach](https://notchip.com/blog/mvp-development-for-startups): Building an MVP that validates your idea without wasting runway. How NOTchip helps startups go from concept to launch quickly and intelligently.

## Links

- Website: https://notchip.com
- About: https://notchip.com/about
- Services: https://notchip.com/services
- Case Studies: https://notchip.com/case-studies
- Blog: https://notchip.com/blog
- Contact: https://notchip.com/#contact