Case study
Implementing and validating ISO 27001 across front-end projects
Support in implementing and validating the ISO 27001 security standard across all of the company's front-end projects.
React Native & Capacitor experts — custom mobile and web applications.
We build, migrate and transform your mobile and web applications. React Native specialists for 10 years, we also help technical teams move from web to mobile with Capacitor.
We have worked with hundreds of amazing people
Our work
Three technical areas we work in every day: migrating and upgrading React Native apps, turning websites into mobile apps with Capacitor, and fullstack development with React, Next.js and Node.js. One technical partner for both web and mobile.
Case study
Rebuilding a mobile trading app and integrating broker APIs
A full rebuild of the mobile app in React Native, with integration of broker APIs such as Binance and Alpaca, and real-time display of trading data.
Case study
Building a returnable equipment management app with a back office
Development of an app for managing returnable equipment, with an admin back office to track inventory and flows.
Offers - Our packaged offers
Services with a defined scope, a published price and a stated timeline.
React Native Migration Audit
€1,500 excl. VAT5 business days
Running a React Native app in production on an old version? We analyze it and hand you a costed, prioritized migration plan.
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Full React Native Migration
From €18,000 excl. VAT4 to 8 weeks
Full migration to the latest stable version, New Architecture, dependency upgrades and store redeployment. Fixed price, scope defined after the audit.
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Website → Mobile App (Capacitor)
From €8,500 excl. VAT3 to 6 weeks
Your React, Next.js or Vue.js website turned into a real iOS and Android app, installable from the stores. Capacitor expertise proven in production.
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Your Lovable app on iPhone and Android
From €8,500 excl. VAT3 to 6 weeks
Built your app with Lovable? We turn it into a real mobile app and submit it to the App Store and Google Play. No rewrite needed.
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GUIGUI Tech communicates well, moves efficiently and delivers features cleanly!
Services - From audit to release, a single technical partner.
We design custom solutions that fit your constraints — mobile, web, audits, compliance.
- React Native migration & upgrades. Is your React Native app showing its age? We audit it, migrate it to the latest versions (New Architecture, Hermes, Fabric) and bring it back up to standard — without breaking everything.
- Website → mobile app (Capacitor). Your React, Next.js or Vue.js website becomes an iOS and Android app in a few weeks, without rewriting the code. Push notifications, camera, geolocation — it is all available.
- Custom fullstack development. React Native mobile apps, Next.js web applications, Node.js backends. From idea to store release, a single technical point of contact.
- Technical audits & compliance. Code, performance and security audits (ISO 27001, eIDAS, SCA frameworks). We identify the issues and hand you a costed action plan.