Browse categories
Explore
Fiverr Pro
English
$
USD
I will develop mobile app android ios with react native expo and fix bugs errors
Sander Joreon
About this gig
Is your React Native Expo app broken, crashing, or failing to perform on both iOS and Android costing you users and revenue every single day?
I specialize in React Native Expo mobile app development, app creation, and bug fixing building production ready iOS and Android apps with clean code, Firebase integration, and seamless App Store and Google Play submission.
What I offer:
- React Native Expo mobile app development for iOS and Android
- App creation from scratch UI design, logic and full build
- Firebase, Supabase & REST API integration
- User authentication email, Google & Apple login
- React Native bug fixing, crash fixes & performance optimization
- EAS Build & App Store and Google Play submission
- AI powered app features & RevenueCat subscription setup
- App updates, version upgrades & ongoing maintenance
Why choose me:
- 200+ React Native Expo apps built and delivered worldwide
- Clean, maintainable code you can manage yourself after delivery
- Bug fixes delivered fast most resolved within 2448 hours
- Clear communication and honest timelines no surprises ever
Stop losing users to a broken or underperforming React Native app.
Message me today let's build or fix your app the right way.
Get to know Sander Joreon
Sander Joreon
Building Websites, Boosting Success
- FromNetherlands
- Member sinceDec 2025
- Avg. response time1 hour
Languages
Dutch, German, English
Hello, You're Welcome, I am Sander I design and develop modern, high-performing websites that help businesses stand out with a clean, professional online presence. I work across WordPress, Wix, Shopify, GoDaddy, Framer, Webflow, Squarespace, Bubble and more—building fast, responsive, and conversion-focused sites that look great on all devices. Whether you need a landing page, full website, or a redesign, I bring clarity, creativity, and reliable delivery to every project.
Have a website in mind or a functionality? Send me a message and let’s bring it to life.
Other Software Development Services I Offer
FAQ
What is React Native Expo and why should I use it?
React Native Expo lets you build one app that runs on both iOS and Android — saving time and cost. It's fast, reliable, and perfect for startups and businesses needing a production ready cross platform mobile app quickly.
Can you build a React Native Expo app from scratch?
Yes. I build complete React Native Expo apps from scratch — including UI design, user authentication, API integration, Firebase setup, and full App Store and Google Play submission. You get a fully working production ready app.
Can you fix bugs and crashes in my existing app?
Absolutely. I fix React Native Expo bugs, crashes, build failures, and performance issues fast — most resolved within 24–48 hours. I diagnose the root cause and deliver a clean fix without breaking anything else.
Do you integrate Firebase and third party APIs?
Yes. I integrate Firebase, Supabase, REST APIs, Google login, Apple login, RevenueCat subscriptions, Stripe payments, and push notifications — connecting everything your app needs to function fully and professionally.
Can you submit my app to the App Store and Google Play?
Yes. I handle complete EAS Build setup and app submission to both Apple App Store and Google Play Store — including metadata, screenshots, and fixing any rejection issues until your app is successfully published.
How long does it take to build a React Native Expo app?
A basic app takes 7–14 days, a mid complexity app 14–21 days, and a full featured app 21–30 days. Bug fixes are typically resolved within 24–48 hours. You'll receive a clear timeline before we begin.
Will my app work on both iOS and Android?
Yes. Every React Native Expo app I build is fully tested on both iOS and Android — ensuring consistent performance, smooth UI, and zero platform specific bugs before delivery.
Can you add AI powered features to my app?
Yes. I build AI powered features into React Native Expo apps — including AI chatbots, smart recommendations, automation workflows, and API integrations with OpenAI and other AI platforms.
What if I need changes after delivery?
Every project includes revisions and post delivery support. If anything needs fixing or adjusting after handover I resolve it promptly — I don't consider the job done until your app works perfectly.
How do i get started?
Message me with your app idea, existing app details, or bug description. So we can map out the right React Native Expo solution for your project before we begin.
