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$
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I will build a custom mobile app for ios and android
Paulina B
About this gig
Welcome to your one-stop shop for modern, high-performance mobile app development.
Are you looking to build a high-converting mobile app from scratch, turn your business idea into an MVP, or integrate cutting-edge AI functionality into an existing application? You've found the right Gig.
I specialize in building custom cross-platform mobile apps for both iOS and Android using Flutter and React Native, combining seamless user experience with robust backend architectures.
What I Can Build For You:
- Custom iOS & Android Apps: Cross-platform development with sleek, intuitive UI design.
- AI Model & Chatbot Integration: Connect OpenAI (ChatGPT, GPT-4o), Google Gemini, or custom LLMs to your app.
- Core Features: User Authentication (Firebase, Auth0), Real-time Databases, Push Notifications, and Payment Gateways.
- Bug Fixes & Feature Additions: Update, redesign, or fix issues in your existing mobile app.
Why Work With Me?
- Clean Code & Architecture: Well-documented, scalable code structure (Source Code included).
- Cross-Platform Efficiency: Native-level performance for both App Store and Google Play Store.
- Clear Communication: Regular progress updates throughout the development lifecycle.
Get to know Paulina B
Paulina B
Business Engineering Student
- FromPoland
- Member sinceAug 2026
Languages
English, Polish, Spanish
I am a high-achieving Business Engineering student with strong academic results and leadership experience in entrepreneurship and international debates. I have a proven track record in project management through my award-winning non-profit initiative and corporate mentorships with firms like JPMorgan Chase. I am dedicated to developing technology-driven and strategic business solutions in a multilingual environment.
FAQ
Do you provide the full source code upon completion?
Absolutely. Once the project is completed and approved, you will receive full ownership and access to the complete, well-documented source code repository.
Will the app work on both iOS and Android platforms
Yes! Using cross-platform frameworks like Flutter or React Native, I write a single, optimized codebase that delivers fully functional native performance for both Apple iOS and Google Android.
What do I need to provide before we start the project?
To get started, please provide your app requirements or wireframes (Figma/Adobe XD if available), preferred branding guidelines (logo, colors), and any specific third-party API keys (such as OpenAI or Google Firebase) needed for your app
Do you offer post-launch support and maintenance?
Yes, every package includes a post-delivery support period to fix any unexpected bugs or logic issues. Extended maintenance packages are also available upon request.
