I will develop a full stack ai web and mobile application with custom ai integration


About this gig
Need a powerful AI web or mobile app that actually works in production? You're in the right place.
I build full stack AI web applications and AI mobile apps using modern frameworks, with deep custom AI integration LLMs, OpenAI, Claude, Gemini, and custom APIs tailored to your exact business logic.
What I deliver:
- AI web app development (Vue.js, Next.js, FastAPI, Node.js)
- AI mobile app development (Flutter, cross-platform)
- LLM & API integration (OpenAI, Claude, Gemini, REST APIs, LLM)
- AI SaaS application development with user auth & dashboard
- AI chatbot integration inside web or mobile apps
- Backend AI pipeline with database (PostgreSQL, Firebase)
- Deployment ready, clean, scalable code
Who this is for:
Startups, founders, and businesses who need a production ready AI web app or AI mobile application not a prototype, but a real product.
Why work with me:
I specialize in full stack AI development. Every app I build combines a solid backend, clean frontend, and smart AI layer that solves real problems.
Message me before ordering. Let's discuss your idea and I'll tell you exactly what's possible.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Bilal Rehman
Expert Flutter and Mobile App Developer, iOS, Android, SaaS, MVP Specialist
- FromPakistan
- Member sinceOct 2019
- Avg. response time1 hour
- Last delivery1 week
Languages
English
My Portfolio
FAQ
Can you integrate OpenAI, Claude, or Gemini API into my web or mobile app?
Yes, absolutely. I specialize in integrating all major LLMs including OpenAI (GPT-4o), Anthropic Claude, and Google Gemini into web and mobile applications. Whether you need a custom AI chatbot or an intelligent dashboard. I will connect the right AI model to your product
What tech stack do you use for AI web and mobile app development?
For web apps I use Next.js, Vue.js, and FastAPI or Node.js on the backend. For mobile I build cross-platform apps using Flutter. For AI integration I work with OpenAI, Claude, and Gemini APIs. Databases include PostgreSQL and Firebase depending on your project needs.
Can you build an AI SaaS application with user authentication and a dashboard?
Yes, this is one of my core offerings. I build complete AI SaaS platforms with user sign-up and login (auth), role-based access, a user-facing dashboard, usage tracking, and a connected AI backend. If you need subscription billing integration (like Stripe), that can also be added.
Can you work with my existing codebase or do I need to start from scratch?
Both options work. If you already have an existing web or mobile app and want to add AI features, like a chatbot, smart recommendations, or document analysis. I can integrate directly into your codebase. If you are starting fresh, I will build everything from the ground up with a clean architecture
How long does it take to develop a custom AI web or mobile application?
Timelines depend on the scope of your project. AI feature integration typically takes 3 to 5 days. A full AI SaaS application with auth, dashboard, and custom LLM pipeline usually takes 7 to 14 days. After you describe your project, I will give you a clear timeline before you place an order.
What industries or use cases have you built AI apps for?
have built AI-powered tools for SaaS founders, e-commerce businesses, healthcare platforms, legal tech, education, and internal business automation. Include AI chatbots, document summarization tools, AI content generators, smart dashboards. If you have a specific use case in mind, just message me!
7 reviews for this Gig
| (7) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
R rashid_mustafa
Repeat Client

United Kingdom
Great guy and easy to work with, keeps you updated along the way and quality of work is good. went the extra mile and configured UI with custom message boxes too which is an added bonus
B 
Seller's Response
Helpful?M 
mattsbromley1

Peru
He did amazing! Understood my project very well and delivered it on time :) I am very happy and I feel lucky to have found this seller. Definitely recommend.
B 
Seller's Response
Helpful?S salviosan
Repeat Client

Canada
It is always a pleasure to work with Bilal
Helpful?A awaissheikh1999

Saudi Arabia
The work was submitted with great quality & speed ! The seller is very professional and creative where it matters, and always coming up with better solutions!
Helpful?M 
muhamadahmed573
Repeat Client

Turkey
working hard
Helpful?
7 reviews for this Gig
| (7) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
R rashid_mustafa
Repeat Client

United Kingdom
Great guy and easy to work with, keeps you updated along the way and quality of work is good. went the extra mile and configured UI with custom message boxes too which is an added bonus
B 
Seller's Response
Helpful?M 
mattsbromley1

Peru
He did amazing! Understood my project very well and delivered it on time :) I am very happy and I feel lucky to have found this seller. Definitely recommend.
B 
Seller's Response
Helpful?S salviosan
Repeat Client

Canada
It is always a pleasure to work with Bilal
Helpful?A awaissheikh1999

Saudi Arabia
The work was submitted with great quality & speed ! The seller is very professional and creative where it matters, and always coming up with better solutions!
Helpful?M 
muhamadahmed573
Repeat Client

Turkey
working hard
Helpful?

