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I will build an ai powered mobile app with gpt and voice features
Marcos C.
About this gig
Want to add real AI to your mobile app? I build AI-powered apps for iOS and Android with GPT integration, smart assistants, and secure code using React Native.
I've shipped real apps live on the App Store and Google Play, including one with a GPT engine that turns natural speech into structured data. That same AI can power your product.
WHAT YOU GET
- GPT chat or smart assistant inside your app
- Features that understand and respond to user input
- Custom backend, authentication and database
- Subscriptions / in-app purchases (RevenueCat)
- Clean React Native code 100% yours to keep
- API keys secured on a backend, never exposed
WHY ME
- Real published apps on both stores, not just demos
- 20+ years in tech, full-cycle: build, publish, monetize
- Clear communication in English and Spanish
HOW IT WORKS
1. Message me your idea I'll give honest scope + a fixed quote
2. I build with regular updates
3. You get a working app + source code
Competitive launch pricing right now work with an experienced developer before rates go up.
Message me before ordering so we scope it right. Let's build something real.
Get to know Marcos C.
Marcos C.
Mobile app developer, Published on App Store and Google Play
- FromColombia
- Member sinceApr 2021
- Avg. response time1 hour
- Last delivery1 month
Languages
Spanish, English
I'm a mobile app developer who ships. I've built and published apps live on both the App Store and Google Play — with real subscriptions, custom backends, push notifications, and AI features.
I don't just hand you code. I take your idea to a working app that's published, monetized, and ready for users.
Stack: React Native + Expo (iOS & Android), Node.js + PostgreSQL, RevenueCat subscriptions, push notifications, AI (GPT, voice), and Meta Ads to drive installs.
I speak Spanish and write English. Tell me your idea — I'll tell you honestly what it takes to ship it.
My Portfolio
FAQ
Do you publish the app to the App Store and Google Play?
Yes. Publishing is included in the Full AI App package, and available as an add-on for the other packages. I upload using your developer accounts; final approval depends on Apple/Google review.
Will I own the source code?
100%. You get the full, clean React Native source code. It's yours to keep, modify, and maintain.
Can you add subscriptions or in-app purchases?
Yes. I offer RevenueCat subscriptions & in-app purchases setup as a Gig Extra, for both iOS and Android — including products configuration and sandbox testing
In what language does the AI work?
GPT-based features work in many languages, including English and Spanish. I configure it for your target audience.
What do you need from me to start?
Just your idea or a brief. Message me first and I'll give you honest scope and a fixed quote before you order.
What if Apple or Google rejects the app?
If the rejection is caused by a code or technical issue on my end, I fix it as part of your revisions. Rejections for policy, content, legal or account reasons are outside my control, but I'll guide you on what's needed.
Do you design the store screenshots and listing images?
Yes, as a Gig Extra. I design marketing screenshots with text for both App Store and Google Play — the kind that attract downloads, not just plain captures.
