I will do cross platform app development with flutter


Level 2
About this gig
Need a professional cross-platform app for Android and iOS? You're in the right place!
I'm Oscar, a Flutter specialist with 30+ projects delivered and a 4.7 rating from clients worldwide. I build robust, beautiful apps from a single codebase so you launch on both Android and iOS faster and for less.
What I offer:
Android + iOS apps (one Flutter codebase)
Firebase (auth, Firestore, storage)
REST API & third-party integrations
Push notifications & real-time features
Figma to Flutter, pixel-perfect
Bug fixing & performance optimization
Google Play & App Store deployment
Why me:
- 30+ international projects, 100% satisfaction
- Real Flutter + Firebase specialist (not no-code)
- One codebase = lower cost, faster delivery
- 30 days of support included
- Clear communication in English & Spanish
Use cases: delivery, e-commerce, social, education, inventory & community apps and more.
You get a testable build at the end of each phase, and you only pay once you approve.
Ready to launch? Message me before ordering to discuss your project!
Get to know Oscar Tech
Developer iOS And Android Apps with Firebase
Level 2
- FromVenezuela
- Member sinceMar 2024
- Avg. response time1 hour
- Last delivery2 days
Languages
Spanish, English
My Portfolio
Other Mobile App Development Services I Offer
FAQ
What do you need to get started?
Just your app idea and any references or features in mind. We define the scope together before you order that's why I ask you to message me first.
Why cross-platform with Flutter?
One clean codebase runs on both iOS and Android faster to build, cheaper to maintain, and with a native look and feel on each platform.
Do you design the app too?
Yes. Design and development come together a professional UI/UX so your app looks as good as it works.
Do you charge upfront?
No. I work in phases and deliver a testable build at the end of each one. Fiverr holds the payment and releases it only after you approve.
Will I get the source code?
Yes, full source code is included in the Standard and Premium packages.
Can you publish to both stores?
Yes Play Store and App Store submission is included in Standard and Premium (you'll need the developer accounts), or I can guide you through it.
What if I need changes or a bigger app?
Each package includes revisions and I offer ongoing support. For larger, multi-phase apps I send a custom milestone-based offer.

