You will get Code Review Mobile App Developer | Flutter Developer Mobile App Development

Name: You will get Code Review Mobile App Developer | Flutter Developer Mobile App Development
Availability: InStock

Oleg R. Oleg R.

5.0

Top Rated

Oleg R. Oleg R.

5.0

Top Rated

Project details

Platform

iOS

App Type

Native App

Development Technology

Flutter, Kotlin, Swift

App Purpose

Chat, Delivery, Finance, Health & Fitness, IoT, Lifestyle, Maps & Navigation, Medical, Productivity, Restaurant

Expertise

Cross Browser & Device Compatibility, Performance Optimization, Security

What's included

Service Tiers	Starter $500	Standard $1,500	Advanced $2,500
Delivery Time	5 days	14 days	21 days
Number of Revisions	0	0	0
Bug Investigation	-	-	-
Fix Documentation	-	-	-

5.0

40 reviews

98% Complete

(39)

1% Complete

(0)

3% Complete

(1)

1% Complete

(0)

1% Complete

(0)

Flutter Mobile App Developer needed Great job, fast delivery and always good communication trough the project. Thanks for the great collaboration

Flutter Mobile App Development - Habits tracking Working with Oleg is a great experience. The quality and service is on point. Thanks again for the smooth collaboration!

iOS App TestFlight Setup and App Store Submission To rate and efficient

Android App Amendments Solid work as always - and happy to work again on future projects with Oleg and his team.

Merchant App Updates Always a a very good experience working with Oleg's team. Very happy with the results again.

About Oleg

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Flutter Mobile App Development | Android iOS | AI Mobile App Developer

100% Job Success

5.0 (40 reviews)

London, United Kingdom - 12:50 am local time

Full stack mobile app developer with 15+ years of experience in Mobile App Development, specializing in Flutter, React Native, React, IOS, Swift, Android, Python, and Java.

I have successfully delivered 120+ mobile applications in different roles as flutter app developer, flutter full stack developer, flutter flow, ai mobile app developer, mobile app design, mobile ui ux designer, ios developer, android developer, react native developer, mobile game developer achieving a 5-star rating on Upwork and helping clients scale their businesses with high-performance solutions.

🚀 Flutter Mobile App Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer for Mobile app development project.
Expert in Flutter mobile app development, delivering 30+ high-performance apps with pixel-perfect UI and smooth animations. Skilled in clean architecture and comprehensive testing for robust solutions. Experienced Mobile App Developer.
🔹 Applied game mechanics for engaging experiences in mobile development where I was a Mobile Game Developer.
🔹 Integrated real-time features, secure authentication, and cloud functions as Flutter Firebase Developer.
🔹 Built seamless API integrations and data synchronization in mobile development in Flutter mobile app development as a Flutter Laravel Specialist.

🚀 iOS app developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development:
Developed and optimized 40+ iOS apps using Swift. Implemented complex features as iOS app developer, maintaining clean architecture and best practices. Leveraged extensive experience as iOS developer Swift to create intuitive user experiences and solve challenging technical problems. Collaborated with cross-functional teams as Swift iOS developer, utilizing Kotlin Swift expertise to deliver high-quality applications on time and exceed client expectations on iOS Swift smartphone platforms.

🚀 Android Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development:
Built 30+ Android apps with adaptive UI, material design, and battery-friendly performance. Expert in Android Kotlin developer, leveraging Kotlin Swift and Kotlin Multiplatform for cross-platform solutions. Optimized security as Android reverse engineer and streamlined releases as Android app publisher, enhancing engagement and update efficiency.

🚀React Native Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development:
Built 20+ cross-platform apps with responsive UI and seamless sync. Expert in React Native mobile, React Native Expo, and React Native Firebase for real-time features. Optimized communication with React Native WebRTC. Crafted interactive experiences as React JS and Front End React specialist. Developed hybrid solutions as Java React expert, maximizing code reuse.

📱 Performance & Scalability: Built apps supporting 1M+ users, integrating real-time updates, gamification, and video streaming.

💰 Business Impact: Helped startups and enterprises generate $10M+ in revenue through well-optimized and engaging mobile applications.

iOS App Development Case Study 📱

Developed a high-performance iOS app using iOS Swift that achieved 5 star rating and featured status in the App Store. Implemented Flutter iOS compatibility for future cross-platform expansion while maintaining native performance and security. Supported iOS app marketing efforts with analytics implementation and App Store optimization, resulting in 35% higher user retention than industry average.
I am currently not accepting WordPress projects as I'm focusing exclusively on mobile app development.

Professional Achievements

🚀 Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆
🚀 4154 mobile app development hours on Upwork and still counting
🚀 100% Job Success in mobile app development (Client Satisfaction Ratio)
🚀 54+ mobile app development jobs completed successfully
✅ 98% of Clients Recommended working with me as with AI Mobile App Developer
✅ 80% Long-term Repeat Clients
✅ 15+ Years Of Experience in mobile app development, 6 years experience in Flutter mobile app development, 7 years experience in Swift and Kotlin, 4 years experience in React Native.
✅ High-Quality Work
✅ Cost-Effective AI Mobile App Developer
✅ Fluent English Verified
✅ 93% on-time delivery rate across all mobile app development milestones

Got an app idea that you think is ready to make a splash? Let's dive in and explore it together in a free intro call

Steps for completing your project

After purchasing the project, send requirements so Oleg can start the project.

Delivery time starts when Oleg receives requirements from you.

Oleg works on your project following the steps below.

Revisions may occur after the delivery date.

Steps

1. Code Analysis 2. Architecture Review 3. Issue Identification 4. Recommendations Report 5. Final Delivery

Review the work, release payment, and leave feedback to Oleg.

Select service tier

Starter$500

Standard$1,500

Advanced$2,500

500$

Basic code review.

Delivery Time 5 days
Number of Revisions 0

5 days delivery — Jun 10, 2026

Revisions may occur after this date.

Turn my project purchase into a donation to Oleg. No work required.

Support Oleg directly by donating the cost of this project. They won't have to deliver any work or incur any fees. See FAQs

We will waive all freelancer service fees for Oleg when you purchase this project as a donation or for a project deliverable.

You will get Code Review Mobile App Developer | Flutter Developer Mobile App Development

Let a pro handle the details

Let a pro handle the details

Project details

Platform

App Type

Development Technology

App Purpose

Expertise

What's included

FH

FH

BT

CY

CY

About Oleg

Flutter Mobile App Development | Android iOS | AI Mobile App Developer

Steps for completing your project

After purchasing the project, send requirements so Oleg can start the project.

Oleg works on your project following the steps below.

Steps

Review the work, release payment, and leave feedback to Oleg.

Select service tier

500$