Danish A.
Flutter Mobile App Developer | iOS, Android, Firebase, AI & APIs
Need a Flutter, iOS or Android app built, repaired or prepared for launch? I help startups and businesses turn app ideas and unstable codebases into reliable mobile products, with clean UI, secure API integrations, Firebase and store-ready releases. I can support you with a complete mobile application or step into an existing project to fix bugs, improve performance, integrate new features and prepare the app for release. What I can help you with: • Flutter mobile app development for iOS and Android • Native iOS development using Swift and SwiftUI • Native Android development using Kotlin and Java • Mobile app bug fixing and troubleshooting • MVP development for startups and growing businesses • REST API and third-party API integration • Firebase Authentication, Firestore and Realtime Database • Push notifications and in-app messaging • OpenAI and AI-powered feature integration • Google Maps, location services and live tracking • Payment gateway and subscription integration • Chat, booking and real-time application features • UI improvements and responsive mobile design • App performance, stability and code optimisation • App Store and Google Play submission support I have worked with different types of mobile products, including: • Ride-booking and transportation apps • Food delivery applications • Social networking and chat apps • Appointment and service-booking platforms • E-commerce applications • Location-based mobile apps • Custom business applications When working on an existing application, I first identify the actual cause of the problem before changing the code. You receive a clear explanation of the issue, the proposed solution and regular progress updates throughout the project. My focus is on building mobile applications that are stable, maintainable and practical for real users. Whether you need one urgent bug fixed, a new feature added or a complete MVP developed, I can help move your project forward. Send me a message with your requirements, existing app details or technical issue, and I will suggest the most practical next step.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $227
Billed in all: $5,151$5.2k
$57 in the last 6 months
Across 17 contracts
Earnings, last 30 days
Read once a week before Oct 26, 2026, daily since. Dotted: longer than usual between two readings. Hatched: over two weeks without one.
Skill rankings: Top 24% in Java
Ranked by MRR among everyone on Upwork with the skill.
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- #350SwiftUI951 freelancers · 🇬🇧 #8Top 37%🇬🇧#8 of 22
- #816Dart2,324 freelancers · 🇬🇧 #8Top 35%🇬🇧#8 of 34
- #921Kotlin3,021 freelancers · 🇬🇧 #17Top 30%🇬🇧#17 of 56
- #1,033Swift3,634 freelancers · 🇬🇧 #25Top 28%🇬🇧#25 of 83
- #1,757RESTful API6,064 freelancers · 🇬🇧 #21Top 29%🇬🇧#21 of 97
- #2,027Java8,313 freelancers · 🇬🇧 #31Top 24%🇬🇧#31 of 155