You will get a high-performance Flutter mobile app for iOS & Android
Top Rated

Project details
Flutter App Development for iOS & Android | Cross-Platform Mobile Apps with Firebase”
Looking for a **high-performance Flutter app developer** to build your **iOS and Android mobile app** from a single codebase? I create **cross-platform apps** that are **responsive, scalable, and optimized** to deliver an exceptional user experience.
**Services include:**
• Flutter app development for **iOS & Android**
• Firebase integration (Auth, Firestore, Notifications)
• API & third-party service integration
• Mobile UI/UX design for **better user engagement**
• App Store & Google Play submission guidance
Boost your business with a **custom Flutter app** that works **seamlessly across platforms** and is **built for speed, performance, and growth**.
Looking for a **high-performance Flutter app developer** to build your **iOS and Android mobile app** from a single codebase? I create **cross-platform apps** that are **responsive, scalable, and optimized** to deliver an exceptional user experience.
**Services include:**
• Flutter app development for **iOS & Android**
• Firebase integration (Auth, Firestore, Notifications)
• API & third-party service integration
• Mobile UI/UX design for **better user engagement**
• App Store & Google Play submission guidance
Boost your business with a **custom Flutter app** that works **seamlessly across platforms** and is **built for speed, performance, and growth**.
Platform
AndroidApp Type
Hybrid AppDevelopment Technology
Flutter, React NativeApp Purpose
Dating, Entertainment, Education, Health & Fitness, Lifestyle, News, Productivity, Restaurant, Shopping, TravelExpertise
Design, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$299
|
Standard
$999
|
Advanced
$2,499
|
|---|---|---|---|
| Delivery Time | 10 days | 18 days | 30 days |
Number of Revisions | 0 | 2 | 4 |
Number of Mobile Operating Systems | 2 | 2 | 2 |
App Store Upload | - | ||
App Icon Design | - | ||
Splash Screen | |||
Ad Network Integration | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$100 - $500
Additional Revision
+$100Frequently asked questions
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I’ve had the pleasure of working with Kusum for over a decade now, and I can confidently say she is one of the most talented and reliable freelancers I’ve ever hired. She has handled our website management, SEO, SMO, and copywriting with exceptional skill and consistency.
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Highly recommended!
Her work ethic is outstanding, always proactive, detail-oriented, and fully committed to delivering quality results. Kusum doesn't just complete tasks; she brings insight and strategy that have truly made a difference in our digital presence and business growth.
What sets her apart is her professionalism, timely communication, and ability to adapt to new challenges with ease. I’m genuinely happy with her services and deeply value this long-standing working relationship.
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About Kusum
Flutter Expert | Ex-American School London | Top Rated Upwork
100%
Job Success
Jaipur, India - 12:19 am local time
𝟏𝟓𝟓𝟎𝟎+ 𝐇𝐨𝐮𝐫𝐬 | 𝟏𝟎𝟎% 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐑𝐚𝐭𝐞 | 𝐓𝐨𝐩 𝟑% 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 | 𝟏𝟖+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞
About me:
Hi, I’m Kusum, a Top Rated Full Stack Developer & Mobile App Specialist with over 18 years of hands-on experience in designing, developing, and scaling digital solutions for global businesses.
I help businesses, startups, and enterprises turn their ideas into high-performing websites and mobile apps that:
✅ -Boost user engagement (up to 50% improvement)
✅ -Scale effortlessly with clean and maintainable code
✅- Rank naturally on Google, often within the first weeks of launch
I’m not just a developer ; I’m your technology partner who combines technical expertise with business insight to deliver solutions that drive results.
𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:-
𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 & 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
𝐍𝐚𝐭𝐢𝐯𝐞 𝐢𝐎𝐒 (𝐒𝐰𝐢𝐟𝐭) & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 (𝐊𝐨𝐭𝐥𝐢𝐧)
𝐂𝐫𝐨𝐬𝐬-𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦: 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 & 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞
𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: 𝐑𝐞𝐚𝐜𝐭, 𝐀𝐧𝐠𝐮𝐥𝐚𝐫,𝐁𝐨𝐨𝐭𝐬𝐭𝐫𝐚𝐩,𝐇𝐓𝐌𝐋𝟓, 𝐂𝐒𝐒𝟑, 𝐉𝐒
𝐁𝐚𝐜𝐤𝐞𝐧𝐝: 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐏𝐇𝐏 (𝐋𝐚𝐫𝐚𝐯𝐞𝐥, 𝐏𝐡𝐚𝐥𝐜𝐨𝐧), 𝐑𝐄𝐒𝐓 𝐀𝐏𝐈𝐬
𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: 𝐌𝐲𝐒𝐐𝐋, 𝐌𝐨𝐧𝐠𝐨𝐃𝐁, 𝐒𝐐𝐋, 𝐅𝐢𝐫𝐞𝐛𝐚𝐬𝐞
𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐂𝐌𝐒 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬:-
Shopify, WooCommerce, Magento, Wix
Custom WordPress Development
Multilingual & SEO-optimized websites
𝐔𝐈/𝐔𝐗 & 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐃𝐞𝐬𝐢𝐠𝐧:-
Figma, Canva, Adobe XD, Photoshop, Illustrator
Conversion-focused designs that enhance user experience
𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐚𝐭𝐚:-
AWS, Azure, Google Cloud, Snowflake, Tableau for Data Insights
Real-time, scalable architectures
𝐌𝐲 𝐀𝐜𝐡𝐢𝐞𝐯𝐞𝐦𝐞𝐧𝐭𝐬:-
𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐀𝐩𝐩: 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐞𝐝 𝟏𝟎,𝟎𝟎𝟎+ 𝐝𝐨𝐰𝐧𝐥𝐨𝐚𝐝𝐬 𝐢𝐧 𝐭𝐡𝐞 𝐟𝐢𝐫𝐬𝐭 𝐦𝐨𝐧𝐭𝐡
Custom CMS: Sold to 300+ schools in 2 years
Enterprise Apps: Led mobile and web app development for education, travel, and transportation sectors
𝐒𝐄𝐎 + App Growth: Consistently boosted organic traffic and app engagement for clients across US, UK, and Australia
𝐂𝐚𝐫𝐞𝐞𝐫 𝐉𝐨𝐮𝐫𝐧𝐞𝐲:-
Head of Web Development at a medium-sized firm, developed a school CMS (sold 300+ licenses)
American School in London: 8 years building dynamic websites, event registrations, and database-driven applications
Full-Time Freelancer on Upwork: Delivered hundreds of successful projects to clients across the globe
I hold a Bachelor’s Degree in Communication Studies (Multimedia & Radio) from Auckland University of Technology, graduating top of my class.
*Tools & Technologies I Use*:-
Languages & Frameworks:
𝐍𝐨𝐝𝐞.𝐣𝐬 | 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬 | 𝐏𝐇𝐏 | 𝐋𝐚𝐫𝐚𝐯𝐞𝐥 | 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 | 𝐒𝐰𝐢𝐟𝐭 | 𝐊𝐨𝐭𝐥𝐢𝐧 | 𝐀𝐧𝐠𝐮𝐥𝐚𝐫 | 𝐇𝐓𝐌𝐋𝟓 | 𝐂𝐒𝐒𝟑 | 𝐉𝐒 | 𝐒𝐐𝐋 | 𝐌𝐨𝐧𝐠𝐨𝐃𝐁 | 𝐅𝐢𝐫𝐞𝐛𝐚𝐬𝐞
Applications & Tools:
𝐅𝐢𝐠𝐦𝐚 | Photoshop | Canva | Illustrator | 𝐓𝐚𝐛𝐥𝐞𝐚𝐮 | MySQL | 𝐒𝐧𝐨𝐰𝐟𝐥𝐚𝐤𝐞 | 𝐆𝐢𝐭 | Notepad (yes, sometimes old-school!)
CMS & Platforms:
WordPress | Magento | Joomla | Shopify | WooCommerce | Webflow
*Industries I Serve*:-
-Education & E-learning
-Travel & Transportation
-E-commerce & Retail
-Entertainment & Media
-Technology & SaaS
𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞:-
-Top Rated & Reliable:
𝟏𝟓𝟓𝟎𝟎+ hours & 100% success on Upwork
-Proven Track Record: Apps and websites that perform, convert, and scale
-Transparent & Communicative: I listen first, and deliver with clarity
-Strategic Approach: Every line of code or design decision aligns with your business goals
Let’s Collaborate:-
I’m at my desk most of the day and happy to offer a no-obligation, free project consultation.
Message me today and let’s discuss how I can help your project succeed with unmatched quality and performance.
Steps for completing your project
After purchasing the project, send requirements so Kusum can start the project.
Delivery time starts when Kusum receives requirements from you.
Kusum works on your project following the steps below.
Revisions may occur after the delivery date.
Project Completion Process: Phase 1
1. You provide the necessary details and it will be processed. 2. Design draft will be shared of your app
Phase 2
3. Whole App prototype will be provided 4. Final MVP will be shared.