Cross-Platform Library & Portfolio Apps

@joomextensions

Hi, one Flutter codebase fits your need for iOS, Android and web with consistent UI. Library app: cataloguing with ISBN scan, check-in/check-out, user accounts, due-date reminders by push and email, and simple admin controls. Portfolio tracker: live stock prices from a market data API, auto-updating holdings, P&L and allocation charts, and configurable price alerts. Both share a Laravel API with role-based access, encrypted data and clean dashboards. I can propose branding for both. Since two full apps are a larger scope than the posted budget, I suggest starting with one as phase 1. Which market data source and exchange (NSE/BSE or US) do you need? Regards, Harsh Thoriya

@jafarali14

Hi, I can build both production-ready applications for your library management and real-time stock portfolio tracking requirements, with a shared cross-platform architecture to keep development and maintenance costs under control. For the library application, I can implement: • Book catalog and search • User accounts and authentication • Check-in/check-out management • Due-date reminders and notifications • Basic admin controls • Responsive web and mobile experience For the portfolio application: • Live market data integration • Automatic portfolio/holding updates • Basic analytics and performance views • Configurable push notifications • Secure role-based access • Clean real-time dashboards I can use Flutter or React Native based on the API requirements and final technical needs, while keeping performance smooth across iOS, Android and modern browsers. I’ll focus on reusable components, reliable API integration, secure data handling, responsive UI and clean documentation. Both applications will be properly tested before deployment. Deliverables will include source code, deployable builds, basic admin panels, installation documentation and an initial post-launch support period. I’m ready to discuss your preferred stack, APIs, data sources and timeline and can start immediately. Best regards, Jafarali

@pinkeegupta

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)

@Arunmohan001

Hi, I can build both applications using Flutter with a shared codebase for iOS, Android, and web, keeping development and maintenance costs low. I can develop the library system with cataloguing, check-in/out, accounts, reminders, and admin controls, plus the portfolio tracker with live market data, analytics, holdings, and alerts. I’ll focus on clean architecture, secure authentication, role-based access, responsive dashboards, and smooth performance across devices. I’ll provide complete source code, tested builds, admin panels, documentation, deployment guides, and post-launch bug support. I can also review your requirements first and propose a practical architecture, timeline, and reusable components that fit your budget.

@Jennycreation

Hello Sir, I have already worked on similar types of website and software development projects and I am confident that I can successfully handle your project. I am a full-time freelancer with **17+ years of experience** in web development, software development, automation, and API integrations. My expertise includes: * Android app development * ASP.NET C# web and software development * Python automation and web scraping (Amazon, Instagram, Facebook, Google Maps, LinkedIn, Telegram, and other custom scraping solutions) * JavaScript, jQuery, AJAX, Bootstrap, HTML5 * Microsoft SQL Server database development * Payment gateway integration * SMS, Email, Banking, Financial, and Insurance API integration * Custom automation bots and workflow automation software I focus on delivering **high-quality, scalable, and reliable solutions** with clean code and long-term support. Please contact me in private chat so we can discuss your requirements in detail. I can also show you a **demo of similar projects** I have completed. Looking forward to working with you. Thanks & Regards

@ssquare489

For these two applications, I’d use a shared architecture and reusable UI/authentication components while keeping the library and investment domains isolated, so the lean budget doesn’t result in tightly coupled products that become difficult to maintain. I’d recommend Flutter for iOS, Android, and web, backed by Node.js/NestJS and PostgreSQL. My priorities would be scalability and maintainability: the library can use straightforward transactional APIs for catalogue, lending, users, reminders, and admin workflows, while the portfolio product uses WebSockets for live prices, background holding calculations, configurable alerts, and role-secured dashboards. Shared components can reduce duplicated development without compromising either product’s UX. I can own UX/UI, architecture, development, testing, deployment, store builds, admin panels, documentation, and initial post-launch support. A relevant project is our live stock-market analysis platform, where we integrated the GDFL WebSocket API to stream market data into real-time analytical dashboards.

@ManojChauhan111

Dear Sir, I hope this message finds you well. I am a Full-Stack Developer with 8+ years of experience in Flutter and Laravel, specializing in building high-performance mobile applications and scalable web solutions. I have extensive expertise in developing cross-platform applications with Flutter and robust backend systems, RESTful APIs, and web applications using the Laravel framework. My experience includes clean architecture, state management, responsive UI/UX, database design, authentication, payment gateway integration, third-party API integration, and performance optimization. I focus on writing clean, maintainable, and scalable code that delivers reliable and efficient solutions. I can complete your project within the agreed timeframe and budget. Having worked on a wide range of mobile and web projects, I am confident in my ability to deliver a high-quality solution that meets and exceeds your expectations. Please let me know if you would like to discuss your project further. I would be happy to chat and answer any questions you may have. Best regards.

@GobindSawarn

As an experienced full-stack developer with a deep understanding of mobile and web technologies, including Android, Flutter, iOS Development, and React Native, I am uniquely positioned to deliver high-quality, efficient cross-platform applications aligned exactly with your requirements. My work reflects clarity, functionality, and speed which will ensure the reliability and smoothness you're seeking in both the library and portfolio apps. Additionally, my expertise in API integrations using payment gateways like Stripe, PayPal, and Twilio will be invaluable for handling sensitive financial data for your investors. Though you haven't explicitly mentioned it, my knowledge of trading and finance tools such as MetaTrader 4/5 further enhance my ability to build a real-time stock portfolio tracking system that pulls live market data and updates holdings automatically. With a strong familiarity with cloud services like AWS and Azure coupled with my proficiency in databases (MySQL, PostgreSQL), I am well-versed in securing data storage while providing reliable access across devices. Finally, my commitment to transparent timelines and post-launch support makes me the ideal fit for this project. Let's work together to bring your ideas to life within your budget!

@RohanBoy17

I'm Rohan, and I specialize in developing responsive, user-friendly, and high-performing digital solutions like the ones you require for your Cross-Platform Library & Portfolio Apps project. With my proficiency in Mobile App Development, PHP, and Web Development, I can build reliable and intuitive apps that work seamlessly on iOS, Android, as well as modern browsers. One of my key strengths is ensuring compatibility across devices while maintaining a single codebase to keep maintenance and costs under control—something essential for your project requirements. From a security standpoint, I have a deep understanding of safeguarding data via role-based access and deploying clean dashboards for Admin. My past experience in cross-platform development adopting frameworks like Flutter and React Native will greatly benefit this project. What differentiates me from others is not just meeting client expectations but exceeding them. As a highly communicative and results-oriented professional, I'm dedicated to delivering on time with top-notch performance. I've included examples of my past projects on similar lines along with measurable results in the proposal form to showcase my capability. Working together, we can turn your ideas into reality within your lean budget! So let's get started on creating these remarkable internal library & portfolio apps together!

@Mayurisharma7619

Dear Client, I can build your cross-platform Library Management and Stock Portfolio Tracker applications for iOS, Android, and web with a single reusable codebase where possible. I have 6+ years of experience in application and web development and can work with Flutter, React Native, or the most suitable stack based on your requirements. I can develop library cataloguing, check-in/check-out, user accounts, reminders and admin controls, along with live portfolio tracking, market data, analytics and alerts. I can share relevant work links, screenshots and project details in the chat box. Looking forward to your response on chat box. Thanks.

@joharashu0

As a seasoned developer with comprehensive skills in web and mobile app development, I am confident that I can deliver your desired cross-platform library and portfolio apps. My expertise includes both Flutter and PHP - two technology stacks that perfectly align with your project needs. I have created numerous production-ready apps on these platforms, leveraging their cross-compatibility to optimize both performance and cost for my clients. My approach has always been focused on delivering clean, maintainable architectures with secure backend systems/APIs, intuitive user interfaces, and reliable functionalities. We can certainly incorporate the cataloguing, check-in/check-out, user accounts, due-date reminders for the library app—as well as live market data tracking, automated updates, basic analytics, configurable alerts for the portfolio tracker—while prioritizing data security and role-based access. I understand the importance of maintaining your lean budget while ensuring exceptional quality. Rest assured, my solutions would be pragmatic,reusable,and cost-effective—never compromising on performance or reliability. Throughout the project, I'll maintain clear communication and provide regular progress updates so you're always aware of our progress. Let's leverage my skills to not just meet but exceed your expectations in building these two apps!

@michela542

Hi There , Good afternoon! I am skilled mobile computer programmer with skills including Web Development, Flutter, React Native, Android, iOS Development, PHP, Mobile App Development and iPhone. Please contact me to discuss more regarding this project. Thanks & Regards

@prachia77

Hi, I can build both applications using a shared cross-platform architecture to keep development and long-term maintenance practical. I’d recommend Flutter for iOS, Android and web, with reusable components, a secure backend/API layer, role-based authentication and a scalable database. For the library app, I can implement catalog management, user accounts, check-in/check-out, due-date reminders and admin controls. For the portfolio tracker, the architecture can support live market-data APIs, holdings synchronization, analytics and configurable alerts. I’ll focus on responsive UI, secure data handling, clean dashboards, API integration, testing and clear documentation. The work can be structured in milestones so the core MVPs are validated before expanding features. Best Regards, Webix Infotech India Pvt. Ltd.

@Riteshn48

I have already work on a similar project named AssetLib Dual for one finance and education group. In that project i make library management app with check in out reminders and portfolio tracker with live data alerts same like this in cross platform. Both apps was working smooth on mobile and web there. I have 4 years experince in cross platform app development flutter react native library systems and stock portfolio trackers. I have already developer more than 60 projects including dual mobile web apps with live data and admin panels. Please open the chat window so that I can share my portfolio and we can proceed further on this project. In addition to your project needs, I'll provide you with clean source code, free bug patches, and maintenance. I am awaiting your positive response. Regards, Ritesh

@nakabirik

Hello I'll be straight with you: two production apps with live market data, role-based access, and mobile + web in one codebase is not a ₹1,000 build. At that budget the honest move is a small, real MVP — one app, one flow — not both, or the result will be a demo that breaks under real users. If you want to start small, I'd suggest the portfolio tracker first in React Native (Expo) so it runs on iOS, Android and web from one codebase. Live quotes via a free market API, holdings table, one alert type, and a simple login. That's a genuine, deployable slice — and the architecture carries over when you add the library app later. Two questions before I quote properly: is this a paid commercial product or an internal tool, and what's the realistic total budget you can put behind it? Looking forward to working with you

@JureJovic

Here! I’m a Full Stack Web Developer specializing in both Backend & Frontend development with over 6 years of professional experience and more than 600 completed very modern projects, 100% satisfied clients. I literally build all types of websites, including all kinds implementations, systems and applications. I can help you with: • Business and corporate websites • E-commerce stores and online shops • Landing pages and portfolio websites • Booking and reservation platforms • Custom web applications • Admin dashboards and management systems • User registration, login and authentication systems • REST API development and integrations • Payment gateway integrations • Database-driven websites and applications • Responsive and mobile-friendly development • Website performance, security and optimization • Custom features developed specifically for your business My technology stack includes HTML, CSS, Bootstrap, Flexbox, JavaScript, React, C#, ASP.NET Core, REST APIs and Microsoft SQL Server. I want to create a very modern and professional project that looks excellent wich also performs smoothly for absolutely every business and fulfills the client needs. I’m ready to discuss your project and help you turn your idea into a high quality professional project. Best regards, Jure

@ApieTech

Two products here, not one - a library system (catalogue, check-in and check-out, accounts, due-date reminders, admin) and an investor portfolio tracker on live market data with configurable alerts. Recommendation: Flutter for iOS, Android and web from one codebase, Node.js and MongoDB behind both, with a shared auth, roles and admin layer reused across the two apps. That shared layer is where cost genuinely comes down - accounts, RBAC and dashboards get built once rather than twice. The portfolio side is the riskier half and worth being straight about. Live market data means a paid feed, plus careful handling of stale ticks and after-hours states so alerts never fire on a bad price. That decision is best made early because it is the main recurring cost. Our work: Chalo Bharat Dekhen is live on both stores at 4.8 stars, GigRoot runs role-based dashboards across web, iOS and Android, and we built a crypto trading platform for BrightFunded, so market feeds are familiar ground. Freelancer does not allow links in bids, so these sit on our profile. Team of 20. One question: which market data provider, and does the budget cover its subscription? That answer shapes this more than anything else. - APIE Technologies

@anas389

Good day! Based on your requirements, I understand that you're looking to build two cross-platform applications from the ground up: an internal library management app and a real-time stock portfolio tracker. Both should work across iOS, Android, and modern browsers with a shared codebase where practical, while maintaining reliable performance, secure role-based access, and consistent dashboards. I can recommend a cross-platform approach such as Flutter or React Native with a suitable web architecture, focusing on reusable components to keep development and future maintenance practical within your budget. Q1: Do you already have a preferred source/API for the live stock market data? Q2: How many user roles and admin functions do you need for each application? Q3: Do you have any preferred technology, hosting environment, or authentication system for the backend? I would love to schedule a meeting or have a detailed conversation about the project to clarify some concerns about the project, this way I can demonstrate my capabilities perfectly and suggest the best result possible. The budget and payment terms can be discussed and mutually finalized after reviewing the complete requirements and scope of work. Thank You!

@indreshpnk

Hello, I understand you need two production-ready cross-platform applications: an internal library management system and a real-time stock portfolio tracker, both supporting iOS, Android, and modern browsers. The goal is a reliable, secure, consistent experience with a shared codebase where practical. Here’s what I can provide: • Build library cataloguing, check-in/out, accounts, due-date reminders, admin controls, and role-based access. • Develop portfolio tracking with live market data, automated holdings updates, analytics, and configurable alerts. • Use React Native/React or Flutter with reusable components, responsive dashboards, secure APIs, testing, deployment, documentation, and post-launch fixes. I bring over 4+ years of experience in React, JavaScript, Node.js, APIs, databases, authentication, AWS, and full-stack application development, focusing on scalable and maintainable solutions. Just to clarify a few things: • Which market/data provider will supply the real-time stock data? • Do you have a preferred cross-platform stack, or should I propose one based on the required web/mobile features? Please come to the chat box to discuss more about your project. Best regards Indresh Kushwaha