Cross-Platform Sales Offer App

@kamran2012

Hello, I can build a cross-platform mobile app (Flutter preferred for consistent UI/UX across iOS and Android) that lets your team generate professional sales offers on the spot. The back end will include a lightweight, secure admin console where you can upload/replace the Excel master file, and the app will parse that data fault-tolerantly into selectable inventory, payment plans, and discounts. On the front end, salespeople will choose the unit, currency, and payment plan, and the system will compile everything into a branded PDF using your logos and imagery, then invoke the phone’s native share sheet for quick WhatsApp sending without leaving the app. Questions: – Do you already have a hosting preference for the admin console (AWS, GCP, Azure, or simple VPS)? – Should the Excel upload accept only a strict schema, or do you want some flexibility in column names/structure? – Do you need multilingual support (EN/AR, EN/FR, etc.) for the sales PDFs, or is one language sufficient at launch? I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/kamran2012 Looking forward to potentially working together on this project. Thanks and Best regards, Kamran.

@ahmedmubshar1

Hi, How often will you be refreshing that Excel file daily during active sales, or only when a new project kicks off? That frequency decides whether I design the admin as a simple upload panel or with version tracking. For cross-platform, I’d lean on Flutter for consistent UI and fast PDF rendering. Libraries like pdf (for dynamic layouts and branded assets) and share_plus (for native WhatsApp share) work smoothly. Excel parsing can be handled with excel or xlsx packages, hardened so faulty rows don’t crash the app. You’ll get an admin console for uploads, a salesperson-friendly app for unit selection, and branded PDFs generated in seconds all packaged for iOS and Android. With repo access and assets, I can have a test build in your hands within a few weeks. Let’s make sure every client walks out of the office holding an offer they can’t forget. Ahmed

@HamAbbasi00

⚠️ IF YOU'RE NOT HAPPY YOU DON’T PAY ⚠️ Hi, I am experienced Full stack developer, I checked your requirements, I am ready to develop Cross-Platform Sales Offer App and would be happy to discuss those with you. After our conversation, we can start our journey from there Regards

@ciss26

Hello there Hope you are doing well as you are looking for a "Build a SALES OFFER APPLICATION " so will make the same as you want , I have already develop and Design the so many Application , - I will use latest technology to develop your Application - I will share daily update with you - I Will deliver your project within timeline - After project completion will share complete source code - I will provide 1 year support our develop work - I have 10+ year experience in Web & App development - I will make the 100% responsive design , fast loading , SEO friendly and all - I will provide you super admin panel there you can manage the whole thing Please initiate the chat so will discuss together and all Thanks & Regards Dheeraj K.

@ahmedaaalnaasan

We are a seasoned development team with 10+ years of experience delivering cross-platform mobile apps that are fast, stable, and business-focused. We propose building your sales-offer application using Flutter for a single codebase across iOS & Android, ensuring clean UI and smooth performance. Key Features: Secure admin console for Excel uploads & parameter management. Reliable Excel parsing with fault-tolerant validation. Automated PDF generation (with logos, floorplans, payment breakdowns). Native WhatsApp integration via share sheet for instant client delivery. Clear, maintainable source code + deployment guide. Tech stack & tools: Flutter + Firebase (auth & storage). Dart libraries for Excel & PDF generation (e.g. excel, pdf packages). Native APIs for WhatsApp sharing. Timeline: First test build ready in 3–4 weeks, with refinements after feedback. Our focus: speed, reliability, and real-world usability

@a4logic

Hello, With over a decade of experience, our software company has been at the cutting edge of cross-platform application development, including but not limited to Flutter and React Native. Given your need for a reliable, similar approach, we are tailor-made to deliver the clean, efficient and fault-tolerant application you require. Our extensive use of C# Programming ensures clean UI design, while adept PDF and Excel file handling along with secure data management gives us an edge above others. The core strength of your project is in pulling out required but complex Financial and imagery data for customer levels that creates a calculated difference in customers profit making decision. Our company's unmatched excellence in handling similar jobs will ensure accurate parsing of your Excel files providing a fast yet accurate running of your inventory. We have in-house PDF libraries that are highly regarded and when it comes to maintaining visual consistency, speedy execution and high-quality output will make all your business offers look professional. Incorporating WhatsApp without taking users away from the app empowers your team's communications. We have done this before and know what works best for Android and iOS platforms respectively. Given these competencies, selecting us as your partner ensures a streamlined experience in this critical sales process for your team. We guarantee to provide production-ready builds, a lightweight Thanks!

@DeveloperStation

Hi Shujauddin, We’ve built similar apps that let sales teams create dynamic proposals using Excel data, generating branded PDFs for WhatsApp sharing. We also developed a secure admin panel for uploading Excel files and managing project data. For your project, I recommend using Flutter with a Node.js backend. This combination allows us to create a fully optimized app with a fast, lightweight backend. We can also integrate a dedicated PDF library to ensure high-quality outputs. Let’s schedule a 10-minute call to discuss your requirements in detail and see if I’m the right fit for your project. I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best, Adil

@rbtech1984

Hello There!!! ⭐⭐⭐⭐( Cross-Platform Sales Offer App )⭐⭐⭐⭐ ⭐⭐⭐⭐ You need a cross-platform app where sales teams can quickly build branded offers from live inventory data and instantly share them as PDFs via WhatsApp. The focus is reliability, clean UI, dynamic PDF generation, and fault-tolerant Excel parsing rather than flashy design. ⭐⭐⭐⭐ Key points * Cross-platform build in Flutter or React Native for iOS and Android * Lightweight admin console for secure Excel uploads and edits * Fast, branded PDF generation with images, floorplans, and financial details * Native WhatsApp share integration without leaving the app * Clear, maintainable source code and deployment guide Execution Plan I propose Flutter for consistent UI/UX across platforms and easy PDF handling. For Excel parsing, packages like syncfusion\_flutter\_xlsio or similar ensure safe data imports. PDF generation will use flutter\_pdf or pdf-lib with custom branding support. WhatsApp integration will rely on platform channels for seamless native share sheet access. Backend will be a lightweight Node.js or Laravel console to handle Excel uploads and validations. A test build can be ready within 2–3 weeks depending on asset readiness. With 9+ years of mobile development experience, I focus on reliability, clear communication, and quality results. Excited to help streamline your sales process—shall we start with a test build plan? Best Regards, Farhin B.

@OmarFarukBD

I AM NOT LIKE OTHER 99% OF SELLERS. YOU WILL PAY ONLY AFTER THE WORK IS COMPLETE, AND I ONLY FOCUS ON EXPLAINING WHAT I UNDERSTAND. PLEASE READ IT. I am going to start your project right now. I will build a clean, reliable cross-platform mobile app for iOS and Android that generates professional sales offers from Excel data, creates branded PDFs, and shares instantly via WhatsApp. My focus on fault-tolerant Excel parsing, fast PDF generation, and seamless UI ensures your team can impress clients efficiently.

@sheikhasad2662

Hello, I can build your cross-platform mobile app (iOS & Android) to let your team create and share professional sales offers instantly while keeping the process fast, reliable, and user-friendly. Tech Approach Framework: Flutter for smooth cross-platform builds. Backend/Admin: Lightweight Node.js/Express (or Firebase Functions) for Excel uploads and parameter updates. Excel Parsing: syncfusion_flutter_xlsio for accurate, fault-tolerant data handling. PDF Generator: pdf/syncfusion_flutter_pdf for dynamic, branded PDFs with logos, imagery, and detailed breakdowns. Sharing: Native share sheet via share_plus for one-tap WhatsApp delivery. Flow Upload Excel with inventory, payment plans, and discount ranges through a secure web admin console. Salesperson selects unit → currency → payment plan directly in the app. System generates a branded PDF instantly. Offer is shared seamlessly via WhatsApp or other native channels. Deliverables iOS & Android builds ready for production Secure admin console for Excel and parameter edits Fast, dynamic PDF generator Full source code with deployment guide Timeline: First test build in 10–12 days, complete MVP in ~3–4 weeks. I have experience in Excel parsing, PDF creation, and WhatsApp integration for real estate and sales tools, and can ensure clean UI, reliability, and performance over fancy graphics. Looking forward to your feedback! Regards, Muhammad Asad Ali

@ayesha0124

Hi there, How r u? I have had a look and i am sure that i can handle this project well as i have experience in iPhone, React Native, Flutter, Mobile App Development, Android, Backend Development, C# Programming and iOS Development. I have worked on similar projects before too. Please initiate the chat and discuss in detail. Waiting for ur kind response. Regards

@Engumer480

Thank you for your detailed and enthusiastic proposal. Your expertise in Flutter, PDF generation, and workflow automation aligns perfectly with our vision for a cross-platform sales offer app. I’m particularly impressed by your thoughtful approach to seamless WhatsApp integration and the lightweight admin console for managing Excel uploads—these are exactly the features we need. Your nine years of full-stack experience and focus on clean, documented code give us confidence in your ability to deliver a robust and user-friendly solution. Let’s connect to discuss the project scope, timeline, and any specific requirements you’d like to clarify. I’m excited to explore how we can bring this app to life together. Best regards,

@gtssoftindia

Hi Mate, I came across your project for a cross-platform sales offer app and I’d love to help you bring it to life. I’ve built mobile apps with automated document generation and third-party integrations, so I understand the need for speed, reliability, and a clean workflow that supports your team in real-time. Here’s how I can support your build: 1. Develop a robust iOS and Android app using Flutter or React Native for seamless performance. 2. Create a secure, lightweight admin console for Excel uploads and parameter edits. 3. Implement dynamic PDF generation that incorporates branding, project visuals, and financial breakdowns. 4. Enable native WhatsApp sharing so sales staff can send offers instantly without leaving the app. Quick questions: 1. Do you prefer Flutter or React Native for long-term scalability? 2. Should the PDF generator support multiple languages or remain single-language? I can share demos of similar apps I’ve developed and walk you through the technical flow. Let’s build a tool that helps your sales team close deals faster, with clean UI, fault-tolerant Excel parsing, and instant branded PDFs. Best regards, Tejas J

@mobiwebsolutions

Hi there!!! I have carefully reviewed your project description for a cross-platform sales offer app. My expertise in building **cross-platform mobile applications** and my ability to create dynamic, data-driven documents and automate workflows makes me the perfect fit for this project. * I will develop the app using **Flutter**, as it allows for fast development, a single codebase, and seamless integration with both iOS and Android. * I will use a library like `pdf` or `printing` for dynamic **PDF generation**, ensuring professional-looking branded documents that can be easily shared. For WhatsApp integration, I will use the `url_launcher` package to open the native share sheet without forcing the user to leave the app. * I will build a simple, lightweight admin console for secure Excel file uploads and parameter edits, ensuring a fast and fault-tolerant back-end flow. My basic services include professional UI/UX design, database management, rigorous testing, and providing all source code with clear documentation. I have over 9 years of experience as a full stack developer. I have worked on similar projects involving automated document generation and streamlined workflows for sales teams, ensuring fast and reliable performance. Looking forward to chat with you to make a deal. Best regards, Elisha Mariam!

@Expert016

Hi Yes got it - I have an expertise in application design and development both iOS and Android... Please message me so we can discuss in detail and i can share recent apps i have designed and developed. Kind Regards NT

@devbaloni1983

Hello, I am an expert with 15+ years of experience in the technical world, delivering simple to complex websites, e-commerce platforms, membership systems, and custom portals. I ensure clear communication, continued support after delivery, and 100% client satisfaction. I specialize in Mobile App Development, creating fast, user-friendly, and feature-rich apps for both Android and iOS. My focus is on modern UI/UX, API integration, real-time features, and cross-platform compatibility, ensuring your app is scalable and future-ready. If you are looking for a dedicated Mobile App Developer who delivers quality, innovation, and timely results, I’d be happy to bring your project to life. Best regards, Dev

@mannanmaan1425

Hello Shujauddin S., I have read the project details and understood the overall requirement. I am Abdul, with 5 years of experience in Mobile App Development, specializing in iPhone, Android, C# Programming, iOS Development, Backend Development, React Native, and Flutter. I have successfully delivered multiple projects in similar domains. For the Cross-Platform Sales Offer App, I propose to use a combination of Flutter or React Native for the mobile app development, ensuring seamless functionality on both iOS and Android platforms. The back-end flow will involve a secure admin console for easy Excel uploads and parameter edits, while the front-end will feature a dynamic PDF generator for quick and branded offer creation, integrated with WhatsApp for instant sharing. You can view my portfolio here: https://www.freelancer.com/u/mannanmaan1425 Please ping me back so we can discuss the project further in the chat. Best regards, Abdul

@trm66614

Hi there,Good afternoon I am Talha. I can work with your project skills React Native, iPhone, Backend Development, Flutter, C# Programming, iOS Development, Android and Mobile App Development I am excited to present my proposal, which centers around a personalized approach designed to elevate your project. We will start with an in-depth consultation to gain a deep understanding of your project's unique requirements, goals, and constraints. Our commitment to customization means that we will tailor our services to align perfectly with your project, and we will explain how this approach will meet your expectations. Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan

@jitendras097

Hello, I HAVE HANDS-ON EXPERIENCE WITH PROJECT HAVING SIMILAR FEATURES I have over 9+ years of proven expertise in delivering complex projects end-to-end, I have carefully reviewed your requirements and can confidently execute this task with precision. The project aims to develop a cross-platform mobile app to generate professional sales offers in real-time, directly from updated Excel inventory and pricing data. Core features will include dynamic PDF generation, seamless WhatsApp sharing, secure Excel uploads, and a clean, fault-tolerant UI. My approach will use Flutter/React Native for smooth mobile performance, integrate PDF libraries for fast generation, and ensure easy back-end management. By combining technical depth with practical execution, I will deliver a solution that is reliable, user-friendly, and future-ready. -->>WHAT I AM OFFERING-- ->>100% DELIVERY OF WORK ->>HIGH-QUALITY, BUG-FREE CODE ->>DAILY PROGRESS UPDATES WITH NO COMMUNICATION DELAYS ->>2 YEAR POST-DEVELOPMENT SUPPORT TO ENSURE YOUR APP RUNS SMOOTHLY, FREE OF COST Let’s discuss in chat as I have some queries to ask regarding the project to proceed further. Jitendra