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I need a secure budgeting application that can pull transactions automatically from both retail and investment banks, place each line item into the right budget category, and keep every category’s spend-to-allocation ratio visible at a glance. The heart of the system is percentage-based tracking: every category shows its current spend as a % of the amount I’ve assigned for the month, quarter, or year. Key workflow 1. The user links a bank account (Open Banking, Plaid, Yodlee, or a comparable aggregator). 2. New transactions flow into the platform on a schedule we define (daily is fine to start). 3. The data is written immediately to an Excel file that mirrors my existing budget template—same columns, same formulas—so nothing breaks for longtime spreadsheet users. On top of that core flow, I also need: • Budget analysis reports that summarise trends, category overruns, and long-term savings progress. • Multi-user access so more than one household member (or an advisor) can log in with separate credentials and view/adjust the same budget. • Native import for both desktop apps (Windows and macOS) and mobile apps (iOS and Android). A web portal is optional later, but not required right now. Deliverables • A working desktop client and companion mobile app that authenticate, fetch, categorise, and export transactions as described. • Source code (preferably in a mainstream stack such as React Native + Electron + Node, but I’m open to your recommendation). • Clear documentation covering environment setup, API keys, and how to map additional banks or budget categories in the future. • A short test plan that proves multi-user log-in, percentage tracking accuracy, and Excel export integrity. Acceptance criteria • Connection to at least one live retail bank and one live investment bank. • Every imported transaction appears in the Excel file within five minutes of syncing. • Category percentages are calculated correctly against the budgeted figures supplied in the template. • Separate user accounts can view the same data without overwriting one another’s settings. If you have experience integrating open banking APIs and exporting structured data to Excel, this should be a straightforward build. I’m ready to supply the spreadsheet template, sample bank statements, and access to test accounts as soon as we get started.
Project ID: 40548569
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175 freelancers are bidding on average $342 USD for this job

–> Budget Management Application with Open Banking Integration <– Hello, I’ll develop a secure budgeting application with automated bank transaction syncing, smart expense categorization, percentage-based budget tracking, Excel template integration, and multi-user access. The solution will include desktop and mobile apps with detailed budget reports, secure authentication, and a scalable architecture for future enhancements. WITH 3 MONTHS FREE SUPPORT AFTER DEVELOPMENT READY TO START WORK IMMEDIATELY!!!!! Thanks Shweta!!
$140 USD in 7 days
9.9
9.9

Hi, This project requires more than a budgeting app: it needs reliable bank data sync, accounting integrity, and exact preservation of your Excel template so existing formulas continue to work. The main risks are bank aggregation, accurate categorisation, and maintaining correct percentage-based spend views across month, quarter, and year reports. My approach would begin with the full workflow: bank authentication, scheduled transaction sync, categorisation rules, and Excel write-back without breaking your current columns or formulas. I would then add secure multi-user access so household members or advisors can share the same budget without overwriting settings. I’d also build the bank integration with a provider abstraction so additional institutions can be added later with minimal rework. Relevant experience includes building data-sync workflows, spreadsheet-integrated systems, and access-controlled applications that preserve existing reporting logic. I’m available to review this via Freelancer chat or video call between 11 AM and 8 PM IST. If helpful, I can also share relevant work samples and discuss the best implementation plan. Regards, Ghanu & Samir KESHAV INFOTECH
$97 USD in 5 days
9.7
9.7

Hello, could you please share your existing Excel budget template and let me know which country and banks you need to support first so I can recommend the most suitable Open Banking provider? We will complete: Develop a secure desktop and mobile budgeting application with multi-user access, automatic bank synchronisation, transaction categorisation, and percentage-based budget tracking. Integrate Open Banking APIs, preserve your existing Excel template and formulas, generate analysis reports, and ensure seamless data export within the required timeframe. Deliver complete source code, deployment documentation, API configuration guides, comprehensive testing, and a handover session for future maintenance and expansion. Please connect with me in chat, we discuss more and finalise the action plan, optimum time & cost estimate. Thank you Gopal I will share demo links of similar past work we’ve done in a private chat.
$150 USD in 5 days
9.5
9.5

Interesting project, I will build your desktop (Electron) and mobile (React Native) clients with a Node backend that connects via Plaid to your retail and investment accounts, auto-categorizes each transaction, and writes it directly into your Excel template with percentage tracking per category. I will send you a short progress update at the end of each day so nothing drifts. Questions: 1) Is Plaid your preferred aggregator, or do your banks require a different provider? 2) How many budget categories does your current spreadsheet template use? Happy to start once you share the template. Looking forward to discussing further. Best regards, Kamran
$90 USD in 5 days
8.7
8.7

With extensive experience as a full-stack developer for 7 years, and expertise in Excel, mobile app development, web scraping and automation, I am confident that I possess the skills required to successfully complete your multi-bank budgeting platform. Having worked with top companies like Metlife GOSC and DXC Technologies, I understand and value the importance of time and accuracy in delivering high-quality work. As a freelancer who prioritizes client satisfaction, you can be assured of my commitment to providing you with a functional yet secure budgeting application. My proficiency in using the open banking APIs and exporting structured data to Excel makes me a strong fit for your project. I assure you a streamlined process in connecting retail and investment bank accounts for automatic transaction pulling while maintaining data integrity.
$220 USD in 4 days
8.7
8.7

Hello!! "Multi-Bank Budgeting Platform " I have similar kind of expertise and work experience. I am having more then 10+ years of experienced in programming and i believe that i can start working step by step and achieve the project goal in short time frame. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL WORK WITH AGILE METHODOLOGY AND WILL ASSIST YOU FROM ZERO TO PUBLISHING ON STORES. successfully implement this project from start-to-finish. Let's come together and create a platform that not only propels your business but also stands out prominently within the marketplace. Awaiting for your positive response. Thanks >>>>>>> We'll share our portfolio in Chat. Let's talk further speak over the freelancer call or chat. <<<<<<
$140 USD in 7 days
8.5
8.5

Hi, I can build a secure multi-bank budgeting platform that automatically syncs transactions, categorises spending, and exports structured data directly into your Excel budget template. What I will deliver Secure authentication system with multi-user access (household/advisor roles) Integration with Open Banking APIs (Plaid/Yodlee or similar) for retail and investment banks Automated transaction sync (scheduled daily or configurable) Smart categorisation engine mapped to your budget structure Real-time percentage-based budget tracking per category Excel export that mirrors your existing template exactly (columns + formulas preserved) Budget analytics (overspending alerts, trends, savings insights) Desktop app (Electron) + mobile app (React Native) for iOS & Android Encrypted data handling and secure API key management Deliverables Desktop + mobile applications Full source code Setup and API documentation Test plan covering bank sync, multi-user access, and Excel integrity I can start immediately and would be happy to review your spreadsheet template and sample bank data to refine the architecture. Best regards, ADEEL
$90 USD in 7 days
8.1
8.1

Hello, I can build your multi-bank budgeting platform with secure Open Banking integration (Plaid/Yodlee or similar), automatic transaction syncing, smart categorisation, and real-time percentage-based budget tracking exactly as described. My approach: • Use a Node.js backend to securely connect bank APIs and handle scheduled transaction syncing • Store and process transactions in a structured database with category mapping rules • Auto-export data into your existing Excel template while preserving all formulas and structure • Build a React Native app (with optional Electron desktop wrapper) for multi-user access and real-time budget viewing • Ensure proper authentication, role separation, and data isolation for multiple users Key features: • Multi-bank connection (retail + investment accounts) • Daily automated sync (configurable) • Excel export within minutes of updates • Budget analytics and category overspend alerts • Secure multi-user login system • Cross-platform mobile + desktop support I’m ready to start once you share the Excel template and API access details. Best regards RAHEEL
$90 USD in 7 days
8.1
8.1

⭐⭐⭐⭐⭐ Create a Secure Budgeting App with Automated Transaction Tracking ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and noticed you're looking for a secure budgeting application. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for budgeting applications. I will build a system that pulls transactions from banks, categorizes them, and tracks spending efficiently. I will ensure that the data flows smoothly into an Excel file, keeping your existing budget format intact. Additionally, I will provide budget analysis reports and multi-user access to enhance usability. ➡️ Why Me? I can easily create your budgeting application as I have 5 years of experience in application development, specializing in financial software, data integration, and user management. Not only this, I have a strong grip on technologies like React Native, Node.js, and API integration. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Application Development ✅ Financial Software ✅ Data Integration ✅ User Management ✅ API Integration ✅ Excel Automation ✅ Budget Analysis ✅ Mobile App Development ✅ Multi-User Access ✅ React Native ✅ Node.js ✅ Documentation Waiting for your response! Best Regards, Zohaib
$150 USD in 2 days
8.1
8.1

Hi, We’ve built similar web apps that connect to multiple banks and automatically categorize transactions. We also developed a Chrome extension that extracts data from web pages and sends it to the backend for processing. For your project, we can use a dedicated backend service to fetch transactions from banks and process them independently, ensuring that the main app remains responsive. We can also implement a scheduled job to fetch transactions at regular intervals, so you don’t have to wait for manual updates. We can use libraries like PHPExcel or Python’s openpyxl to generate Excel files with the same structure as your existing template, ensuring that all formulas and formats remain intact. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m looking forward to hearing more about this exciting project. Best regards, Adil
$124.14 USD in 7 days
7.7
7.7

Hi, I can build this budgeting application with secure bank integrations, automatic transaction syncing, smart categorization, percentage-based budget tracking, and seamless Excel export that matches your existing template. The solution will include desktop (Windows/macOS) and mobile (iOS/Android) apps, multi-user access, budget reports, and clean, well-documented source code. I’ll also provide setup documentation, API configuration, and a test plan covering authentication, percentage calculations, and Excel export. Question: Which banking aggregator would you like to use (Plaid, Yodlee, Open Banking, etc.), or should I recommend the best option based on your target region? I look forward to discussing your project. Thanks
$140 USD in 7 days
7.6
7.6

Hello, With over a decade of experience as a web development company, WellSpring Infotech guarantees that your multi-bank budgeting platform will be built with precision and efficiency. We understand the intricacies of integrating open banking APIs and our expertise in custom web development will ensure that we deliver a high-quality, secure, and user-friendly application for you. Our proficiency in WordPress Development, WooCommerce Development, Magento Development to name a few, is testament to our capability in creating tailored solutions that meet clients' unique requirements. Building your application using a mainstream stack such as React Native + Electron + Node would be optimal for the complexity of this project while still providing scalability. Moreover, at WellSpring Infotech we value the importance of solid documentation. We will provide a clear and detailed manual covering environment setup, API keys configurations and excel template adaption process for the future. Importantly, our extensive history in building eCommerce websites has honed our skills in data management: your transactions will swiftly move into categories exactly as you require. Thank you
$250 USD in 5 days
8.0
8.0

Hi, Your project is a great fit for Doomshell Software. We specialize in developing secure financial applications with banking API integrations, cross-platform applications, and automated reporting designed for reliability, scalability, and long-term maintainability. Our process begins by reviewing your Excel budget template and transaction workflow, selecting the most suitable banking aggregator (Plaid, Yodlee, or Open Banking), developing secure desktop and mobile applications, implementing automated transaction syncing, category mapping, percentage-based budget tracking, multi-user access, and Excel export while preserving your existing formulas. Why Doomshell Software? • Expertise in financial software and banking API integrations • Automated Excel generation while preserving formulas and formatting • Secure multi-user authentication and role-based access • Clean architecture, documentation, and long-term support A couple of questions: 1. Which country or countries will the application initially support, and do you already have a preferred banking aggregator such as Plaid, Yodlee, or another Open Banking provider? 2. Does your Excel template already contain the budget formulas and category mappings, or would you like us to automate and enhance those calculations as part of the application? We'd be happy to help build a secure, scalable budgeting platform that integrates seamlessly with your existing workflow. Best regards, Doomshell Software
$230 USD in 5 days
7.7
7.7

Hi There! I specialize in fintech application development with 9+ years of experience building secure banking, budgeting, and data integration solutions across desktop and mobile. Here's how I can help: 1. Integrate Open Banking APIs with automated transaction syncing. 2. Build multi-user budgeting with percentage tracking and Excel export. 3. Deliver secure desktop and mobile apps with clear documentation. Do you already have a preferred banking provider like Plaid or should I recommend the best option?
$140 USD in 7 days
7.3
7.3

The interesting part of this project isn’t the bank integration itself, it’s preserving the spreadsheet-driven workflow while making the data flow automatic and reliable. I’d start by reviewing your existing Excel template first, because the export structure and formulas will drive how transactions, categories, and percentage calculations are stored internally. For bank connectivity, I’d use Plaid (or an equivalent based on your region and investment account requirements), pull transactions on a scheduled sync, then run them through a rules-based categorization layer with manual overrides so corrections improve future matches. Every sync would write directly into the Excel workbook while preserving formulas and formatting rather than generating a separate export file. For the desktop/mobile requirement, React Native + Electron + Node is a practical choice since it keeps most business logic shared across platforms. I’d also add transaction deduplication, sync auditing, and conflict handling so multiple household members can safely work in the same budget. One thing I’d like to confirm: does your existing spreadsheet already contain the percentage-tracking formulas, or should those calculations be generated by the application itself?
$150 USD in 3 days
7.1
7.1

Hello, We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on PHP, Mobile App Development, Excel, Software Architecture, HTML, Node.js, Web Development, API Integration Lets connect in chat so that We discuss further. Regards
$140 USD in 7 days
7.4
7.4

Hello Manual bank imports waste time and risk data errors. You need automated, secure financial tracking. I built encrypted fintech dashboards for three startups, integrating Plaid APIs for real-time synchronization. My architecture prioritizes SOC2-compliant data handling while maintaining intuitive user flows. I can integrate your bank feed and deploy this securely by Friday. Are you available for a brief call today to discuss your specific data requirements? Giáp Văn Hưng
$120 USD in 7 days
7.0
7.0

As a seasoned freelancer with over 13 years of Python web automation and data mining experience, I am confident in my ability to deliver the robust and secure multi-bank budgeting platform you need. I have ample experience integrating open banking APIs, and can efficiently fetch, categorize, and export transactions into structured Excel files. Being adept at Full-Stack and Mobile App development, I can construct a powerful desktop client and a companion mobile app that mirror your existing budget template without any disruption to your long-standing spreadsheet workflow. Importantly, user experience has always been a priority in my development approach which aligns tightly with your need for multi-user access. I'll ensure each user account can view and adjust the same budget without affecting other settings. In effectuating this project, I commit to providing meticulous documentation covering environment setup, API keys management and future-proofed information like addition of banks or extra budget categories supposingly required later. Let's dive into this project quickly - it will be my pleasure to leverage my diverse skill-set to develop this hearty-multi-bank budgeting platform together!
$30 USD in 1 day
7.1
7.1

Hello! Based on your project description, you are looking to build an Multi Bank Budgeting Platform that automatically connects with retail and investment banks, imports transactions, categorizes spending, and tracks budget utilization through percentage based reporting. The solution will include secure bank integrations, scheduled transaction syncing, Excel template compatibility, detailed budget analytics, multi user access, desktop applications for Windows and macOS, companion mobile apps for iOS and Android, and comprehensive documentation. I will focus on developing a secure and scalable application using a modern technology stack with seamless bank integrations, intelligent transaction categorization, accurate percentage based budget tracking, and automated Excel exports that preserve your existing formulas and structure. The platform will also include robust user management, detailed reporting, synchronized desktop and mobile experiences, and clear documentation to simplify future maintenance and expansion. I specialize in fintech applications, banking integrations, and full stack software development with 7+ years experience and I have done similar work in past please open the chat window so I can share with you. Thank you for considering my proposal. I look forward to hearing from you soon. Best regards, Nikita Gupta.
$515 USD in 15 days
6.9
6.9

As a full-stack development team with over 12 years of experience, we're confident we can seamlessly integrate your vision of a multi-bank budgeting platform into a reality. Our range of skills in web, mobile, and enterprise solutions like PHP, Java, TypeScript, and Node.js allow us to provide comprehensive data-driven projects like yours, involving tasks such as data aggregation from open banking APIs, intricate categorization and real-time sync into your Excel template. Moreover, our expertise in React Native + Electron + Node implies that we are already highly familiar with this type of mainstream tech stack that is needed for your desktop client and companion mobile app. We've also adept at keeping up with the industry's best practices and readily available to learn any new tech stacks if it suits your project better. Plus, insist on thorough documenting enabling you easy scalability and maintainability if you need to add more banks or budget categories in the future. You can expect a produce-focused approach right from test plan that to proves multi-user log-in percentage tracking accuracy and Excel export integrity. That underscores our commitment to not just deliver functional software but one that addresses your distinctive needs effectively. Choose us for this project and let's scale this journey together!
$30 USD in 7 days
7.2
7.2

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