
Closed
Posted
Paid on delivery
I'm looking for an experienced mobile app developer to create a financial calculator app for Android. The app should include: - Loan Calculations: Provide various loan calculation tools. - Investment Calculations: Include tools for different investment scenarios. - Currency Conversions: Real-time currency conversion feature. Ideal skills and experience: - Proficiency in Android app development. - Experience with financial calculators and related functionalities. - Strong UI/UX design skills to ensure user-friendly interface. - Ability to integrate real-time data for currency conversions. Please share your relevant experience and portfolio.
Project ID: 40732067
79 proposals
Remote project
Active 2 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
79 freelancers are bidding on average ₹33,754 INR for this job

We will design and develop a mobile application for your requirements which will do all the financial calculations for you as per your given set of requirements using realtime values from specified sources wherever required. Please get in touch to discuss more in detail and start with the work ASAP
₹29,000 INR in 5 days
7.8
7.8

Hi, CnEL India can develop this financial calculator app for Android using React Native, subject to your preferred technology. Our approach: * Define the required loan, investment, and currency calculation workflows. * Design a clean, mobile-friendly interface with simple inputs and clear results. * Build accurate loan calculators covering the agreed scenarios. * Implement investment calculations with reusable calculation logic. * Integrate a reliable currency-rate API for real-time exchange rates. * Add proper validation, rounding, error handling, and API fallback states. * Keep calculation logic modular and easy to extend with additional financial tools. * Optimize API usage, caching, and app performance. * Test calculations against expected financial results and edge cases. * Test API failures, connectivity, different screen sizes, and user inputs. * Prepare the Android build and provide source code and setup documentation. We can first finalize the calculation formulas and currency API, then develop each calculator module, test the results, and prepare the final Android release.
₹25,000 INR in 15 days
7.8
7.8

Hi, I've gone through your requirements. A financial calculator app lives or dies on accurate calculations and a clean UI, and that's where I'll focus. Proposed build (native Android, Kotlin + Jetpack Compose): Loans: EMI, full amortization schedule, prepayment comparison, flat vs reducing balance Investments: SIP, lumpsum, CAGR, FD/RD and goal planning, with simple charts Currency: real-time conversion through a reliable exchange-rate API, with cached rates so it still works offline Every formula unit-tested against standard bank/AMC calculators, so the results can be trusted A modern, easy UI with light/dark mode and saved calculation history Delivery: about 3 weeks in milestones (UI design → calculators → currency and testing), with builds shared along the way. I can also help with Play Store publishing. I'm Keyar, CTO of O Clock Software (Chennai, since 2009, 100+ engineers). We've built products for clients in India, Singapore, UAE, USA and Europe. Quick questions: Do you need an iOS version later? If so, I'd suggest Flutter now. Do you have a preferred currency API, or should I recommend a free one? Best regards, Keyar
₹25,000 INR in 14 days
7.6
7.6

Dear client, I have already worked on loan calculator before, I can implement currency conversion with investment calculator also, I have more than 10 years of exp in apps and web development. Please share more details about app with UI or layouts.
₹12,500 INR in 5 days
6.3
6.3

With my diverse technical background and track record of building dynamic digital solutions, I'm confident I'm the perfect fit for your financial calculator app project. Over the years, I've honed my Android App Development skills and working with your desired functionalities like loan calculation, investment tools, and real-time currency conversion won't be a problem for me. As a developer, I don't just focus on building great apps but also prioritize creating a remarkable user experience. This, I believe, is crucial for a financial calculator app as it necessitates user-friendliness and easy navigation. My strong UI/UX design skills will come in handy to craft an intuitive interface that your target users will find comfortable to work with. Another aspect that sets me apart is my ability to merge real-time data into apps. This vital skill is imperative for your currency conversion feature as it requires up-to-date information. Given my experience of delivering successful projects on time and within budget, rest assured that you'll have your finance calculator app developed efficiently and effectively. Let's discuss more details about your project ambitions today!
₹17,999 INR in 7 days
6.0
6.0

Hello, We can develop your Android financial calculator app with a clean, intuitive interface and accurate financial calculations. **Key Features:** • Multiple loan calculators including EMI, interest, tenure and repayment calculations • Investment calculators for SIP, lump-sum returns and other scenarios • Real-time currency conversion through a reliable exchange-rate API • Clean and user-friendly UI/UX designed for quick calculations • Proper input validation and clear calculation results • Calculation history where required • Offline support for core financial calculators • API integration for updated currency rates • Optimized performance across modern Android devices • Complete Android Studio source code and documentation • Signed APK/AAB ready for Google Play submission **Technology:** Kotlin + Android Studio with REST API integration for live currency data. We will ensure the calculation logic is accurate, the interface is easy to use and the architecture remains flexible for adding more financial tools in the future. We can follow a milestone-based approach covering UI/UX, calculator modules, currency API, testing and final Play Store-ready build. Relevant Android/mobile work can be shared where applicable. Best regards, **Rajeshwar Infotech**
₹37,500 INR in 7 days
5.9
5.9

Hello, We can develop a professional Android financial calculator app with accurate calculations, a clean UI, and reliable real-time currency conversion. Our Approach: Native Android development using Kotlin + Android SDK Loan calculators: EMI, interest, tenure, amortization and related scenarios Investment calculators for returns, SIP/lump-sum, compound interest and future value Real-time currency conversion through a reliable exchange-rate API Clean, intuitive UI/UX with easy input and result visualization Proper validation and calculation accuracy across different scenarios API integration with loading/error/fallback handling Testing across Android devices and screen sizes Production-ready signed AAB/APK with complete source code We have 19+ years of software development experience and can handle the complete development cycle from UI/UX through testing and Play Store-ready delivery. Relevant portfolio: MoneyFirst | PayPenny We can discuss the exact calculators and currency API requirements before development. Best regards, Bivanshi Ohri
₹35,000 INR in 20 days
5.8
5.8

I can build this Android financial calculator with accurate loan, investment, and real-time currency conversion features. I have 9+ years of mobile engineering experience with strong native Android expertise, including calculation-heavy apps, API integrations, local data handling, and production Play Store releases. I’ve also built a unit conversion app, so I’m comfortable designing calculation logic that needs to be accurate, fast, and easy to use. For this app, I can handle: - Loan/EMI calculations - Investment and return calculations - Real-time currency rates through a reliable API - Clean, simple financial UI - Offline handling for calculations where possible - Play Store-ready release build I’ll keep the calculation logic well-structured and testable so adding new financial tools later is easy. You can also check my client reviews. I’m available to start immediately.
₹25,000 INR in 2 days
5.6
5.6

With over 5 years of experience as a Full Stack Web and Mobile App Developer, I have honed my skills to create scalable, high-quality, and user-friendly applications - all of which align perfectly with your project needs. Throughout my career, I've developed several mobile apps ranging from complex business solutions to customized platforms targeting specific client requirements. This has equipped me with a deep understanding of diverse UI/UX interfaces, an essential element for user-friendly financial calculators like you envision. My expertise in Android app development, complemented by proficiency in React Native and Flutter adds the cherry on top for this project. These skills allow me to build robust and efficient apps that can integrate real-time data seamlessly. With the inclusion of currency conversions in your app, real-time data is paramount and I assure you that I can deliver on that front. Another aspect of my work that might be even more important is my dedication to using clean, optimized and maintainable code. This not only ensures a smooth-functioning app but also makes it easy for any future updates or enhancements. Additionally, as someone who values clear communication and meeting deadlines, you can expect a coherent partnership with on-time delivery. I'd love to discuss your project further and show you how collectively we can create something amazing!
₹25,000 INR in 7 days
5.3
5.3

⭐⭐⭐Hi there, From Your Vision To Successful — I will take responsibility⭐⭐⭐ I can build a reliable and user friendly financial calculator app for Android with accurate loan calculations investment tools and real time currency conversion. I have relevant experience developing mobile applications with clean UI UX and calculation based features using Android technologies and API integrations. My plan is to design a simple interface where users can quickly select the required calculator and enter their values. I will implement different loan and investment scenarios with accurate formulas then integrate a reliable currency exchange API for real time conversion. I will also test calculations across different inputs and ensure the app works smoothly on Android devices. I am free now and can start immediately. I will follow your suggestions closely throughout development and keep communication clear so we can build the app according to your expectations. I am also interested in working with you long term for future improvements and support. Thanks
₹20,000 INR in 7 days
5.1
5.1

Your financial calculator app needs accurate calculations, real-time currency conversion, and a simple user experience. With 10+ years of Flutter, Kotlin, Java, and mobile development experience, I can build a reliable, polished Android app from development through launch.
₹25,000 INR in 5 days
5.1
5.1

As a senior software engineer with specialization in Android app development, I bring to the table over six years of experience building high quality apps from scratch. I'm particularly proficient in the key areas you need for this project: Loan and Investment calculations, real-time currency conversions, and ensuring a user-friendly UI/UX design. To guarantee a smooth-running app that meets your needs precisely, I can also integrate other key services - which include the provision of real-time data through APIs for currency conversions. Rest assured, my extensive skills and experience in Angluar and NodeJs will be invaluable for this. Moreover, I'm no stranger to deploying applications on different platforms— be it AWS, Google Cloud or Godaddy hosting- so assuring you of great maintenance service after deployment is something I'm well equipped for. Invest in me today for a premium solution offering genuine value.
₹36,000 INR in 15 days
5.0
5.0

Hi there, I have strong experience developing Android applications with Kotlin/Java, clean UI/UX, API integrations, and calculation-based functionality. I can build your financial calculator app with a simple, professional interface that makes complex financial calculations easy for users to understand and use. I can implement multiple loan calculation tools, including repayment, interest, tenure, and related scenarios, along with investment calculators for different return and growth scenarios. I can also integrate a reliable currency exchange-rate API to provide real-time currency conversion with proper loading, error, and offline states. Let's connect to discuss and move forward accordingly. Thanks Saurabh
₹12,500 INR in 7 days
4.9
4.9

For a financial calculator app, I’d keep loan and investment calculations fully local so results are instant and usable offline, while isolating currency conversion behind a reliable real-time exchange-rate API. I’d build the Android app natively with Kotlin + Jetpack Compose, using a modular calculation engine so EMI, amortization, compound interest, SIP/ROI, and future calculator types can be added without reworking the UI. The two priorities would be user experience and integrations: clear inputs, formatted results, charts/tables where useful, validation for edge cases, and cached currency rates with a visible last-updated timestamp. That keeps the app fast and trustworthy even on unstable connections. I handle the complete flow from UI/UX and calculation logic through API integration, testing, Play Store preparation, and source-code handoff. Financial formulas would be covered with unit tests to avoid rounding or calculation inconsistencies. A relevant project is our live stock-market analysis platform, where I worked with GDFL WebSocket APIs to display real-time financial data and analytics in a responsive dashboard.
₹65,000 INR in 7 days
4.6
4.6

Hi there, I think you want a clean Android financial calculator that makes loan, investment, and currency decisions simple without making the user work through complicated screens. I can build the app with a structured calculation engine for EMI, interest, tenure, returns and other required loan/investment scenarios, then design a clear mobile UI with instant results, editable inputs, validation, and useful summaries. For currency conversion, I’ll integrate a reliable exchange-rate API with proper loading, error, and refresh handling so rates remain practical for real use. I’ll keep calculations accurate, components reusable, and the interface responsive across Android devices, with testing against different financial inputs and edge cases before delivery. I can also support the visual design and prepare the project for future calculator additions. Looking forward to working with you. Thanks
₹25,000 INR in 7 days
4.3
4.3

Hi, Thanks for sharing the project details. I can help develop a user-friendly financial calculator app with accurate calculations, clean UI, and reliable real-time data integration. I have experience building mobile applications with structured interfaces, API integrations, and data-driven functionality. For this app, I can implement loan calculators, investment planning tools, currency conversion features, and a smooth user experience optimised for Android devices. The application can be designed with clear calculation flows, input validation, responsive layouts, and an architecture that allows future expansion with additional financial tools, saved calculations, user preferences, or reporting features. For currency conversion, I can integrate a reliable exchange-rate API and ensure the data is updated efficiently while maintaining good app performance. One question: do you already have the specific financial formulas and calculation rules you want to use, or should I help define and validate the calculation logic as part of the development? Best regards, Jaroslav Caprata
₹15,000 INR in 3 days
4.4
4.4

We can develop your Android financial calculator app with loan calculators, investment planning tools, and real-time currency conversion. Our team will focus on accurate financial formulas, a clean and user-friendly UI/UX, and reliable API integration for live exchange rates. We’ll deliver a well-tested, responsive Android app with clean source code and deployment support.
₹25,000 INR in 7 days
4.4
4.4

Hi, I can build a clean Android calculator with loan-payment/amortisation tools, investment growth scenarios and currency conversion through a licensed exchange-rate API. I would test each formula against agreed reference cases, display assumptions and rounding clearly, and show the currency rate’s timestamp with an offline/stale-rate warning. My INR 35,000 / 14-day quote covers up to six agreed calculators, one FX provider, an installable Android build and source/setup documentation. API subscriptions and store fees are separate; results would be calculations, not personalised investment advice. My relevant portfolio includes FilmaCinema, a web/Android application with a PHP admin backend. Which calculators, currencies and compounding conventions do you need initially?
₹35,000 INR in 14 days
4.0
4.0

Hello Hope you are doing well "User-Friendly Financial Calculator App" - I can build your Android app using native Android development and reliable financial calculation logic. I can implement loan and investment calculators with accurate formulas, clear inputs, instant results, and a clean interface designed for straightforward everyday financial planning. I will integrate a reliable real-time currency API, build responsive screens, validate calculations, handle edge cases, test Android compatibility, and prepare the complete release-ready application. Which currency API or exchange-rate provider would you prefer for the real-time conversion feature? Looking forward to working with you.
₹25,000 INR in 7 days
3.9
3.9

As a seasoned mobile app developer with a specialization in Android, I am confident that I can build you an excellent financial calculator app. My experience of over 5 years includes working on various complex projects, several of which involved creating and integrating financial tools. I am well-versed with the intricacies of loans, investments, and currency conversions. Moreover, my skills extend beyond just coding. With strong UI/UX design abilities, I can ensure an intuitive and user-friendly interface for your financial calculator app. Additionally, my familiarity with real-time data integration will enable me to incorporate live currency conversion rates into the app. Client satisfaction is my utmost priority, which is why I make sure to involve them in every step of the development process. My approach is centered around understanding your goals and requirements precisely so that the final product aligns perfectly with your expectations. With me, you not only get an ingenious developer but also a dependable partner who ensures quality work meeting all deadlines. Let us have a detailed conversation about your app idea and how we can bring it to life together.
₹25,000 INR in 7 days
3.9
3.9

Hyderabad, India
Member since Jun 29, 2024
$15-25 USD / hour
min $50 AUD / hour
₹600-1500 INR
₹1500-12500 INR
₹600-1500 INR
$250-750 USD
$750-1500 AUD
₹1500-12500 INR
₹1500-12500 INR
₹12500-37500 INR
₹12500-37500 INR
₹12500-37500 INR
₹12500-37500 INR
$10-30 USD
₹12500-37500 INR
$10-50 USD
₹3000-5000 INR
$2-8 USD / hour
₹750-1250 INR / hour
$250-750 AUD