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I need a complete astrology application whose core job is to generate accurate birth (natal) charts. A user should be able to enter date, exact time, and place of birth and instantly receive a visual chart with the usual planetary positions, house cusps and aspect table. Platforms The solution must run natively on Windows and through a Web interface; I would also like Mac OS support and, if you can package the same codebase into Android and iOS apps, even better. Please indicate how you plan to achieve this multi-platform reach—whether that is via Electron, Flutter, React/Node, or another framework that compiles to desktop, web, and mobile. Key requirements • High-precision ephemeris calculations so the chart data is reliable • Clean UI that shows the wheel, tables and brief text interpretation side by side • Ability to save, print or export the chart (PDF/PNG) • Time-zone and daylight-savings handling built in • Source code and build/installation instructions delivered at the end Acceptance criteria A test run with five sample birth details must produce charts that match the Swiss Ephemeris within accepted orb limits, and the installer / web deployment should work on first try without manual tweaking. Let me know your proposed tech stack, any existing astrology engines you intend to integrate, and the estimated timeline from prototype to final build.
N° de projet : 40232550
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27 freelances proposent en moyenne ₹27 668 INR pour ce travail

Hello, I’m Mike, This is a technically rich project, and accuracy plus cross-platform consistency will be the foundation. Proposed Stack • Core Engine: Swiss Ephemeris (C library) wrapped via Node.js native bindings or Rust bridge for precision • Frontend: Flutter for single codebase targeting Web, Windows, macOS, Android, and iOS • Desktop Packaging: Flutter desktop builds (no Electron overhead) • Backend (if needed): Node.js service for ephemeris calculations and PDF export • Database: Lightweight SQLite or PostgreSQL (for saved charts) How I’d Ensure Precision • Direct Swiss Ephemeris integration for planetary positions, houses, and aspects • Built-in timezone + DST resolution using IANA timezone database • Validation tests against five provided birth samples within accepted orb tolerances Core Deliverables • Clean split-view UI: chart wheel + planetary table + aspects + short interpretations • Export to PDF/PNG • Save/load charts locally or cloud sync • Complete source code + documented build steps Timeline Estimate • Prototype with accurate chart engine: 3–4 weeks • Full UI, exports, cross-platform packaging: 4–6 additional weeks Total: ~8–10 weeks If helpful, I can outline the chart rendering architecture and performance considerations next. Best, Mike
₹25 000 INR en 7 jours
9,6
9,6

Your biggest risk is ephemeris accuracy - if the planetary calculations drift by even 1 degree, the entire chart becomes useless. Most developers underestimate this and end up with a pretty UI that generates wrong data. The Swiss Ephemeris library is non-negotiable here, but integrating it across 5 platforms without calculation drift requires careful architecture. Before I map out the stack, I need clarity on two things: What's your tolerance for chart generation latency? (Server-side calculations add 200-500ms but guarantee consistency across platforms, while client-side is instant but harder to validate.) And do you need real-time transits or progressions in v1, or just static natal charts? This affects whether we build a stateless API or embed the ephemeris engine in each client. Here's the architectural approach: - FLUTTER + DART: Single codebase compiles to Windows, macOS, Web, Android and iOS with native performance. I'll use the swiss_ephemeris Dart package which wraps the official C library - this gives you sub-arcsecond precision across all platforms without rewriting calculation logic. - NODE.JS + EXPRESS: Lightweight API layer for chart storage and PDF generation using swisseph npm bindings. This handles timezone lookups via the IANA database and validates DST transitions against historical records (critical for births before 2007). - CANVAS RENDERING: Custom chart wheel drawn with Flutter's CustomPainter for pixel-perfect aspect lines and house cusps. I've built 3 similar visualization engines - the trick is caching the SVG paths so zooming doesn't recalculate geometry. - POSTGRESQL: Store birth data with PostGIS extensions for coordinate-based location search. Indexes on datetime fields let you query charts by planetary positions later if you add synastry features. I've integrated Swiss Ephemeris into 2 astrology platforms that handle 50K+ chart generations monthly. The calculation engine is deterministic, but timezone handling breaks most implementations - I'll use the timezonefinder library with offline city databases so it works without internet. Let's schedule a 20-minute call to review the aspect calculation orbs and house system preferences before I start the prototype.
₹22 500 INR en 7 jours
7,3
7,3

Hello 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. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹30 000 INR en 7 jours
6,5
6,5

As an experienced full stack developer with a key focus on mobile app and software development using technologies like React.js, Node.js and more, I have a highly relevant skill set to bring to your birth chart software project. I understand the requirement for precise ephemeris calculations and clean UI display presenting the essential planetary positions, house cusps and aspect table. In addition, I have a deep appreciation of cross-platform compatibility - I am familiar with Electron, Flutter as well as React Native which will allow the broadest possible reach of your app. One important aspect to emphasize is that building accurate birth chart software requires not just technical acumen but also keen attention to detail. My 5+ years of real-world experience has honed my capability to craft clean, optimized and maintainable code that remains reliably accurate across platforms and devices. I have built apps with time-zone and daylight-savings handling incorporated while preserving the highest accuracy in data management. Lastly, I take pride in delivering projects on time without compromising quality or accessibility. This aligns perfectly with your vision for this project: an application that correctly generates charts matching up with accepted orb limits. Partnering together, we can bring your unique astrology application to life efficiently and effectively across all platforms. I look forward to discussing the technical details of this project further with you!
₹25 000 INR en 7 jours
5,2
5,2

As a seasoned Full Stack Developer with over 14 years of experience, I bring to the table not only technical expertise but also a drive for precision. My skills with Android, C# Programming, Mobile App Development, Node.js and React.js place me in an excellent position to take on a project of this nature. I have worked with various platforms and delivered multi-platform solutions before. In fact, I have used frameworks like Electron and React/Node to compile codebases that run seamlessly across Windows, Web, Mac OS, Android and iOS! And I assure you that I will apply the same rigor and thoroughness in delivering your Cross-Platform Birth Chart Software.
₹25 000 INR en 7 jours
5,6
5,6

Hello, I’m Dinesh Kumar With 14+ years of experience across multiple platforms, I’ve helped build numerous startups through dedication and hard work. I’m committed to delivering high quality work that ensures 100% client satisfaction. Your success is my priority, and I focus on building long term relationships based on trust and excellence. Expertise: Web & App Development – React.js, Node.js, JavaScript, PHP, MySQL, WordPress, Magento, CodeIgniter, Shopify, .NET, Flutter, FoxPro Strong knowledge of frameworks, software design, and development methodologies Proven ability to deliver custom, scalable, and reliable solutions for diverse industries I work with clients globally, providing end to end solutions that meet unique project needs while maintaining the highest quality standards.
₹25 000 INR en 7 jours
2,3
2,3

Hello, I am excited to propose my services for your astrology application. - I have extensive experience in developing similar applications, ensuring accurate data processing. - My plan includes: 1. Requirement analysis 2. Design and development 3. Testing and deployment - I will use technologies like React Native for cross-platform compatibility and Node.js for backend services. - I estimate a timeline of 8-10 weeks with regular updates through your preferred communication channel. Choose me for my dedication to quality and timely delivery. What specific features do you want in the application? Do you have a preferred platform for deployment? Regards, Bharti M.
₹25 000 INR en 7 jours
2,4
2,4

Hi there, I’m Dhaval from Codeline Infotech LLP. We can build your multi platform astrology app with accurate natal charts, Swiss Ephemeris integration, chart wheel UI, tables, exports, and deployment for web, desktop, iOS, and Android. We have 6+ years experience with Flutter, cross platform apps, PDF generation, complex calculations, and scalable architectures. Full source code, documentation, and build instructions included. Best regards, Dhaval
₹25 000 INR en 7 jours
1,5
1,5

Hello There! I carefully read your full brief for Cross Platform Birth Chart Software and I truly appreciate the focus on precision and multi platform reach. You want a reliable astrology application that generates accurate natal charts using exact birth details and matches Swiss Ephemeris results within accepted orb limits. Cross Platform Birth Chart Software will allow users to enter date, time, and place of birth and instantly generate a visual wheel. It will display planetary positions, house cusps, and aspect tables clearly. Users will be able to save, print, or export charts. The system must handle time zones and daylight savings accurately across platforms. Core priorities include high precision ephemeris engine, cross platform deployment, chart export options, timezone accuracy, source code delivery. I have 7+ years of experience building desktop, web, and mobile applications, I can architect this using a shared core logic layer and deploy to Windows, Web, Mac, Android, and iOS efficiently. I focus on clean architecture, accurate calculations, smooth installers, and long term maintainability. Let us schedule a quick chat to align your vision and next steps. Warm Regards, Pratiksha Gupta
₹75 000 INR en 25 jours
0,2
0,2

With 7 years of experience in astrology software development, I am the best fit to complete this project. I have the relevant skills to deliver a high-quality Cross-Platform Birth Chart Software that meets all your requirements. How I will complete this project: - Utilizing my expertise in astrology software development, I will create a user-friendly application that generates accurate birth charts based on the user's input. - Implementing high-precision ephemeris calculations to ensure the reliability of the chart data. - Designing a clean UI that displays the planetary positions, house cusps, and aspect table in an organized manner. - Incorporating features such as saving, printing, and exporting the chart in PDF/PNG format. - Handling time-zone and daylight-saving adjustments seamlessly within the application. - Providing the complete source code and detailed build/installation instructions at the end of the project. Tech stack I will use: - I plan to use a combination of Electron and React/Node to achieve multi-platform reach across Windows, Mac OS, Web, Android, and iOS. - I will integrate existing astrology engines to enhance the accuracy of the birth charts. - The estimated timeline from prototype to final build will be provided after further discussion. Having worked on similar solutions in the past, I am confident in my ability to deliver a top-notch Cross-Platform
₹13 750 INR en 7 jours
0,0
0,0

Hi, I can easily DO your work IN 24 HOURS, DM me now to get started, PRICE NEGOTIABLE 100% Work satisfaction is provided
₹12 500 INR en 1 jour
0,0
0,0

Swiss-Ephemeris accurate natal charts for Web + Windows/Mac (Electron) + optional iOS/Android, PDF/PNG.
₹25 000 INR en 7 jours
0,0
0,0

I’m a software developer with strong experience building scalable, secure, and performance-focused applications. I specialize in turning ideas into functional, production-ready systems. For your project, I will: Understand your exact requirements and expected outcomes Design a clean, efficient architecture Develop maintainable and well-structured code Ensure performance optimization and security best practices Deliver on time with clear communication throughout the process My focus is not just writing code, but building solutions that are reliable, scalable, and aligned with your business goals. I’m confident I can deliver a high-quality result for you. Let’s discuss the details and get started.
₹25 000 INR en 3 jours
0,0
0,0

Saya mengajukan diri sebagai Lead Developer & System Architect untuk proyek ini dengan pendekatan: Arsitektur enterprise-grade Akurasi astronomis terverifikasi Clean scalable codebase Deployment lintas platform tanpa kompromi Siap dikomersialisasikan Pendekatan saya bukan sekadar membuat aplikasi astrologi, tetapi membangun mesin astrologi profesional yang bisa menjadi fondasi produk jangka panjang.
₹25 000 INR en 10 jours
0,0
0,0

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