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to be discussed I need to build up an application for the audit in ISA any experience?
Project ID: 39723120
237 proposals
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Active 9 mos ago
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237 freelancers are bidding on average €573 EUR for this job

Hello, Developing audit applications for ISA compliance requires specific expertise, and I understand the importance of secure and reliable systems. I can help build a robust and efficient application tailored to your needs. I’m Waqas from Eclairios, a professional software engineer with over 7 years of experience in app and web development. I have successfully completed 128 projects, earning a 5.0 rating from satisfied clients. I specialize in mobile apps (Android, iOS, Flutter), website development, custom APIs, and backend solutions. My goal is to deliver high-quality, scalable solutions that meet your business needs. Why hire me? ★ 100+ Projects Completed with 5-star rating. ★ 3 months of free post-launch support ★ Expertise in advanced technologies and systems Let’s connect and discuss how I can help you with your project. Best regards, Waqas
€420 EUR in 7 days
8.4
8.4

Hi there, I can build your cross-platform mobile app using Flutter, delivering a smooth, native-like UI across iOS and Android—with features like secure API integration, offline data sync, push notifications, and scalable code architecture using Bloc or Riverpod. I would like to discuss in detail. Kindly drop me a message and discuss more with me. Thanks
€500 EUR in 7 days
8.0
8.0

With a decade of experience in web, mobile, and software development, my team and I have the multi-dimensional skills needed for your cross-platform app project. We are proficient in both native Swift/Kotlin builds and shared-code approaches like Flutter or React Native, having successfully launched over 500 projects with our versatile tech stack. Whether you prefer a lean first release or a more comprehensive approach, we offer unlimited design revisions to ensure your lean app delivers on all fronts. When it comes to in-app purchases, my hands-on expertise in building secure, compliant push notification systems makes us the perfect match. We understand the value of clear architecture and thoughtful user interface designs for snappy, bug-free performances and have a proven track record to vouch for it. As Batch-processing professionals, we prioritize consistent communication throughout the sprint, ensuring that you are always informed about important updates. To top it off, we offer competitive pricing without any compromise on quality - a promise that directly reflects our market-leading designs and robust capabilities.
€250 EUR in 1 day
7.5
7.5

Hello, I can build your mobile app with a clean, scalable architecture that runs seamlessly on both iOS and Android. My preferred stack would be Flutter, as it allows a single codebase while still producing native-like performance, smooth UI, and reliable support for in-app purchases through official plugins. That said, if you prefer native development, I have experience with Swift and Kotlin as well. Questions: – Do you want the first release limited to core features (MVP style) or a broader launch with more advanced functionality? – Should I also set up backend services (e.g., Firebase, AWS, or a custom API) for authentication and notifications? – Do you have a specific launch window in mind, or should I propose a realistic timeline based on scope? 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.
€250 EUR in 7 days
7.3
7.3

⭐⭐⭐⭐⭐ Valuable Client, CnELIndia, led by Raman Ladhani, is well-positioned to turn your unique app concept into a polished cross-platform product. We recommend a Flutter-based approach for a shared codebase with native performance, ensuring smooth operation on both iOS and Android while streamlining development and maintenance. Our team has successfully delivered multiple apps with secure authentication, reliable push notifications, and fully compliant in-app purchase flows. We will start by reviewing your full feature map and UX wireframes to define milestones. Our structured plan includes: 1) UI/UX finalization, 2) core functionality build, 3) TestFlight/Play beta, 4) public launch. Deliverables at each stage will include the source code, compiled builds, and concise hand-off documentation. With clean architecture, rigorous QA, and proactive communication, we ensure your vision is realized efficiently and iteratively. We are ready to discuss timelines and begin immediately.
€500 EUR in 7 days
7.0
7.0

Hello, I understand you have a unique mobile app concept that requires a cross-platform solution. I recommend using Flutter for this project as it allows for rapid development and a smooth user experience on both iOS and Android. This tech stack will ensure we meet your core requirements for secure user authentication, reliable push notifications, and a seamless in-app purchase flow. I have successfully developed live apps with in-app purchases, demonstrating my ability to create polished products. My approach emphasizes clean architecture and thoughtful UI/UX design, ensuring your app is not only functional but also user-friendly. For the timeline, I estimate around 4-6 weeks for the TestFlight and Play beta testing phase, followed by a public launch. Throughout this process, I will provide the source code repository, compiled builds, and a concise hand-off guide for easy maintenance. What specific features do you envision for the initial release besides secure authentication and in-app purchases? Thanks, Shamshad
€750 EUR in 22 days
6.7
6.7

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert
€500 EUR in 7 days
7.0
7.0

Hello there Hope you are doing well as you are looking for a "Build a ANDROID AND IOS MOBILE 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.
€250 EUR in 5 days
7.0
7.0

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Divya
€750 EUR in 7 days
6.4
6.4

⚠️ 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 Audit Mobile app for you and would be happy to discuss those with you. After our conversation, we can start our journey from there Regards
€250 EUR in 3 days
6.9
6.9

Hi There!!! ⭐⭐⭐⭐ (Cross-Platform Mobile App Development) ⭐⭐⭐⭐ I understand you’re looking to bring a fresh app concept to life with a smooth, polished experience on both iOS and Android. Your core needs—secure authentication, reliable push notifications, and compliant in-app purchases—are key to a seamless user journey. Choosing the right tech stack to balance performance, speed, and maintainability is essential. My preferred approach is Flutter for this project because it allows rapid development with a single codebase, excellent UI flexibility, and near-native performance on both platforms. I have built multiple live apps with in-app purchase flows compliant with Apple and Google guidelines. Execution plan highlights: 1. Secure user authentication integration 2. Push notifications setup using Firebase Cloud Messaging 3. Implement in-app purchases with platform compliance 4. Thorough testing on TestFlight and Play Beta 5. Deliver clean code, builds, and documentation at each milestone With over 9 years in mobile development, I bring reliability, clear communication, and quality results. Let’s collaborate and make your app a success! Best Regards, Farhin B.
€256 EUR in 13 days
6.4
6.4

Hello, I have carefully reviewed your project description and am confident that I can deliver a high-quality mobile application development project that meets your requirements and the features you have mentioned. I will start work immediately after receiving your project and can complete it. Additionally, I am available full-time to help clients achieve their goals and deliver 100% satisfaction through my work. If you give me the project, I will try my best. As an experienced mobile app developer focusing on Android and iOS platforms, I've successfully built your applications. Not only am I well-versed in Android and iPhone technologies, but I'm also highly skilled in Objective C, PHP, and capable of integrating features like emails into apps. Leveraging my seven years of experience, I can deliver your desired solution in a timely and efficient manner. Let's talk to have a detailed discussion as soon as possible. Thank You
€250 EUR in 15 days
6.1
6.1

Hi Mate, I came across your mobile app concept and it’s exciting to see you aiming for a polished, cross-platform product. I’ve delivered apps with secure authentication, push notifications, and smooth in-app purchases, so I understand the importance of meeting compliance while keeping the UX frictionless. Here’s how I can support your launch: 1. Build on React Native for shared code efficiency and native-like performance (or adapt if you prefer Swift/Kotlin). 2. Implement robust user authentication and secure purchase flows aligned with Apple/Google standards. 3. Set up reliable push notifications with customizable triggers and analytics tracking. 4. Deliver clean architecture and scalable code for future iterations. Quick questions: 1. Do you want me to suggest an initial UX flow or will you share wireframes at the start? 2. Are you planning phased releases (MVP first, then iterations) or a feature-complete v1? I can share examples of live apps I’ve built with in-app purchases and provide a clear timeline for TestFlight/Play beta to launch. Source code, builds, and hand-off documentation will be delivered at each milestone. Looking forward to shaping your concept into a smooth, reliable product. Best regards, Tejas J
€500 EUR in 7 days
5.8
5.8

Hi there, I have came across ur project i can help u with it as i have great working experience in Swift, Kotlin, Android, iOS Development, Flutter, iPhone, React Native and Mobile App Development. Please have a look at my portfolio: https://www.freelancer.com/u/ayesha0124 Regards,
€750 EUR in 9 days
5.7
5.7

Hi ahfourati, Your mobile app concept sounds exciting, and I appreciate the clarity in your requirements. With extensive experience in cross-platform development, I recommend Flutter for its robust performance and seamless iOS/Android compatibility. We've successfully built multiple apps with secure user authentication, push notifications, and compliant in-app purchase flows. Our approach would include: implementing clean architecture, delivering source code repositories at each milestone, and providing a comprehensive hand-off guide. We've completed similar projects and can share relevant examples featuring successful in-app purchase implementations. For a project of this scope, I'd estimate 12-16 weeks for beta testing and public launch, depending on feature complexity. I'd love to discuss your vision and see how we can bring it to life. Best, Adil
€750 EUR in 7 days
5.7
5.7

Hello, I AM FULL TIME DEVELOPER FOR YOUR PROJECT 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 invoicing MVP app (Flutter/React Native) that ensures Peppol BIS 3.0 compliance and seamless invoice delivery via the Peppol network, with a strong focus on efficiency, scalability, and user-centric design. Core features will include invoice creation with line items, UBL 2.1 XML generation, Peppol Access Point API integration, customer lookup through the Peppol directory, and validation with BIS 3.0 tools. My approach will be to build a clean architecture with secure APIs, ensure smooth mobile integration, and implement automation for accurate compliance handling. By combining technical depth with practical execution, I will deliver a solution that is not only functional but also 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
€300 EUR in 7 days
5.8
5.8

Hello, I bring proven experience in similar projects and can share real examples. By hiring me, you get: ->>1-Year Free Support: Maintenance included ->>On-Time Delivery: Always on schedule ->>Daily Updates: Transparent progress I have carefully reviewed your requirements and am confident I can handle this project end-to-end. With over 10 years of experience in mobile app development, I specialize in cross-platform solutions using Flutter and React Native, ensuring snappy, bug-free performance on both iOS and Android. My approach covers secure user authentication, reliable push notifications, and fully compliant in-app purchase flows, along with clean architecture and scalable code. Key features include user onboarding, in-app purchases, notifications, and admin dashboards, with clear user roles for end-users and administrators. I follow an agile workflow with milestone-based deliveries including source code, compiled builds, and hand-off guides for smooth internal maintenance. Yes, I can handle this project professionally and deliver exactly what you are looking for. Please feel free to connect via chat, InvokeTech I can also make an even punchier 5–6 line version optimized for quick proposal responses. Do you want me to do that?
€300 EUR in 7 days
5.4
5.4

This is exactly the kind of work I love doing. I am confident in delivering a cross-platform app using Flutter. I have experience creating seamless in-app purchase flows and secure authentication in apps. I've successfully developed apps with in-app purchases using Flutter for both iOS and Android platforms. Additionally, my efficient project management ensures timely TestFlight/Play beta and public launch. I’ve done a ton of similar projects off-platform and I always deliver results that meet expectations. I'm happy to offer insight even if you don’t go with me. Regards, Anne S.
€550 EUR in 5 days
5.8
5.8

Hi there,Good afternoon I am Talha. I can work with your project skills Swift, Android, Kotlin, iOS Development, iPhone, Mobile App Development, Flutter and React Native 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
€250 EUR in 10 days
5.5
5.5

With a track record of tackling similar projects, our team is uniquely equipped to address your needs with insight, agility, and a commitment to exceptional outcomes. Our expertise lies in developing clean, professional, and user-friendly applications tailored to meet specific audit requirements. We specialize in creating seamless, integrated, and automated solutions for audit processes, ensuring efficiency and accuracy at every step. We would be delighted to discuss your project in further detail. Best Regards, Desmond
€400 EUR in 7 days
5.5
5.5

Brussels, Belgium
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