Cross-Platform App.

@Microlent

Your backend being already live changes the project significantly: the mobile app should stay focused on authentication, shift visibility, schedule-change notifications and one-tap start/finish timestamps, rather than duplicating business logic. I’d use Flutter for a single Android/iOS codebase, with a clean API layer, secure session handling, local caching where useful, and FCM/APNs integration. I’d also keep the implementation aligned with your existing REST contracts so there is no unnecessary server-side work. Before committing to the final scope, I’d validate the authentication, shift, timestamp and notification endpoints against a test account. That is particularly important for schedule-change notifications, since the backend needs to already support device registration/notification triggering. I can provide the repository, Android AAB, iOS release build, setup documentation and TestFlight/internal testing build as requested. One question: does your existing API already handle FCM/APNs device registration and trigger notifications when an employee’s shift changes? If you share the API documentation, I can review the mobile-side scope with you and suggest the cleanest implementation approach.

@KeshavInfotech

Hi, Your main risk is ensuring the app flow stays stable with clean auth, reliable API calls, and timely shift updates without adding backend work. I would first secure the login-to-shift-plan path, then make sure timestamp actions and notifications remain reliable even on weak or offline connections. I can build the front end as a single codebase and keep the API layer clean so every request uses your existing endpoints correctly. My focus would be login, shift plan loading, one-tap start/finish timestamp capture, push notifications, and a simple calendar-style view for past and upcoming shifts. Relevant skills and experience: - Username/password authentication - Shift planning and calendar views - Shift history and upcoming shift display - Start/finish timestamp functionality - Push notification integration - Strong API-driven frontend development Timeline: I can start immediately and begin with the core flow first: auth, shift loading, and timestamp actions, then move to notifications and shift history/calendar views. One quick question: does your backend already provide notification trigger data, or should the app infer shift changes by polling the API?

@om26er

Hello, i am ready to start the development of Employees app for you Cleaning company. Regarding your project, i would like to discuss the app features in detail to better understand your requirements. i am a mobile applications developer and i have more than 8 years of experience developing mobile applications with backend services. i have developed many Business Solutions from scratch to Stores ready applications. i have completed more than 550 projects. i have live sample apps for you. i am super confident i will provide you best quality software services on time and on budget. Let's chat to proceed.

@corpmember29

Hello, >>>> Multi languages (English and Germany ) <<<< CROSS-PLATFORM APP {{{ I HAVE EXPERIENCE BUILDING CROSS-PLATFORM MOBILE APPS, REST API INTEGRATIONS, AUTHENTICATION AND PUSH NOTIFICATIONS BEFORE AND I CAN SHOW YOU }}} I carefully reviewed your requirements and understand that you need a clean Android and iOS app connected to your existing REST API for employee shift management, notifications, calendar-based schedules, and one-tap start/finish time tracking. I am having 11+ years of professional experience and can build this using Flutter or React Native with a single maintainable codebase. I will integrate your existing authentication and API endpoints, implement shift updates with push notifications, calendar views for upcoming and completed shifts, and reliable timestamp submission. I can also provide the AAB and IPA release builds, test builds through the appropriate store channels, complete source code, setup documentation, and a recorded walkthrough. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. I am available to start immediately and can share relevant cross-platform mobile app examples. Thanks, Christina

@diektech

Hi — Elias here from Miami. I see you're looking to build a cross-platform app with a documented REST backend. The main goal is to create a seamless user experience on both Android and iOS. What usually matters most here is ensuring the app handles user roles and permissions effectively. A common issue in systems like this is managing the complexity of integrating the frontend with your backend while maintaining a smooth workflow. The tricky part is usually ensuring maintainability and scalability for future updates. To tackle this, I would use React Native for its flexibility and community support. This approach allows for code sharing between platforms while ensuring performance. I focus on building modular components for easy maintenance and scalability, keeping user experience in mind. I've worked on similar projects where integrating REST APIs was crucial for real-time data access, ensuring reliability and efficiency. A few questions to better understand the scope: Q1 – What specific user roles do you envision for the app, and how should they interact with the system? Q2 – Are there any particular integrations or third-party services you anticipate needing? Q3 – What are your scaling expectations as the user base grows? Happy to discuss the details and suggest the best technical approach. Looking forward to hearing from you.

@irsolutions

With over a decade of experience in full-stack architecture and high-scale systems, I understand your need for a cross-platform app that brings your backend to users efficiently. Your project goal of creating a user-friendly app for cleaning company employees aligns perfectly with my background in developing high-complexity systems for over 1 million users and implementing secure FinTech solutions. A strategic insight for ensuring scalability and security in this project is to prioritize efficient data handling and seamless user authentication. Leveraging my past success in building apps with similar functionalities, I am confident in delivering a reliable solution that meets your requirements seamlessly. I am excited to collaborate on this project and turn your vision into reality. Please feel free to reach out to discuss the roadmap further and get started on creating the cross-platform app for your cleaning company employees.

@shubhamshrimal7

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your mobile app project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham

@ozbas

Dear Client, With over 10 years of Full-Stack software engineering experience, I am confident that I can swiftly and effectively assist you with your Cross-Platform App project. My skills lay primarily in Hybrid app development, especially in the Flutter and React Native field. As your project requires a cross-platform stack, my proficiency in these technologies will be crucial for delivering the kind of quality work you can expect. Apart from that, I have ample expertise developing apps with the capabilities you require. Handling user authentication, push notifications, and offline data sync are all areas I am comfortable and experienced in. In fact, I can show you some similar utility apps I've built to give you a better idea of what I can bring to your project. Additionally, my commitment to providing clean, well-commented code, offering comprehensive documentation and brief setup/readme along with providing a recorded walkthrough of the implementation process truly sets my work apart. It helps both you and your team maintain your app long after my task is complete. Let's discuss more about how I can satisfy your need for a reliable and efficient front-end that communicates smoothly with your existing backend to provide a smooth employee experience for the cleaning company - be it through Android or iOS platforms. Warm regards, Özgür

@Hammadhassan21

Hey, This app is intentionally focused on giving cleaning staff a quick way to check their shifts and record working time without adding complexity. I’d build the mobile experience around that workflow, keeping the calendar fast, notifications reliable, and time-stamp actions simple enough to use during a busy shift. I will develop the shared Android/iOS app, connect authentication and every data action to your existing REST API, build the shift calendar with past and upcoming shifts, implement plan-change push notifications, and add one-tap start/finish timestamps. I’ll also provide release builds, source code, test distribution, and a recorded handover. I can share relevant mobile app examples during our discussion. One quick question: Does your existing API already provide push-notification events or device-token registration endpoints? Portfolio: https://www.freelancer.com/u/Hammadhassan21 Best Regards, Hammad Hassan

@starttechno

Your live REST backend can remain the single source of truth while I build one cross-platform employee app for Android and iOS. I would use Flutter to produce both the AAB and IPA from one maintainable codebase, with a clear API service layer so every authenticated request goes through your existing endpoints. The app will include username/password login with secure token storage, a calendar-style shift plan showing upcoming and completed shifts, and one-tap start/finish timestamp actions with clear success/error feedback. For plan updates, I will configure push notifications through Firebase/APNs and refresh the relevant shift data when a notification is opened. I will also add local caching so employees can still view their most recently synced schedule when connectivity is limited, while timestamp submissions are handled safely according to the API’s capabilities. I have extensive experience delivering REST-driven mobile apps with authentication, notification flows, and release preparation. The handoff will include a clean repository, commented setup documentation, release builds, a recorded local-run walkthrough, and one TestFlight/internal-track verification round before final delivery. For shift-change notifications, should employees receive an alert for every update, including small time edits, or only when a shift is added, cancelled, or materially changed? Muhammad Saad

@softsolution2000

Hi, since your REST backend is already live and documented, this is really just a clean React Native front-end that authenticates, pulls the shift calendar, and fires the one-tap start/finish timestamp back to your endpoints. I'd use React Native so you get one codebase for both AAB and IPA builds, with push notifications for plan changes and local caching so a shift someone already clocked isn't lost if they open the app with no signal. We've built similar utility apps for field/shift-based teams handling auth and offline sync, so this pattern isn't new to us. Happy to do a small working demo first, login screen plus shift list hitting your API, so you can see how we work before committing to the full build. Can you share the API docs so I can scope the auth flow properly?

@gotucat

Hi, I reviewed your REST-based backend project and need an Android and iOS front-end that uses the same documented API for employees. The app will support username/password login, show the shift plan calendar, notify users when their plan changes, display finished shifts, and record one-tap start/finish timestamps to your existing endpoints. I’ll build a single cross-platform codebase (Flutter or React Native style) so both stores’ binaries are produced from one repository. I’ll wire authentication through your current API layer only, implement push notifications for plan changes, and include offline-friendly caching for the shift screen. You’ll get clean, well-commented source, release-ready AAB/IPA builds, and a short setup guide with a walkthrough for your team. Let’s discuss here now.

@zainalitariq245

Respectfully, I thoroughly reviewed your project requirements about a cross-platform employee app for shift planning, schedule-change notifications, calendar-based shift history, and one-tap start/finish time tracking through your existing REST API. I’ll build it with Flutter using a single codebase for Android and iOS, integrating your existing authentication and APIs, Firebase Cloud Messaging for push notifications, and local caching for reliable shift access and sync. I’ll provide release builds, TestFlight/internal testing, source code, and a clear handoff walkthrough. Is the existing API already prepared for push-notification events when a shift changes? I have recently developed similar employee utility apps with authentication, push notifications, API integrations, and offline data handling and can deliver the same quality solution. Portfolio: https://www.freelancer.pk/u/zainalitariq245 Thanks.

@efanntyo

Hi there, I am excited about the opportunity to work on your cross-platform app project. With a strong background in mobile app development, I have extensive experience in crafting seamless Android and iOS applications using frameworks like Flutter and React Native, which aligns perfectly with your requirement of a single codebase for both platforms. I understand the importance of creating an intuitive app for your cleaning company's employees, focusing on core features like shift planning, push notifications, and timestamp capturing. My approach will include developing a user-friendly interface that seamlessly integrates with your existing REST-based backend, ensuring secure authentication and efficient data synchronization. I've previously delivered utility apps that incorporate authentication, push notifications, and offline data capabilities, ensuring smooth operation even in challenging network conditions. These experiences equip me with the necessary skills to deliver a high-quality product that meets your needs. Upon initiation, I will provide well-documented, clean code along with Android and iOS builds ready for store submission. A comprehensive setup guide and a walkthrough video will be included to facilitate your team's understanding and deployment. I am eager to apply my expertise to bring your project to life and ensure a timely and successful delivery. Looking forward to the possibility of collaborating with you. Best Regards, Efanntyo

@n2rtechnologies

Hi, Quick one: when a shift plan changes, do you want push notifications only, or should the app also sync silently in the background so employees see updates even if they don't tap the notification? We've built several driver and logistics apps with authentication, real-time updates, and offline-capable calendars — your shift tracker fits right in our wheelhouse. The budget and timeline shown are just a starting point; once we nail down notification behavior and how much historical shift data loads on first login, I'll send you a real quote. Regards, Nurul Hasan

@mobiappsoftware

As someone with 8+ years of experience in mobile app development, I am well-versed in both Android and iOS platforms. I have a deep understanding of creating clean, well-documented code that aligns with backend APIs, doing away with any extra server work. My expertise has enabled me to successfully develop similar apps that share key functionalities with your project - user authentication, push notifications and offline data sync - providing me the confidence to deliver the same or even better for you. My skills in Android, Flutter, iPhone, Kotlin and React Native align perfectly with your cross-platform demand, enabling me to produce binaries for both stores from a single codebase. Collaborating with me will ensure diligent media for your cleaning company's employee management apps. With minimal turnaround time and extensive quality checks/tests, I assure you a smooth process from setup to submission on both Android (AAB) and iOS (IPA). A discounted rate for the substantial work volume that comes up during this project gives us an opportunity for long-term collaboration once the initial task is done too. Let's make this project move quickly - 'Hire Me!' today and see your idea transform into a functional reality.

@shivmirthyusl

Hi, As an experienced web and mobile app development company and a skilled team of 40+ professionals, my track record speaks for itself. We have successfully delivered 483+ projects that implemented advanced functionalities like the ones you require. We specialize in cross-platform app development using stacks like Flutter, React Native, Kotlin Multiplatform and more. Authenticating users, syncing offline data and handling push notifications are bread and butter for us. We have developed similar utility apps in the past, ensuring rich user experiences while simultaneously respecting strict business requirements. Moreover, we understand the importance of clean, well-commented code that's easily understandable by your team. I also assure you that our expertise extends to providing step-by-step setup instructions and a comprehensive walkthrough to ensure a seamless handoff experience. With IT Flex Solutions India by your side, not only will you get top-notch Android (AAB) & iOS (IPA) release builds, but also dependable support even post-project completion. Let's turn your idea into a powerful cohesive digital solution! Thanks, SBM

@pauldinhdev

Hi, Canada-based developer here. It sounds like the core challenges are reliable auth + token handling, timely push notifications when plans change, and robust one-tap time stamping that works offline and syncs cleanly. I’ve built similar employee shift apps (single repo, cross-platform) where offline punches and server-driven schedule updates were the main pain points. I’d use a single codebase (Flutter or Kotlin Multiplatform depending on your preferences) and focus first on: - secure username/password auth and token refresh flow - push token registration + notification handling - offline-first timestamp capture with conflict-safe sync A couple of quick questions: 1) Does your API already accept device push tokens and provide change notifications, or will we register endpoints as part of the work? 2) For offline timestamps, should the app resolve conflicts automatically (last write wins) or prompt users/admins? Thanks, Paul

@ciss26

Hi there, Hope you are doing well I’d love to develop the cross-platform employee app for your cleaning company and connect it directly with your existing documented REST API. Since your backend is already live, I can focus on delivering a polished, reliable mobile experience without introducing unnecessary server-side complexity. Recommended Tech Stack Flutter + Dart would be my preferred choice because it allows us to maintain a single codebase for both Android and iOS while delivering consistent UI, strong performance, and easier long-term maintenance. Mobile: Flutter / Dart API: Existing REST APIs Core Features Employee Authentication Username/password login Secure session/token handling Logout and session management API-based authentication for all requests Shift Calendar Upcoming shift schedule Completed/past shifts Calendar and list views Shift details and relevant information Automatic refresh from your existing API Shift Change Notifications Push notifications when schedules change Notifications for newly assigned or updated shifts Deep linking from notification to the relevant shift Time Tracking One-tap Start Shift One-tap Finish Shift API submission to your existing endpoints Clear success/error feedback Prevention of accidental duplicate submissions Thanks & Regards Dheeraj K.