OneCall - Multilingual Concierge App Development

@Microlent

Hello! I can design and build OneCall as a clean, client-first concierge app where users get help instantly—no friction, no marketplace complexity, just a smooth ticket + real-time chat experience. My priority will be simplicity for clients and powerful internal tools for your team. Here’s how I’d approach it: • Cross-platform mobile app using Flutter with Firebase (Auth + Firestore) • Guest (anonymous) login + email (Google/Apple optional), role-based access • Ultra-simple client flow: one text input → ticket auto-created → redirected to chat • Real-time chat with history, status awareness, and WhatsApp/Call quick actions • Multilingual UI (FR default, NL, EN) with device detection + manual switch • Admin tools for ticket management, quick replies (multi-language), and provider directory • Secure Firestore rules so clients only see their own tickets; admins see all I’ve built Firebase-based chat and ticket systems where UX clarity and security were critical, and I’m comfortable keeping the client path extremely minimal while hiding complexity behind admin workflows. Let’s open the chat and I can confirm scope, suggest a clean Firestore rule setup, and outline a clear build timeline. Best regards, Jasmin

@infowider11

***** OneCall Concierge Mobile Application **** Hello, How are you? I am able to design and develop OneCall, a clean, scalable, cross-platform (Android & iOS) concierge-style mobile app using Flutter and Firebase, focused on ultra-simple client interaction via ticket creation and real-time chat. The solution will support multilingual UI (FR/NL/EN), anonymous and authenticated access, role-based admin controls, internal service-provider management, and secure, real-time communication. • Concierge-style ticket & chat system • Guest (anonymous) and email login • Real-time messaging • Multi-language UI (French, Dutch, English) • Role-based access (Client / Admin) • Client ticket creation and tracking • Admin ticket management (open, in progress, closed) • Internal service provider directory • Admin quick-reply templates • Google Maps / contact quick actions (WhatsApp & Call) • Push notifications (optional) • Secure Firebase backend • App Store & Play Store ready Let’s chat… Thanks

@AwaisChaudhry

Hello, OneCall aims to be a simple, fast concierge app for Android and iOS. Users write their need in a single field; a ticket is created and a real-time chat with the OneCall team starts. I will build a clean, scalable Flutter app with Firebase (Auth + Firestore), supporting anonymous/login, multilingual UI (French default, Dutch, English) with auto-detect and optional manual switch. The client path will be dominant: splash, landing with two main actions, guest login, and quick access to chat. Admins will manage tickets and providers through an internal admin panel, while clients see only their own tickets. Key features: real-time chat, ticket status (open, in_progress, closed), multilingual admin messages, quick reply templates, provider management, and simple publishing readiness. Deliverables include full source, Firebase access, Android APK/AAB, iOS build, and concise docs for admins and publishing. Would you prefer the admin panel to be inside the app or a separate web tool, and what are the top 3 admin features you must have at launch? Best regards,

@shyamvijaywargiy

Hello , Nice to meet you! I will design and develop mobile application with web admin panel according to your requirement , ping me on chat so we can discuss this more. I am expert and 9 years experienced Android /iPhone app developer with backend work that you are looking for. I will provide you perfect product as you want so you would be happy with it. I am always ready to discuss about your project in detail as well as start from right now. The following are my services that i provide :- 1. Daily or Weekly update. 2. Clean and Robust code. 3. Responsible for communication for more than 15 to 20 hours each day. 4. Free Bug-Fix support for 1 year after completion. 5. Source code delivery. You can have a look at my profile by this link : https://www.freelancer.com/u/shyamvijaywargiy Let's contact me to discuss further details with me. Thanks Shyam

@eclairios

Hello, The OneCall project’s vision for a stress-free, concierge-style mobile app truly resonates. Crafting a client-first experience where users simply state their need and are immediately connected to real-time assistance through a single text field is a compelling challenge. I appreciate the focus on simplicity, performance, and multi-language support for a seamless user journey. 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

@corpmember29

Hello, I have carefully read and fully understood the OneCall concept and scope. This is a client-first, ticket-based concierge app with real-time chat, not a marketplace, and I am aligned with keeping the user flow extremely simple and stress-free. I have 10+ years of experience building scalable mobile and backend systems, including Flutter apps with Firebase Authentication, Firestore, real-time chat, role-based access, and multilingual UI (FR / NL / EN). I will implement anonymous guest flow, secure ticket isolation, admin-only controls, internal provider management, quick replies, and a clean chat-driven experience ready for App Store and Play Store publication. I recommend Flutter + Firebase for speed, scalability, and real-time reliability, with clean architecture, strict security rules, and future extensibility. I will deliver full source code, builds for Android and iOS, and clear documentation for admin setup, provider management, and publishing. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I am confident I can execute this efficiently and professionally. I eagerly await your positive response. Thanks.

@Julian29

Hello, I am an honest, dedicated full-time developer with 11+ years of experience building scalable, user-friendly mobile applications. I have carefully reviewed your requirements and can deliver a performant, clean, and fully multilingual (FR/NL/EN) concierge app exactly as outlined. Framework: Flutter (single codebase for iOS & Android), ensuring smooth performance, rapid iteration, and easy maintenance. Backend: Firebase Authentication + Firestore for real-time chat, ticketing, and data storage. Optional Firebase Cloud Functions for advanced logic (e.g., automatic ticket creation, status updates). Authentication: Anonymous guest login, email login, Google/Apple optional. Multilingual Support: Automatic device language detection, with optional manual switch. UI texts and admin quick replies stored in a translation-ready format. Client Flow: Landing page with “I need help” prominently displayed. Single text field input → ticket creation → real-time chat. My Requests list with ticket status and chat access. Admin Flow: Manage tickets, update status, use quick replies, and manage internal service providers. Admin panel accessible within app or via a separate interface. Database Structure: Firestore collections: users, tickets (with subcollection messages), providers (admin-only). Roles enforced via security rules to restrict access. Notifications: Optional push notifications for ticket replies or status changes. Thanks & regards, Julian

@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 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

@softsolution2000

I have thoroughly reviewed the project requirements for OneCall - Multilingual Concierge App Development. With my expertise in Mobile App Development, Android, Flutter, App Store Optimization, and Database Management, I am confident that I am a perfect fit for this project. I am ready to adjust the budget after discussing the full scope of the project and ensuring it aligns with your needs. My priority is to deliver high-quality work within your budget. Please review my 15-year-old profile to see my extensive experience. Your satisfaction is my top priority, and I am eager to start working on this project. Looking forward to discussing the details and moving forward.

@kamran2012

Hello, I read through your project and you want OneCall, a concierge app where users type their need in one text field and get help through a ticket plus real-time chat with your team, not a marketplace, client-focused with service providers managed internally by admins only. Users land on splash screen with two choices, "I need help" as primary action and "I am a service provider" secondary. Clients continue as guest or login with email, type their request which creates a ticket and becomes first chat message, they're taken directly to chat, see their request list with status open/in progress/closed, chat real-time with your team, use WhatsApp and call buttons. When ticket closes, chat input disables. Admins view all tickets, chat with clients, change ticket status, close tickets, use quick reply templates in three languages, manage service providers internally with name, phone, services, areas, notes, internal rating, search by category/area/name. Service providers submit via simple form, goes to admin for review, not publicly visible. App supports French, Dutch, English based on device language with manual switch option, chat messages not auto-translated. I'll build in Flutter with Firebase for auth and Firestore, clean scalable structure, ready for Play Store and App Store. You get source code, Firebase access, Android and iOS builds, documentation for adding admins, managing providers, publishing app. Looking forward to discussing further. Regards, Kamran.

@Herculesz

Hi The core challenge is delivering an ultra-simple, client-first concierge flow while enforcing strict role-based security and real-time reliability. I build Flutter apps backed by Firebase Authentication and Firestore that handle anonymous users, email login, and admin roles cleanly without leaking data. The solution centers on a one-field request flow that instantly creates a ticket and converts the text into the first chat message. Real-time chat is implemented with Firestore subcollections, optimized queries, and clear status handling to prevent client-side actions like closing cases. Multilingual UI support is handled through localization files with automatic device detection and optional manual switching. Admin-only tools include ticket status control, quick-reply templates, and an internal provider directory invisible to clients. Push notifications and security rules ensure clients see only their own tickets while admins manage the system efficiently. The result is a scalable, store-ready concierge app that keeps the client experience frictionless and focused. Thanks, Hercules

@ciss26

Hello, I hope you are doing well. I understand that you are looking to build a MULTI LINGUAL CONCIERGE MOBILE APPLICATION and I would be happy to help. I have extensive experience in designing and developing Application and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.

@a4logic

Hello, As an accomplished and dynamic team that has led numerous successful mobile app projects, we are highly skilled in Android and Mobile App Development, making us the ideal match for your project. We have excellent command over newer development stacks like Flutter and FlutterFlow, which will ensure top-notch performance and scalability for your app. Additionally, our proficiency in Firebase - including Authentication and Firestore - will provide you with a clean, structured and well-performing backend for OneCall. The multilingual aspect of your app is something we understand fully. Leveraging our expertise in international projects, we guarantee a seamless user experience across the three languages. As effective communication is essential to a concierge service, we won't automate chat translations; instead, ensuring each user gets messages in their preferred language. Another area where we believe we can contribute immensely is with "Admin - Quick Replies" and "Admin – Service Provider Management". As part of our previous projects included developing internal tools like these, we can facilitate the creation of quick chat responses templates in multiple languages that admins can swiftly insert into their chats. Also, our experiences with database structuring will prove invaluable as we help you create efficient user directories for enhanced service delivery. Rest assured that choosing us means not only getting a top-performi Thanks!

@abhisaini0188

Hello, Thank you so much for posting this opportunity. It sounds like a great fit, and I’d love to be part of it! I’ve worked on similar projects before, and I’m confident I can bring real value to your project. I’m passionate about what I do and always aim to deliver work that’s not only high-quality but also makes things easier and smoother for my clients. Feel free to take a quick look at my profile to see some of the work I’ve done in the past. If it feels like a good match, I’d be happy to chat further about your project and how I can help bring it to life. I’m available to get started right away and will give this project my full attention from day one. Let’s connect and see how we can make this a success together! Looking forward to hearing from you soon. With Regards! Abhishek Saini

@rbtech1984

Hello There!!! ⚜️⭐⭐⭐⭐⚜️(( OneCall multilingual client first concierge app with ticket based real time chat ))⚜️⭐⭐⭐⭐⚜️ What makes OneCall compelling is the extreme focus on simplicity. One input, one action, immediate care. That client first flow is rare and needs discipline in both UX and backend structure to avoid feature creep. You are looking for a clean, scalable mobile app where clients can submit a request in seconds, get routed into a ticket with real time chat, and never feel overwhelmed. At the same time, admins need strong internal tools that stay invisible to the client experience. I have worked on Flutter applications backed by Firebase Authentication and Firestore, including real time chat, role based access, and ticket style workflows. I am careful about structuring collections and security rules so clients only see their own data while admins retain full control. Three key features I would prioritize: * Ultra simple client entry flow with guest access and instant ticket creation * Stable real time chat with role awareness and ticket state handling * Multilingual interface with clean separation between UI language and chat content If this aligns with your vision, I would be happy to discuss structure, milestones, and how to keep OneCall fast, intuitive, and store ready. Warm Regards, Farhin B.

@MohammedSabih

Hi, OneCall’s concierge-style approach—one message, instant help, zero friction—is exactly the kind of product where clean UX and solid real-time architecture really matter. I’m Muhammad Sabih, and with 7+ years of experience building mobile apps using Flutter and Firebase, I’ve delivered ticket-based systems, real-time chat, role-based access, and multilingual apps that scale cleanly and stay simple for users. What I’ll deliver for OneCall: ⭐ Pixel-perfect Flutter app for iOS & Android ⭐ Firebase Auth (guest + email) and secure role enforcement ⭐ Real-time ticket + chat system with clean UX ⭐ Multilingual UI (FR, NL, EN) with device detection ⭐ Admin tools for ticket control, quick replies, and providers ⭐ Store-ready builds with clear documentation I focus on simplicity for clients and power where it belongs—behind the scenes. Let’s align on milestones and get OneCall launch-ready.

@Mahihassi

As a seasoned software engineer specializing in Android and Flutter app development, I am confident in delivering an exceptional solution for your OneCall project. My experience in developing scalable, performant mobile applications aligns perfectly with your needs. I have a wealth of knowledge in Firestore and Firebase authentication, which are crucial components of this project. Notably, my familiarity with internationalization (i18n) techniques would be invaluable for implementing the multi-language support requirement. Moreover, my background in embedded systems and firmware development contributes significantly to my proficiency with low-level programming languages like C/C++. This technical aptitude shines through in my work as I am able to create structured and efficient code necessary for clean app architecture. Additionally, my experience developing IoT applications reflects the level of complexity I am adept at handling; thus, making me capable of balancing the intricate interconnectedness of features in OneCall.

@DeveloperStation

Hi Adam, We’ve developed similar concierge-style apps, including a multilingual solution called “Descripio” that connects experts with users for on-demand consultations. We understand the importance of a seamless user experience, especially for busy clients who want to quickly describe their needs without distractions. With our extensive experience in building scalable, production-ready apps, we can deliver a robust solution that meets your requirements. We also have a dedicated team of UI/UX designers to ensure the app is visually appealing and user-friendly. 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 eager to learn more about your exciting project. Best, Adil

@codefusion53

Hi I can develop OneCall, a performant and scalable concierge-style mobile app for iOS and Android using Flutter with Firebase for authentication and Firestore for real-time chat and ticket management. The app will prioritize a clean, client-first experience where users can quickly create requests, chat with the OneCall team, and track ticket status, while admins manage providers, tickets, and quick replies through role-based access. The app will support French, Dutch, and English with automatic device detection and optional manual switching. Clients can continue as guests or log in via email, while all chat messages, ticket creation, and status updates are securely stored in Firestore. Admins will have tools for provider management, ticket assignment, internal notes, and multilingual quick replies. Push notifications can be included for ticket updates and admin responses. I will deliver fully documented source code, Firebase setup, Android build (APK/AAB), and iOS build (TestFlight/archive), with a simple, extendable UX that keeps the client flow extremely intuitive while separating secondary admin functions. Best, Justin