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Our design conference runs for two days next month and we need a small companion app for attendees. It must show the programme, let people mark the sessions they want, and remind them before those sessions start. There is no login, no payment, and no attendee database, and we do not want any. The programme lives in a file we can edit on our own website, and the finished app must be able to be published on Google Play and the App Store under our accounts. • Programme: two days of sessions with time, room, track, and speaker, grouped by day and filterable by track. • Session detail: description, speaker biography, room, and a button to add the session to My Schedule. • My Schedule: the attendee's saved sessions, kept on the device, with a warning when two of them overlap. • Reminders: a local notification ten minutes before each saved session, working while the app is closed. • Offline: the whole programme readable with no connection, including a bundled copy so a first launch works before the venue Wi-Fi does. • Content updates: the app reads a JSON file we host, so we can correct a room or a time without a new app version. • Deliverables: Flutter source, the JSON format documented for our team, and the app registered in both consoles under our accounts. Acceptance criteria: the store builds install on a clean iPhone and a clean Android phone; the programme, session detail, and My Schedule work with the device offline; a saved session produces a reminder at the right time with the app closed and after a restart; a broken or unreachable content file never leaves a blank screen; no attendee data leaves the device; and both store entries are complete with the uploaded builds accepted by the consoles. The engagement ends at registration and upload. We submit for review and choose the launch date.
Project ID: 40714355
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Two days is realistic for this scope precisely because of what it does not contain: no accounts, no server to build, no payments, and no analytics. One Flutter codebase, a plain data model loaded from your JSON file, favourites stored on the device, and the platform's own local notifications. The programme also ships inside the app as a fallback copy, so a first launch with no signal still shows both days, and the hosted file is treated as an update rather than a requirement. Day one gives you a build you can install and read through end to end; day two covers reminders, the failure cases, store assets, and registration in both consoles under your accounts. Because the app collects nothing, the store forms stay short and honest. For this to fit in two days, three things must be ready before day one: an active Apple Developer Program membership and Play Console account with me invited, your programme content in any form I can convert, and your logo and brand colour. Enrolment approval can take several days on Apple's side and is outside my control.
$50 USD in 1 day
0.0
0.0
164 freelancers are bidding on average $166 USD for this job

The app needs to stay dependable when conference Wi‑Fi fails, when your JSON file is temporarily broken, and when attendees rely on reminders with the app closed. That is the part that usually causes trouble in event apps, so I’d build this around a bundled offline dataset first, then layer remote JSON refresh, local schedule storage, overlap checks, and device notifications on top. I’ve handled mobile builds where content is driven from editable JSON/API sources and the real work is not the screens alone, but making the app fail safely and still feel reliable on both Android and iPhone. Your acceptance criteria are clear, which is helpful because store-ready builds, offline behavior, and local-only data handling can all be tested against a fixed checklist. I can also document the JSON structure clearly for your team so schedule edits stay simple after handoff. - Do you already have the session artwork / branding assets for the store listings and app UI? - Should track filtering allow multiple tracks selected at once, or one at a time? - For reminders, should users be able to change the 10-minute timing later, or keep it fixed exactly as specified?
$240 USD in 7 days
9.3
9.3

I propose a cutting-edge companion app for your design conference, developed using Flutter for cross-platform compatibility. The app will display the programme, allow attendees to mark sessions, set reminders, access session details offline, and receive notifications for upcoming sessions. By leveraging JSON for easy content updates and ensuring data privacy, the app will streamline the conference experience. Comprehensive documentation and assistance with app store registration will be provided for a successful launch. I am dedicated to exceeding your expectations and look forward to collaborating with your team for this project and future endeavors.
$225 USD in 5 days
8.6
8.6

HEY I BUILD OFFLINE-FIRST FLUTTER APPS THAT KEEP EVENT CONTENT AND REMINDERS RELIABLE EVEN WITHOUT VENUE INTERNET. I can build your lightweight two-day conference companion app in Flutter with no login, payment, attendee database or cloud user data. {{{ I HAVE CREATED SIMILAR EVENT, SCHEDULE AND OFFLINE-FIRST MOBILE APPS BEFORE AND I CAN SHOW YOU RELEVANT WORK. }}} I have 12+ years of IT experience across Flutter, mobile development, APIs and app-store deployment. Core workflow: Programme → Browse by day/track → Session detail → Add to My Schedule → Local reminder 10 minutes before → Attend. I will implement: * Two-day programme with time, room, track and speaker * Track filtering and detailed session/speaker information * Device-only My Schedule with overlap warnings * Local notifications working while app is closed/restarted * Fully offline programme with bundled fallback JSON * Hosted JSON sync for room/time/content corrections * Safe fallback when hosted JSON is broken/unreachable * No attendee data leaving the device * Clean responsive iOS/Android UI I will document the JSON structure so your team can update programme content independently. Deliverables include Flutter source, configured builds, App Store Connect and Google Play registration/upload under your accounts, and complete store submission setup. You will retain control of final review and launch timing. Thanks, Christina
$140 USD in 7 days
8.4
8.4

Hello, I checked your "Flutter Mobile App Project" project description, it looks like the focus is on delivering a clean, responsive website that works well across all devices. I prefer understanding the expected layout and user experience first, then building pages that closely match the design while keeping the code organized and easy to maintain. Feel free to share the design or current website, and I'll suggest the best implementation along with a realistic timeline. Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$150 USD in 6 days
7.8
7.8

Howdy, Since the app must work fully offline and never collect attendee data, I would keep the architecture lightweight, Flutter with a bundled programme fallback, locally stored My Schedule and device level notifications. The hosted JSON can be checked for updates when available, while malformed or unreachable content falls back to the last valid or bundled programme. I can structure the JSON format clearly for your team and handle the Android/iOS builds, signing setup, and registration/upload under your developer accounts. Reminder logic will be tested with the app closed and after device/app restarts, including overlapping-session warnings and offline behaviour. I can also show you similar offline/mobile app examples in chat. Before starting, could you share the current programme JSON or a sample so I can confirm the data structure? Portfolio: https://www.freelancer.com/u/Hammadhassan21 Best regards, Hammad Hassan
$300 USD in 12 days
7.7
7.7

Hello Naeem Okpara, I am very interested in developing your Flutter companion app for the upcoming design conference. With over 10 years of full-stack experience and extensive expertise in Flutter, mobile app development, JSON integration, and push notifications, I am well-equipped to deliver the precise functionality you require. This app will feature offline-capable program browsing with a bundled JSON copy, dynamic content updates from your hosted JSON file, local storage for personalized schedules with conflict warnings, and reliable local notifications triggering even when the app is closed or restarted—all implemented according to your strict privacy requirements with zero server-side attendee data. I will provide fully documented Flutter source code, a clear JSON schema that your team can easily edit, and complete submissions to both Google Play and Apple App Store under your accounts. Rigorous testing on clean iOS and Android devices will ensure seamless program display, reminder functionality, and fault tolerance when content updates fail or are unreachable. I am committed to clear communication and timely delivery so you can confidently submit the app for review and select the launch date with complete peace of mind. Best regards, Özgür
$100 USD in 1 day
7.9
7.9

What matters here is not just showing a two-day programme, but making sure attendees can trust the app offline, save sessions without conflicts slipping by, and still get reminders after closing the app. I’d approach it with a local-first Flutter build: bundled schedule data for first launch, on-device saved schedule, overlap detection, then a safe JSON refresh layer so a bad file never breaks the experience. I’ve worked on app flows where local notifications, cached content, and publishable builds were the real success points, especially when the client wanted no login and no server-side attendee data at all. That fits your brief well because the app can stay lightweight, privacy-safe, and easier to maintain for future events. The JSON handover can be kept very simple so your team can edit rooms or timings without touching the app code. - Will the hosted JSON always be a single file, or do you want speakers/sessions split into separate files? - Do you want speaker bios and session descriptions to support basic formatting like line breaks? - Will you provide the Apple and Google console access when it is time to register and upload the builds?
$235 USD in 7 days
7.4
7.4

Hi I can develop your Flutter mobile app with a clean responsive UI, smooth performance, secure API integration, scalable architecture, and polished Android/iOS functionality tailored to your requirements. Kundan
$120 USD in 4 days
7.5
7.5

Hello, As a seasoned developer with over a decade of experience, I've honed my skills to specialize in projects just like yours. I've got an exceptional understanding of mobile development and I can assure you that your Flutter Mobile App Project will be in good hands. My fluency with Android, JSON and extensive knowledge in Mobile App Development is definitely an asset for this project. I'm meticulously detail-oriented - a skill that will be of utmost importance for designing an app that directly syncs with the programme you've set up for your design conference. Not only can I guarantee a clean and maintainable code, one which allows you to independently update your programme on our shared cloud, but also ensure that there is no blank screen or any loss of information despite a broken or unreachable content file. What sets me apart is my commitment to delivering quality products while providing absolute client satisfaction along the way. I don’t consider the completion of engagement as the end of the job but rather believe in establishing long-term relations by offering limitless post-production support. With me by your side, you can trust that your app will be published seamlessly on both Google Play and the App Store under your accounts without worrying about technical glitches or acceptance issues Thanks!
$130 USD in 2 days
7.2
7.2

Hi, We can build your two-day conference companion app in Flutter with no login, no attendee database, and full offline usability. I’ll implement schedule browsing (grouped by day + track filters), session detail pages, and “My Schedule” stored on-device with overlap warnings. For updates, the app will safely fetch and parse your hosted JSON, show a bundled fallback on first launch, and avoid blank screens with robust error handling. Reminders will use local notifications scheduled per saved session so attendees get alerts even after an app restart. Next step: confirm the JSON fields you’ll host and the desired app name/icons, then I’ll deliver a working first build plan within 48 hours and start coding, Excited to start—what exact JSON schema (fields/types) will your website host for program + sessions, so I can map App Design and Flutter screens precisely? Best regards, KANIKA On-Time Project Delivery with Quality You Can Trust.
$180 USD in 14 days
6.8
6.8

Hello, I understand that you require a Flutter mobile app for your upcoming design conference. The app will serve as a companion for attendees, providing program details, session scheduling, reminders, and offline access to the program information. I will ensure that the app is user-friendly, efficient, and meets all your requirements without the need for login or payment features. With expertise in Graphic Design, Mobile App Development, Android, iOS Development, App Design, Flutter, and iPhone development, I am confident in delivering a high-quality and functional app for your event. Effective communication and collaboration will be maintained throughout the project to ensure your satisfaction. Please find my portfolio for your reference: https://www.freelancer.com/u/Curveballsol Best regards, Curveball Solutions
$90 USD in 2 days
6.4
6.4

Hi, I can build your lightweight Flutter conference app for both iOS and Android, keeping the architecture simple, offline-first, and completely free of login or attendee data collection. Key implementation: • Two-day programme with day/track filtering and session details. • Local “My Schedule” saved on-device with overlap detection. • Local notifications 10 minutes before saved sessions, including after app restart/when closed. • Bundled JSON programme for reliable first launch and full offline access. • Hosted JSON sync for room/time/content corrections without requiring a new app release. • Safe fallback handling so an unavailable or broken JSON never results in a blank screen. • No attendee information leaves the device. • Clean Flutter source with documented JSON structure for your team. • App Store Connect and Google Play Console setup, builds, signing and upload under your accounts. I’ll test the acceptance scenarios on clean iOS and Android devices, including offline mode, notification timing, restart behaviour and content fallback. I can start immediately and take the project through development, testing, registration and build upload, leaving review submission and launch timing to your team. Best regards, Kalpana
$250 USD in 7 days
7.0
7.0

Hi, We built and shipped the companion mobile app for a two day, multi track finance summit, handling programme and attendee engagement for a premier MENA event, so the shape you describe is familiar work. ADFW: proof of a real conference mobile platform. One thing worth deciding early: the reminder while the app is closed and surviving a restart. On iOS, local notifications get scheduled for each saved session and survive relaunch, but iOS caps pending notifications, so with two full days of sessions I schedule only the saved ones and reschedule on launch. For the JSON, I bundle a copy in the build so first launch works offline, then fetch and cache your hosted file, and fall back to the last good copy if it is broken or unreachable, never a blank screen. Do you want My Schedule overlaps blocked or just warned? Which console accounts, existing or new, should the builds go under? Adil
$154 USD in 7 days
6.3
6.3

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
$30 USD in 1 day
6.9
6.9

Flutter-based companion app for your two-day conference with offline access, session tracking, and reminders. I’ll design a clean, attendee-friendly UI with strong graphic design, optimized for iPhone, and implement a maintainable Flutter codebase that can publish to Google Play and the App Store under your accounts. - Flutter app for iOS/Android that reads a hosted JSON file for the programme; the app works offline on first launch and continues to function without a network. - Session list with day grouping, track filtering, and session detail including speaker bio and room. - My Schedule stored locally on the device; attendees can add sessions and receive an overlap warning before conflicts occur. - Local notifications scheduled 10 minutes before saved sessions; reliable even when the app is closed or after a restart. - Content updates via a JSON file without requiring a new app release; no attendee data leaves the device. - UI/UX designed with modern typography and visuals that align with your branding while ensuring accessibility on iPhone and Android. - Deliverables: Flutter source, JSON format documentation for your team, and builds uploaded to Google Play and Apple App Store consoles under your accounts. - Proposed budget: $6,500; Timeline: 4 weeks with clear milestones and QA. Portfolio: https://www.freelancer.com/u/zarminagull189
$190 USD in 3 days
5.9
5.9

Hello, With over 7 years of experience in mobile app development, I specialize in creating user-friendly and efficient applications. I have carefully reviewed your project requirements for the Flutter Mobile App Project and I am confident in providing a professional solution tailored to your needs. I understand the importance of creating a companion app for your design conference attendees that will display the programme, allow session selection, and provide timely reminders. My approach will ensure that the app meets all your specifications, including offline functionality, content updates, and seamless integration with Google Play and the App Store. I would love to discuss this project further with you. Please start the chat so we can explore the details and move forward with the development process. Best regards
$99 USD in 7 days
6.1
6.1

Greetings, I have a clear understanding of your Flutter Mobile App project for the design conference, focusing on providing attendees with a seamless experience to access the program, mark sessions, and receive timely reminders. My approach involves structured requirement confirmation, controlled planning, clean implementation, testing & validation checkpoints, and milestone-based transparency to ensure successful delivery. With a strong background in Mobile App Development, Graphic Design, and App Design, I am well-equipped to meet your objectives and provide long-term results. My portfolio: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ To align with your business goals effectively, could you please clarify your top priority for the app? I invite you to open a chat to finalize the scope smoothly. Best regards, Muhammad Anas Khan
$90 USD in 4 days
5.8
5.8

FLUTTER EXPERT is here to deliver this best services--------------->>This is a well-scoped offline-first Flutter app where reliability matters more than backend complexity. The key is making the programme, local schedule and notifications work entirely on-device, even without venue Wi-Fi or an active internet connection. I can build the Flutter app with bundled JSON fallback, hosted JSON updates, track filtering, conflict detection, local reminders, offline session data and graceful handling of unavailable or invalid content. I will also prepare the Android and iOS builds and register/upload them to your Google Play and App Store accounts. My query: Is the hosted JSON already available, or should I define the JSON structure and provide the implementation/documentation for your team? Please ping me to get started and get outstanding results. Thanks!!!
$140 USD in 7 days
5.9
5.9

Hello, As a seasoned developer, I believe I am the perfect fit for your Flutter Mobile App Project. With over 16 years in the field, my technical skills and experience are precisely what you need to bring your design conference companion app to life. Not only do I have a deep understanding of various programming languages and frameworks, but I also have solid expertise in relevant technologies like PHP and MongoDB, which would be invaluable for implementing the programmatic functionalities of your app. In addition to my technical prowess, I'm highly experienced in delivering scalable solutions with seamless functionality and user experience. Building an offline-first app that keeps data locally, ensuring that everything functions even without an internet connection is definitely one of my fortes. Plus, I've successfully implemented local notifications integrated within a time-sensitive task before - much like the reminders you need for your attendees - making me confident in handling that aspect effectively. Lastly, being someone who values client satisfaction above all else, I understand and respect your need for confidentiality with attendee data. You can trust that no data will ever leave the device or be compromised in any way. All my work undergoes stringent quality assurance checks, making sure everything runs smoothly before delivery. Thanks!
$155 USD in 2 days
6.0
6.0

I'm Vimal, an experienced Full Stack Developer proficient in Mobile App Development with Flutter. With more than 8 years of experience and over 200 successful projects under my belt, I have the skills and expertise necessary to turn your design conference app idea into a reality. My versatility and familiarity with Flutter make it second-nature for me to create clean, efficient code and intelligent architecture that will ensure your app functions flawlessly. One of the essential features your project requires is offline capabilities. I assure you that attendees will be able to access the entire program even without an internet connection, ensuring a smooth user experience throughout the conference. Moreover, as you desired a notification function, I can implement local notifications that remind users about their scheduled session ten minutes prior - even when with the app closed or their device restarted. Aside from my technical mastery, I am known for my strong communication skills and 97% on-budget delivery. Throughout the development process, I'll keep you constantly updated and involved while adhering strictly to project timelines to guarantee a seamless result. Let's get started on turning this vision into an app that perfectly aligns with your needs; together we'll build an amazing companion app for your conference!
$189 USD in 7 days
5.9
5.9

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