Simple crowd-sourced data collection app with offline support

** Note that this project will NOT be awarded until July 6th, and the expected completion date is August 17th.**

This app will collect crowdsourced data. It is to be build in React Native and use Google Firebase, and be compatible with iOS and Android. End users will login with phone # / sms confirmation. Users will then be displayed a form that asks them to provide the following types of data for each crowdsourced data point submission: location (from GPS, user-adjustable on a map), picture, free-formed text, checkbox, and radio button. The exact fields, field names, descriptions, and validation requirements must be admin-configurable (and not hard-coded). Finally, you must also develop a simple HTML/JavaScript page that a) allows the admin to configure these fields, and b) allows them to export all data as a .CSV.

Upon clicking "submit", the app attempts to upload data to the server. If there is no internet connection, then the app should hold the data point in an "outbox", and upload it at the next available opportunity. As such, the app should be fully functional offline. (Note that Firebase makes working with offline data easy: [login to view URL])

Additional requirements: The cross-platform iOS and Android app is to be built in React Native and use Google Firebase as the backend. As such, you will be responsible for designing the database structure. In addition, the app must also be compatible with screen readers (e.g. VoiceOver and TalkBack). I will provide all graphics, colors, etc... Successful completion of the app will require acceptance of the app to Google Play and the Apple App Store. (I will actually submit the app, but will not release the final milestone payment unless the app is accepted).

Finally, you must demonstrate how the app (and firebase backend) can be extended to develop version 2 of this app. Note that you are NOT responsible for developing version 2; simply, you must show that your design choices would support these features without reworking of code.

* Allow end-users to view the data they reported, and data that others reported, both in a list view and on a map.

* Profile screen for users (e.g. photo, name, etc...)

* Single sign on with google and/or facebook

Please contact me with any questions.

Habilidades: Google Maps API, Mobile App Development, React.js

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Acerca do Empregador:
( 5 comentários ) Needham, United States

ID do Projeto: #17143840

17 freelancers estão ofertando em média $764 para esse trabalho


Hello, I am an experienced web and mobile developer on this site. I have a great profile by completing over 100+ mobile apps and site tasks and got the great skills and experiences so far. [login to view URL] Mais

$500 USD in 10 dias
(88 Comentários)

Hi ,sir. How are you? Nice to meet you. I have gone through with your project description and now i am very qualified that i can complete your project. Because i have experience with Firebase and CSV&PDF export and Mais

$400 USD in 42 dias
(97 Comentários)

Dear client. How are you? I saw your post and hope to work with you. I have good experiences in android, iphone for 6+ years and mainly work with java in android studio, swift, objective-c in [login to view URL] have good ski Mais

$555 USD in 10 dias
(44 Comentários)
$555 USD in 10 dias
(17 Comentários)

Hello, Thank you very much for sharing your requirement to build a crowd-sourced data collection app with offline support. I have read the brief project description and would like to proceed. I have 4+ years of e Mais

$1000 USD in 15 dias
(20 Comentários)
$555 USD in 10 dias
(40 Comentários)

Hello, I m fulltime available for work , I have 6 years of experienced on mobile application and development web services I have gone through your project requirement specification and as per my previous experie Mais

$555 USD in 10 dias
(9 Comentários)

I am expert in Web designing/developing.I believe that I can be the best productive candidate for this requirement. My skills include : * PHP, CMS, Word Press, Magento, Joomla, Ecommerce, HTML * Branding and Cre Mais

$555 USD in 10 dias
(30 Comentários)

Hi. I am so anxious to do your job and because it really fits my ability. I have been working with mobile development for more than 8 years and enough experience in React Native and Firebase. I suppose the main prob Mais

$2222 USD in 10 dias
(10 Comentários)

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$1666 USD in 15 dias
(9 Comentários)

Dear Hiring Manager! I have gone through your job posting and understood your requirements, Actually I have full confident in React Native and also to send you awesome result. Only one question, when can I start and Mais

$555 USD in 10 dias
(4 Comentários)

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$555 USD in 10 dias
(14 Comentários)

I can develop this I have an experience of 5-6 years in this field kindly reply me so that I can further discuss it with you

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(5 Comentários)

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(3 Comentários)

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$555 USD in 10 dias
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I have many years of experience in mobile app development on android and iOS. my recent project is Metro1news App and Lagel App

$1000 USD in 30 dias
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$555 USD in 10 dias
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