Mobile Platform Development

We are in a need of an unified communication iOS and Android app whereby the users can communicate using WebRTC communication.


- We are not allowed to use third-party libraries!

- Do not use third-party libraries! You must include everything inside the app.

- The app may be used in a closed VPN infrastructure, accessible only when a closed VPN connection is made.

The app architecture must allow the option to connect to a certain platform, it will make use of the database per platform, and it will make use of its own app database.

It must be possible for the user to switch between platforms. For example when a user has both an account to the name of the company, it must be possible for the user to switch between the accounts rapidly.

The switching allows the user to logout and login rapidly between platforms, without again using the manual login.

The app must always encrypt all credentials of the user in the database, and when saving the credentials of the login / database the credentials must be stored in the keychain.

- Security documentation

Ensure you documentate the locations of where you have the cryptography integrated, and how it is integrated.

Make sure all security settings and security integrations are documented very detailed.

- Communication security

Use for chat communication the Double Ratchet cryptography protocol in combination with Diffie-Hellman, but must be with Double Ratchet!

The APP should contain the following functions to operate correctly as a communication APP.

This will be discussed separately.

Skills: Mobile App Development, iPhone, Android, PHP, Security

See more: mobile game development platform android, mobile application development platform, cross platform mobile application development, cross platform mobile game development, mobile app development platform, mobile applications development platform, mobile software development platform, multi platform mobile app development, platform mobile application development freelancers, cross platform mobile app development, google mobile app development platform, cross platform mobile app development tools, xamarin: cross-platform mobile application development pdf, xamarin mobile application development: cross-platform c# and xamarin.forms fundamentals pdf, best mobile game development platform, cross platform mobile game development 2018, cross platform mobile application development tools, cross platform mobile app development comparison, cross platform mobile app development language, mobile platform development

About the Employer:
( 157 reviews ) Den Haag, Spain

Project ID: #26832191

Awarded to:


Hi there. I would like to take on this project for you and to deliver as per the required specifications. Thank you

$2000 USD in 30 days
(6 Reviews)

71 freelancers are bidding on average $2361 for this job


Hi ** Reviewed your given details. I would appreciate if you please interact with me. I have 5+ Years of experience in iOS and Android App Development. I have developed 300+ apps. You can go through our portfolio More

$6000 USD in 40 days
(998 Reviews)

Hello Full Stack Expert development team is ready to serve you. My bid is not calculated. If you are interested I will work on it and give a proper quote. Send me a message and then we can discuss the details Tha More

$2250 USD in 5 days
(218 Reviews)

Hello Greetings We have read your project description and will surely develop a Mobile Platform Development according to your requirements. In this app if users want they can switch the account. We have an experience More

$3000 USD in 45 days
(206 Reviews)

Hello, I hope you are doing great We are Sphinx solution, a Software Solutions & Services Company of 80+ in-house developers & designers specializing in Application Development, Web Technologies, Software Testing & Q More

$2500 USD in 30 days
(92 Reviews)

Hello Sir, thanks for post project , I have read short description of project and I seen I can give to you best quality of this project , We have big development team with website team, server team, mobile team, design More

$2250 USD in 30 days
(447 Reviews)
(166 Reviews)
(244 Reviews)
(85 Reviews)

Hi, I am ready to work on your project right now. We can offer you all the features described in the job description and if you want to add, you can also recommend additional features. - I am an expert Android and iO More

$3500 USD in 45 days
(85 Reviews)

Hi Greeting! Thank's for providing us an opportunity to bid on your project. We have 750+ projects completed by our 24 + employees so we are very excited to participate in this project. We specialise in full scale of More

$1500 USD in 35 days
(174 Reviews)

Hello Dear, I've read your project detail and i can design and build a mobile platform for you as per your requirements with complete mobile responsive design. Lets have a quick chat to discuss this project. We have ex More

$1600 USD in 10 days
(206 Reviews)

Hello, I have experienced and expertise in Mobile Application (Android & iPhone) App. I am a full stacking developer, I have worked many Application, I will provide you initial features which you require with simple an More

$1650 USD in 7 days
(112 Reviews)
(157 Reviews)

Hi, We can build an unified communication iOS and Android app whereby the users can communicate using WebRTC communication. As per your requirement we are a good fit for this job. Please come over chat to discuss in d More

$1500 USD in 20 days
(280 Reviews)

Greetings! Your project caught my interest. First let me quickly introduce myself. My name is Kanika, and I am a Web designer & Dev.I only bid on jobs I am 100% confident I can complete on time & on budget.. I am Good More

$2375 USD in 20 days
(69 Reviews)

Hello, I'm a full-time available here!!! You need to build an Android / iPhone / iPad app, with the admin panel. As per your project need, I can build your project more efficiently with my knowledge and experience. I' More

$1501 USD in 7 days
(97 Reviews)

Hello John M., I have just read your project description details, and I am very interested in your project and excited to offer a bid. This project fits my skills perfectly, As you can see my profile I'm a senior More

$2100 USD in 36 days
(49 Reviews)

Hi there, I am much interested to make this application for you. I am confident that I can do it. A little about me is that I have been in the software business for more than a decade now and I have done some exclus More

$2250 USD in 7 days
(14 Reviews)

Hello There, I hope you are doing well ! I have carefully gone through your job post for Android and iOS app using webrtc where user can communicate . I am a expert mobile application developer with having 5+ year More

$1500 USD in 25 days
(17 Reviews)

Hi, I am a senior developer working here with the small team with mixed values and experienced. I have gone through your post and i found my self perfect developer and would love to be a part of your project. I will More

$2200 USD in 25 days
(21 Reviews)