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VOIP APP like viber or Whatsapp

I would like to develop an app like Viber, WhatsApp, or similar for iPhone, Android, Windows Phone, and possibly PC and Mac.

The app functions must include text, picture and video messaging across all platforms, with voice calling. The application's user interface shall include tab bar on the bottom giving access to messages, recent calls, contact, the keypad and a button for accessing more options. Upon installation, it should create a user account using one's phone number as username. Address book to synchronize with phone's address book so users do not need to add contacts in a separate book. All users must be registered with their phone number, the software returns all App users among one's contacts. Additional features include file sharing capability (photos, videos, audio, etc), location sharing, group chatting, user profile, possibility of syncing with facebook account, and potential for further upgrade. Customer should be able to subscript for a fixed month price to be able to use the app. Possibility of Multi-language platform for the above mentioned description.

Skills: Android, Engineering, iPhone, Software Architecture, VoIP

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About the Employer:
( 0 reviews ) Netherlands

Project ID: #5312863

24 freelancers are bidding on average €7045 for this job

appstudiozsl

Wish you a very happy & prosperous new year! We've gone through the requirement details regarding VOIP App and shall provide you our understanding, project plan, timeline & cost estimation for the project after a co More

€3608 EUR in 30 days
(32 Reviews)
9.2
mukes1986

I will assign 5 Dedicated developer and 2 Graphic designer and they will send you daily work report and 2 times video updates in a week. Check our mobile work portfolio [url removed, login to view] More

€46391 EUR in 120 days
(178 Reviews)
9.2
leadconcept

Kindly ignore the bid amount & time-line, it is just a placeholder, as we still need to analyze your requirements more in depth & discuss with you. -------- Dear Sir, I have read your Project Description and under More

€5154 EUR in 60 days
(45 Reviews)
8.5
technotrust

Hi, Happy New Year to you and your Family!!! We have reviewed your requirements mentioned in project description. We have a very good skill set in iPhone, iPad, Android and Web Development.. We already done More

€8247 EUR in 60 days
(205 Reviews)
8.9
toxsltech

Hi, I can develop an app similar to viber or whatsapp.I have 10+ years experience in developing mobile apps.I have worked in many MNC's such as Samsung, HCL, PacketVideo. LinkedIn:[url removed, login to view] More

€5000 EUR in 70 days
(139 Reviews)
8.7
designcreative1

Hi, Hope all is well. We have gone through your requirement and would like to discuss about your project more into detail so that we both are on the same level of understanding which would More

€5154 EUR in 30 days
(45 Reviews)
8.4
shabdullah88

hello sir we are mobile and web development company with good reputation wait clients all over the world we deliver enterprise projects to or respectable client with 100% client satisfaction, we have 5+ years experienc More

€7216 EUR in 60 days
(40 Reviews)
7.8
qitsol

We did similar to whatsapp using xmpp and openfire. we can show you that. Please discuss with us and we will show you that.

€5154 EUR in 30 days
(58 Reviews)
8.1
qualifiedcoders

Hi We have read your Requirements and would like to discuss further as we have strong hands in Iphone,Android,BlackBerry & other mobile application development & completed over 150 projects in last 5 years. Pleas More

€4123 EUR in 30 days
(27 Reviews)
7.4
CreativeB24

Hello, I am experts to create whatsapp SCOPE OF PROJECT: 1. The application will be developed like Whatsapp on Mobile platform. 2. There will be 2 Panels - a) Administrator b) User Panel 3. The Administrator w More

€8888 EUR in 50 days
(8 Reviews)
7.3
monster816

Hi, I'm an expert ios and android app developer with 5+ years of experience. I am an expert in Native Android SDK,objective c, HTML5, Database(MySQL,MSSQL),CSS,DHTML,JQuery,etc. I believe my skills would be ideal More

€5154 EUR in 30 days
(32 Reviews)
7.3
hafeez

Hi, I am interested and would love to do it. I have done several other projects including a dating app, and have been working on google maps API a lot. So, I would like to be given an opportunity to do something dif More

€4123 EUR in 90 days
(57 Reviews)
7.1
deming723

Dear Hiring Manager Thanks for job posting here. Im very interested in your project. I have much experiences in Mobile app development especially IOS field. I have developed many apps and many of them is taking top More

€4123 EUR in 30 days
(35 Reviews)
6.9
captek

Hi, We are voip solution provider and have developed various system, website and mobile apps for voip calling. We have earlier developed various voip mobile dialer with functionality similar to rebtel, skype, viber, wh More

€7894 EUR in 30 days
(10 Reviews)
6.6
icodingtechno

Hello, We are happy to see your project posting on amazing start of year 2014 and we wish you good luck for your project completion on desired time We wish that you will have quality work on time. When we tell ab More

€7000 EUR in 50 days
(16 Reviews)
6.3
NTechcorporate

Dear Client, Hope you are doing well! Thanks for posting this job. We have gone through your requirement and we understand that you are looking for highly skilled, qualified, and experience Mobile Application More

€4123 EUR in 30 days
(11 Reviews)
6.2
webNapp

A proposal has not yet been provided

€4444 EUR in 30 days
(10 Reviews)
6.0
agnitiosoftware

Hello sir, That is good to see that you are interested in making a new kind of app with some alters done in apps like whatsapp. We will provide you the demands with complete satisfaction. About us: We are de More

€5154 EUR in 60 days
(49 Reviews)
6.0
offenderstechno

Hello, we are glad to introduce ourselves as leading IT company of India. we are PVT LTD company with most experience resources of all vertices of IT industry. we believe for quality and we known as brand for which More

€6000 EUR in 40 days
(18 Reviews)
5.3
p4provider

Hello, Let me show you how we are different from others. Some of the key differentiators are: 1. An excellent team of 40 software engineers with expertise in all emerging technologies 2. Easy access on IMs l More

€5154 EUR in 30 days
(5 Reviews)
3.9