Replace Backend of an existing app

I need someone to replace the backend of a existing app that does not have current API or last code.

Skills: Android, iPad, iPhone, Mobile App Development

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About the Employer:
( 21 reviews ) Danville, United States

Project ID: #6727293

Awarded to:


Hi, Dear Sir. "High Quality + Powerful Service + Rapid Communication!" is my forever business policy! I just read your job posting with interest and carefully, and I’ll waiting interview with you ardently. I have ex More

$944 USD in 15 days
(2 Reviews)

22 freelancers are bidding on average $1107 for this job


A proposal has not yet been provided

$1159 USD in 20 days
(96 Reviews)

Dear Sir. How are you? I am talented mobile game/app developer for iOS and Android. I have 7 years experience in this field and I can do this perfectly. I have done many work to similar to this project and I can More

$1578 USD in 15 days
(86 Reviews)

Hello sir. I am a passionate mobile developer with 5+ years rich experience. Before felling in love with mobile apps, I had worked extensively with objectiveC, XCode, Java, C++ to have a strong grip on OOP and design p More

$842 USD in 5 days
(24 Reviews)

Hi I am glad to find your project. I am web developer with good HTML, CSS and PHP, MySQL skills. Now My ranking is top 8 in freelancer. So I think you may not worry about the project. Please check my portfolio careful More

$1546 USD in 20 days
(23 Reviews)

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$1184 USD in 25 days
(12 Reviews)

Dear, sir! You are looking for the world's best mobile app developer, and i'm the best mobile app developer who are very familiar with android. So i can finish your work within your timeline. It doesn't take more than More

$789 USD in 10 days
(49 Reviews)

Hello Thanks for your good project. I have seen your description carefully. There is no any risk for me at your project. Please check [login to view URL] This is the collection of my works during 8 years. I have ric More

$1184 USD in 20 days
(16 Reviews)

Hi, I can do your project perfectly. Please check my productions Please contact me. Best Regards. Wang -iOS Social app: Yuru [login to view URL] app for site https://itunes.a More

$1263 USD in 20 days
(47 Reviews)

Hello Dear client We have read your description and understood your requirement of replace the back end of a existing application . We are experts in developing mobile application .We have 3 years of experience More

$1578 USD in 20 days
(45 Reviews)

Hi there, Hope you are doing good. This is bhimashankar with "syneotek software solution" company with highly skilled and experienced professional's expertise in development of iPhone, Android, Windows Phone7 app More

$1500 USD in 30 days
(22 Reviews)

I have so many questions. Lets discuss more to get an exact bid. Here are the sample of recently developed apps. [login to view URL] [login to view URL] More

$1184 USD in 20 days
(74 Reviews)

Dear Employer, We are really interested in this project as it is exactly within our scope of expertise. Working with a team who has both inhouse DESIGNERS and PROGRAMMERS means that you can take advantage of both More

$1184 USD in 20 days
(24 Reviews)

Hello, We have some couple of [login to view URL] you please respond back,. so that we can clarify our queries. Can we have a discussion?. . We are an ISO 9001-2008 certified [login to view URL] are very good in mobile appli More

$1546 USD in 20 days
(15 Reviews)

How are you? I really want to work for you. I am mobile developer and expert. I have rich development experience and have developed many apps. If you award me, i will do my best for you. I understood your project More

$1580 USD in 20 days
(27 Reviews)

Thanks for your job posting. Your job is very interesting for me and I hope to work on this project. I have rich experience in mobile development and mastered most branches of iOS & Android. I developed many mobi More

$1578 USD in 12 days
(8 Reviews)

How are you? I am very happy to take this chance. I saw you project detail and I am very interested to your project. I have 8 years experience in programming field. I have my own graphics designer, also I am almo More

$1578 USD in 20 days
(20 Reviews)

Hello, App will be progressed by two steps. 1) Analyzing parsing part of back data from website. - Data structure - Database structure 2) Design database, design web service. Best Regards. Tian Lin

$1052 USD in 20 days
(11 Reviews)

Hi, I saw your job . I want to see your job in detail. If you give the chance I will do my best. Please check my urls. [login to view URL] [login to view URL] More

$1315 USD in 23 days
(13 Reviews)

Dear client! I have developed so many apps before that I have a lot of experiences in mobile development. Although I am new in Freelancer, I am very good at development. If you give me your project to me, I will pro More

$842 USD in 10 days
(10 Reviews)

Hi I have strong experience of iOS,android app and backend service development. I have some question. Have you android or iOS source code? I'll wait your kindly reply Thanks Fang

$1184 USD in 20 days
(13 Reviews)