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I need a back end developer for a chat application

I need someone with a deep understanding of WhatsApp's logic. I have made a chat application like whatsapp. Some key features include:

1. Phonebook integration. - All registered users that are on my phonebook will show as contacts on my app.

2. Works offline and does not store messages/media on our server side. Messages/media are stored on the user's phones.

3. has all the bells and whistles whatsapp does except for voice and video calls.

I've tried to implement these features, however I am experiencing trouble such as:

1. Some of the registered users are not showing up on my app

2. Chats don't perform very well, they take forever to send and be received. And I have problems using the same 'storing on the phone' logic whatsapp uses.

Compétences : Android, Mobile App Development, iPhone, PHP, Java

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Concernant l'employeur :
( 0 commentaires ) Jakarta, Indonesia

Nº du projet : #20331990

113 freelance font une offre moyenne de $4032 pour ce travail

EliteSolution8

Hello I read your description and can know that you'd like to build a messenger app similar to WhatsApp. As a senior developer who has good experience in mobile app development, I'd like to help you with this project. Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 45 jours
(62 Commentaires)
9.0
codeguru786

Hi, I've read the project description and definitely can update the mobile app like WhatsApp. I'll provide you with the highly-skilled & professional UI/UX/HTML5, Java, PHP, Swift, React, JavaScript, MySQL, front & bac Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(430 Commentaires)
9.2
Webwingtechology

Warm Wishes, We found that you have a requirement. Well, we are a sophisticated team in establishing Chat Application projects and we also have a list of happy customers working with us. We are keen to serve you with o Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 35 jours
(173 Commentaires)
9.0
nuked24

Hello, please do check our message so that we can talk and discuss more about the project. Please provide all requirements of the [login to view URL] provide any reference APP like that you want your APP. After that we can di Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(177 Commentaires)
8.7
BlueGenie95

Excellent Developers here. We have read the project description fix the trouble shooting error in the whats app like chat app .We are interested to work for your [login to view URL] have the well experienced team of develo Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(260 Commentaires)
8.7
r4rony

__ Awaiting your response __ Hello, SIMILAR WORK DONE - [login to view URL] - [login to view URL] • http:// Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 40 jours
(190 Commentaires)
8.5
gkws

Dear Employer, This is OM from Risensys Pvt Ltd. We are giving quality services from past 8 years. Can you come over to chat to discuss further in this regards as I would love to hear more about the idea/ concept? * Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(390 Commentaires)
8.4
netdevbiz

Greetings !!! We have gone through your brief carefully and understood that you have already developed a chat application like WhatsApp, but you are experiencing some troubles while implementing the following features Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(179 Commentaires)
8.6
sphinxsolution

Hello, We are Sphinx Solutions, a CMMI Level 3 appraised company. We are a rapidly growing software and mobile app development company. We create beautiful, innovative and productive websites, apps, web app for entrep Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(90 Commentaires)
8.6
taskmanageryd

Hi, I have more than 10+ years experience in Android and IOS apps development with backend and UI/UX design… Will take care about API, UI design, apps development and long term maintenance. Native Android and IOS ap Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 40 jours
(508 Commentaires)
9.0
ptiweb

I would like to offer my solution for this project and hence come up with a desired solution for the same. Before moving further I want to learn all the basic concepts and scope of the existing work so that I can get w Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 25 jours
(145 Commentaires)
8.1
searchtechnow

We can incorporate the features that you need just like watt's app. We have already created a chat application having the same functionality and can share that with you, so that you can have a look to it. Please chec Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 45 jours
(389 Commentaires)
8.3
vasundhara19

Respected Sir / Ma'am, I have gone through your post and you are looking for a back end developer for a chat application, We have the experienced team of Developer can do this project, Can you please take an initiative Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 50 jours
(119 Commentaires)
8.3
trivediinfo

Hello I have seen your project and I'm interested in working with you. I guarantee you the best performance, on time project delivery, faster communication and quick response to your queries. I will provide you very u Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(312 Commentaires)
8.3
tarunmehan

SENIOR IPHONE/ANDROID APP DEVELOPER WITH 5+ YEARS EXPERIENCE: Hello, Greetings for the day! I am a full-stack developer and will surely help you to work on backend tasks. I have read your requirements and It' Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(107 Commentaires)
8.1
MobiStudioz

Hi there, Good day, just finished reading the scope of the project ►►Brief -Mobile Whats App Clone ►►Features Outlined- -User profile management -Chat -Last seen -Phonebook integration -No data sync to server -F Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 50 jours
(43 Commentaires)
7.9
maysaxena

Hi there, I AM READY TO START YOUR WORK RIGHT NOW HAVE A LOOK ON MY REVIEW I AND MY TEAM IS READY TO COMPLETE YOUR WORK WITH A QUALITY WORK I have gone through your project requirement specification and as per my p Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 25 jours
(548 Commentaires)
8.4
mitss

Hello, As i check this app is based on audio, video and text chat system app same like whatsapp chat system app. we need to develop replica of whatsapp or some additional features and functions such like all those ex Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 95 jours
(114 Commentaires)
8.0
wuyong2020

Hello. I am mobile app expert and have experienced a lot with mobile app backend development. This project is very interesting for me and perfect fit with my skills. I would like to discuss more details with you. Hope Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(72 Commentaires)
7.7
xiaomingming

Let me help you solve issues. I have rich experiences with chat app, whats app clone. I want to chat with you for details. thanks and regards.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(108 Commentaires)
8.0