Secure chat app upgrade

How Are You, Sir. I have mobile app( Android, IOS) , php and backend skill. I have experience with Social app, Dating app, Chatting app, Video Streamming, IPTV app, Uber style App , Restaurant/Food Deliver app, photo sharing app, Spy app, Chatting app, Guard patrol and School management system based on Nfc Read/Write , Fitness App , Routing app based on GoogleMp,Youtubevideo, JNI(FFMPEG,OPENVPN) , Responsible mobile sit, Bluetooth app, Wifi module communication so on. I would love to work on your project.

Hello, Please send the NDA copy to sign it, I have 5 years of experienced on mobile application and development web services I have gone through your project requirement specification and as per my previous experience with this I am capable to do this project. I have developed the TAXI apps, google map , Event App, Jab Potal App,Restaurant App,Dating App,Social chat with video calling and other apps with clients need . I would approach your project by starting with wireframes and getting the design completed, before starting the actual development phase. Regarding your project if you have any reference or if you have already created a doc then please share with me so I can check and proceed in right momentum As concern for my skills please take a look on my past work .We have already created more than 300 Apps and around so far . We are highly qualified for this project and would love to speak with you further about taking this project on. Please share more details to check and discuss . Looking forward with more details Thanks Jessica

Hello Sir,   As a talented and agile developer, I am confident I can exceed your expectations and complete your project on time and within your budget. So please feel free to message me and discuss further, I can make best schedules for your project. I’d love to help you spice up your project Best Regards

Hi, I am having more then 5 years experience in Android & Iphone development. Read your requirement its according to my experience, I can easily complete this. First I will create a test app. I am available to discuss and do this job. I will charge no upfront payment, pay me once you will satisfy with my work, if it will not according to your requirement don’t pay me a single penny. Thanks

I have read over your project description and I'm interested in completing your task. If you check my site or portfolio you will see that I am of a higher quality than most freelancers on here. I get it done quickly, efficiently, and with exceptional quality. I am a professional with roughly 7 years experience and a college level degree in the field of web development. I am experienced in the languages of PHP, CSS, Javascript, HTML5, XML, MySQL, AJAX, Jquery, actionscript 2.0 & 3.0 I am also experienced with the use of all Adobe products. Please let me know if you have any questions or concerns before making your final decisions. Thank You,