Need help from backend developer for these 2 issues

Dear Employer; I am a professional Android app developer but new here on this platform. Please give me a chance to work for you. I will charge less and work more. Thanks

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Hello, We are a team of two freelancers and have experience in android development and good knowledge of php and MySQL. We have also worked on backend so can work on your query also. We have worked on many apps and some of them are on Google play Store also. We assure you the quality work within best possible time completion. Thanks & Regards

A proposal has not yet been provided

i am work in json from 1+ year so i know your problem very well and solve within a day

Hello Sir, We have gone through the details you have provided and we have already worked on a similar project before and can deliver as u have mentioned and would be pleased to work on this with you to deliver the results that you have expected and we have already worked on a similar project before and can deliver as u have mentioned We are sure you will not be disappointed if you give us this opportunity. Our team is experienced, creative & efficient enough to get your job done well. We have an impeccable record and all our clients enjoy working with us, we are sure that you will too, our prices are cheapest in market. [Removed for encouraging offsite communication which is against our Terms and Conditions.] for further discussion about the project I am ready to discuss with you with best Regards

A proposal has not yet been provided