Hi,
I can develop a phone app for you, but I need to check full specs first.
Please contact me for more details and samples of my work.
Over 10 years of experience in PHP, WordPress, Magento, HTML5, PostCSS, CSS Modules, LESS, NodeJS, AngularJS, ElasticSearch, ReactJS, Gulp, AWS, MySQL, MongoDB, Socket.io.
Best regards,
Dmitry