Add Push Notifications to my Mobile / Web Application

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Add Push Notifications to my Mobile / Web Application
Im using the Karenderia codebase ([login to view URL]) to run my app.
Currently the app allows me to send notifications via SMS, Email, and Push.
I am looking to add the ability for customers to alert when they arrive at a store. Either a button / reply to an SMS (Twilio). Geotracking could be beneficial too.
To get a better idea of what needs to be done you can check out: [login to view URL] User: admin Password: admin (set to read only)
Skills:
PHP
, Android
, Mobile App Development
, JavaScript
, iPhone

Company info

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