Location attendance app for Andriod and iOS

support: • iOS 12 • Android 8 Language: English and Chinese (UTF8) Core function 3 tier architecture : app, web server in DMZ, database server App registers the first time use and remember the email id/ login id, hence it doesn't allow to modify the login id when use it other than first time App gets location from GPS and network location, fused location, (prevent the fake GPS from other app, not the GPS coordination from phone) App servers which integrates with AD server (Form filled https request) for user authentication Simple UI for the App only (1-2 buttons on the screen with a faded color image behind); Guessed 2 to 3 pages in App only. The application records the attendance information into the database which includes date, time, location co-ordinates, resolved address, Mac address, user id etc (not limited to those information). The server sends a text-based email to designed email address for each attendance action via SMTP gateway (provided by the environment) Unit test of the application 3-month warranty Optional feature: When the phone is out of GSM coverage, the application will store the local phone GPS co-ordinations in phone with limited entries (say 10). Once the phone is under coverage again, the app will push the outstanding GPS attendances to server Technologies: Flutter preferred Tomcat Java web server mySQL database IP right: belong to hiring party Deliverables Installation guide Source code of both version of App unit test results