Acknowledgements & Credits
This app uses HTML, JavaScript, PHP, Bootstrap, Font Awesome, jQuery, html2text, MariaDB, PHPMailer, Popper.js, Stripe, TCPDF .
Background image "Muchos colores" (CC BY-SA 2.0) by Nicki Dugan Pogue.
Icons from 100 Flat Icons (freeware) by GraphicLoads