Hi,
We at Ludiac are a team of expert individuals of vast no. of technologies. Although we are new to this platform but we have excellent expertise web designing and development. We have completed different projects using PHP, HTML, WP, AngularJS, Javascript etc.
We have developed a universal application with exactly similar functionality where users can check-in multiple times for multiple activities using bar-code scanner which is displayed on their membership cards. We are very much willing to develop same system according to your requirements in PHP, HTML. We can also share our past work examples once you respond on our proposal.
Thanks.