Hi @shaffataproduction, thanks for reaching out with questions.
Please see the answers below:
Q1. is there a check-in system for the attendees in my event (like a web based qr code scanner or a mobile app scanner)
R1. Unfortunately, the current template setup doesn’t include a QR code or Mobile app scanner. Sorry for the inconvenience.
Allow me to mention that all our templates are fully customizable,so it is possible to change almost any design/functional part, including the addition of the mentioned feature (solid Bubble skills are needed).
Q2. can i use a different payment gateway than strip?
i have a local payment gateway in Africa
can i connect there api with your template throw the api connector?
R2. Sure thing it is possible. Kindly note that this would require also a payment workflow and element rework, in order to correspond to other payment gateway settings.
Kindly check the template update documentation, to find out all current template capacities: https://docs.zeroqode.com/templates/eventy-events-like-eventbrite-meetup-template
Hope it helps. In any other questions will arise, please let me know 
Regards,