Hi Gabriel!
Thanks for considering our plugins for your next project 🙂
We work hard to follow good design practices and – as part of that – are mindful of accessibility concerns. There may however be some areas however that don’t completely meet ADA or WCAG guidelines and we don’t claim complete compliance.
All of our plugins are built to be customizable, however, so it’s generally possible to address specific concerns that might be of particular importance to your project goals.
Both The Events Calendar and Event Tickets are freely available so please do consider taking a moment to test them out and put them through their paces/assess them for accessibility using whatever tools and strategies you prefer prior to making a purchase of one of our premium plugins – all of which build on the foundation laid by those free, core plugins.
I hope that helps and do let me know if you have any further questions 🙂