The app is built to be used with a keyboard alone and with a screen reader: headings in a real order so you can jump between them, labelled form fields, visible focus, controls that announce what they are, and text that resizes with your system settings rather than being pinned to a fixed size. Searching, booking, cancelling and messaging are all reachable without a mouse.
System settings are respected rather than overridden. If you have reduced motion turned on, animations are kept to a minimum. If you use a larger text size or a dark theme, the app follows it.
Two parts are only as accessible as the person who wrote them: a studio's own description and its photographs. We cannot write somebody else's alternative text for them. If a studio's page is unusable for you, tell us and we will take it up with them.
If something here does not work with your assistive technology, report it and say which technology and which screen. That is a defect on our side, not a limitation on yours, and it is the only way we find the ones our own testing missed.
For accessibility at the appointment itself — step-free access, a quieter room, a longer slot, communication preferences — ask the studio when you book. Those are questions about a physical space, and the studio is the only one who knows the answer.