Ps. There’s only a one-off in-app ‘unlock’ feature. No signups, no subscriptions or any other data kept.

Thanks for your reply. I have a privacy policy I found online which tbf is more than enough for how basic the website is. It was just more the t&cs to discourage someone injuring themselves by misusing the app and wanting to sue. The app would be be available in all countries. What would a set of simple t&cs cost (£) in this usage case would you say?