Thank you! Integuru itself doesn't handle recaptchas and signed requests, but we have a hosted solution where we use third-party services to handle recaptchas and manually create integrations for handling signed requests.
We do not directly support APIs for mobile applications; however, if you use MITM software and get all the network requests into a .har file, Integuru should work as expected. We do not handle AppCheck ATM at the moment unfortunately.