Can endorse iddeals too and have used it for many years.
Stafftraveller is an interesting app too. Airline staff ask for loadings on flights and other airline staff provide the number of seats available from their own company travel systems. You get a credit for helping and lose credit when helped. If you need more credits, you can buy them.
It won't help you with CX but, if people are honest, it will help you with other airlines. Useful to supplement iddeals and the Cx travel smiley faces.