https://www.bbc.co.uk/blogs/aboutthebbc/entries/37e4e3f6-fbd2-4c14-8d72-7f7139641582 said:
When we make our programmes available via third parties, we ask that those platforms either allow you to sign into your BBC account – or provide us with meaningful data directly. Unfortunately, TuneIn doesn’t do either of these, so we couldn’t reach a data sharing agreement with them.