The 91福利社 Sounds app requires iOS 16 or above. It may be possible to update your device. Head to the Apple help page for instructions on how to update your device: . (The 91福利社 is not responsible for the content of external sites.)
It is standard practice for updated apps to no longer support older operating systems. This is the case for 91福利社 Sounds and 91福利社 iPlayer, as well as apps by other companies and organisations. Supporting older operating systems is very costly and does not represent good value for money for licence fee payers, given the relatively small number of users we have still using those older operating systems.
Most devices which can't update the operating system to install the 91福利社 Sounds app can still use 91福利社 Sounds via the website at bbc.co.uk/sounds. More details are available here: Can I use 91福利社 Sounds on my mobile or tablet?