Is there an App for Android / Apple devices?

Unfortunately the answer is no. Neither Google or Apple allows Apps with adult content into their stores. However there is a workaround for Android and Android App is currently under development.

In the meantime you can add Bdsmlr into your home screen by following these instructions: 

https://bdsmlr.zendesk.com/hc/en-us/articles/360003481160-Add-Bdsmlr-to-your-Android-or-iPhone-iPad-home-screen-