Hi @PeaceLover,
Welcome to the D&D forum!
Enjoy the multiple resources here available: may these be of assistance along the path!
Regarding your question, there is an app for Android. I only have found the following post about an iOS app. Maybe others will be able to help more.
Should you have any questions related to the forum, feel free to contact the @moderators.
With Metta,
Ric
On behalf of the moderators