Hisn Al Muslim is a book of azkar & Duaas from quran and Sunnah and it's classified in the category of supplications by the author Dr. Said Ben Ali al-Qahtani, who in syated limited on the sahih hadiths and goodwill associeted to the Prophet Muhammad, such as Saheeh Al-Bukhari and Sahih Muslim.
Take the opportunity to get the .apk setup package of Hisn Al Muslim audio book 1.0 free of charge and take a look at users' reviews on Droid Informer. The installer requires 17 MB on disk and it can be launched on Android devices 4.0 and above. The app was checked for viruses and it was found 100% secure. AggyApps is the developer of this application which refers to the Music & Audio category.
Over 10K users installed the tool and the latest update was released on Nov 30, 2018. Hisn Al Muslim audio book was rated 4.5 on Google Play. The app has advertisements.