AlSalah, developed by Sileria, is a prayer times calculator app available on Android devices. The app calculates the five Salah timings (Salat, Salah, Namaz, Solat, Prayer in Islam) and is optimized for mobile phones, tablets, Nook, and Fire. The original version of the app was created in 2001 and has since been updated to include modern features.

The app is lightweight, fast, and efficient, using minimal CPU and battery power. It includes features like a Qibla compass, GPS and network-based location, the ability to save favorite places, and a history function to keep track of your travels. The app also has options to change the date, choose from four imams, switch betweenhour time formats, and adjust the Hijri calendar. Additionally, it can show time differences from the next day's Fajr, Shurooq, and Maghrib, and highlight the current prayer. The app is available in Arabic, Urdu, English, Spanish, and Turkish languages, and the developers are looking for volunteers to translate it into more languages.

Overall, AlSalah is a user-friendly, reliable, and free app that provides accurate and up-to-date prayer times for Muslims.