WolframAlpha 1.3.0.5403760 is a Android App developed by Wolfram Group. It is a Books & Reference kind of App with lots of features listed. This App already downloaded around 500,000 - 1,000,000 times from initial release. WolframAlpha requires your device to have Android 1.3.0.5403760 to open this App. This particular version of the App released with lot of bug fixes and performance improvements. You can go ahead and Download WolframAlpha 1.3.0.5403760 APK full version from the download page to install directly on your Android Device.
To Install WolframAlpha, All you need to do is just copy com.wolfram.android.alpha.apk file into your Phone's SD card or Internal Storage, double tap copied file then click "Install" to manually Install onto the Android device.