Use APKPure App
Get APK INSTALLER old version APK for Android
Installing apk file from your SDCard, or Download apk file from Internet
Installing non-Market application, maybe an .apk file.
Feature
- Select apk file from your SDCard, and install to your phone
- Download apk file from Internet and install to your phone
PS: Don't forget to allow the installation of non-market apps in the system settings.