Both types of native applications are completely different: .apk for android, encoded in Java and .tpk for Tizen, encoded in C ++. Thus, it is not possible to directly install .apk files in Tizen.
But OpenMobile has created an application called ACL for Tizen that will run almost any Android application on the Tizen platform.
First you will need to install the application on the Tizen device, and you must download the apk in the ACL application.
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