WhatsApp SIM is an Android app developed by Telefónica Germany GmbH & Co. OHG (Georg-Brauchle-Ring 50 80992 München). Others apps created by Telefónica Germany GmbH & Co. OHG are: FONIC mobile, FONIC.

WhatsApp SIM first became available on 15 Feb 2016. It is estimated that WhatsApp SIM has been downloaded between 100000 and 500000 times from the Play Store.

WhatsApp SIM 5.6.0.9 requires the following permissions:

Allows applications to access information about networks.

Allows applications to open network sockets.

Allows an application to read from external storage.

Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.

Allows an application to read SMS messages.

Allows an application to receive SMS messages.