Silence does not collect or transmit any personal information. The app requires the following permissions:

• INTERNET: This permission is required so the app can transfer data to/from cell service providers to enable MMS. It it not used for any other purpose.
• READ_CONTACTS: This permission is required so the app can suggest contacts to the user as they type, as well as display contact information next to message threads. This information is never transmitted off the device.
• READ_PHONE_STATE: This permission is required to get the current phone number. This is used for some dual-sim functionality and to ensure sending messages to the current number, from the current number, is handled correctly. This information is never transmitted off the device.