Wickr can access the following on your device:

Identity

• find accounts on the device

Contacts

• read your contacts

Photos/Media/Files

• modify or delete the contents of your USB storage
• read the contents of your USB storage

Camera

• take pictures and videos

Microphone

• record audio

Device ID & call information

• read phone status and identity

Other

• receive data from Internet
• full network access
• view network connections
• prevent device from sleeping
• control vibration
• run at startup

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Last Update: 06/12/2015

Source:
https://play.google.com/store/apps/details?id=com.mywickr.wickr2