NimBuzz can access the following on your device:

Device & app history

• retrieve running apps

Identity

• read your own contact card
• find accounts on the device
• add or remove accounts

Contacts

• read your contacts
• modify your contacts

Location

• approximate location (network-based)
• precise location (GPS and network-based)

SMS

• read your text messages (SMS or MMS)
• receive text messages (SMS)
• send SMS messages

Phone

• reroute outgoing calls
• directly call phone numbers
• read call log
• write call log

Photos/Media/Files

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

Camera

• take pictures and videos

Microphone

• record audio

Wi-Fi connection information

• view Wi-Fi connections

Device ID & call information

• read phone status and identity

Other

• download files without notification
• receive data from Internet
• close other apps
• manage document storage
• enable app debugging
• read Google service configuration
• install shortcuts
• full network access
• control vibration
• prevent device from sleeping
• change your audio settings
• connect and disconnect from Wi-Fi
• run at startup
• view network connections
• reorder running apps
• create accounts and set passwords
• read sync settings
• toggle sync on and off
• mock location sources for testing
• modify system settings

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Last Update: 06/12/2015

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