Fog Core

Fog Core provides an easy-use, highly encrypted virtual network within Wi-Fi spot.
It enables Fog-enabled apps share their data among Android devices in the same Wi-Fi spot.
It doesn't access any Internet servers, except for clock synchronization via NTP.

** You need Fog-enabled apps in order to use Fog Core capabilities. **

Fog Core requires following permissions:
- full Internet access
　　to communicate with devices, synchronize clock via NTP, show ads
- view network state, view Wi-Fi state
　　to inspect network status by itself
- change network connectivity, change Wi-Fi state
　　to change network status by itself
- allow Wi-Fi multicast reception
　　to discover devices
- modify/delete SD card contents
　　to save received files/backups
- prevent device from sleeping
　　to avoid unexpected disconnection
- Fog database access
　　to access Fog Core system