DFO (Device Facts, On-the-go) provides few vital device information such as below:

- Universal Unique ID of the phone (not IMEI) is determined by the device manufacturer and specific to the device's platform or model. It is not imprinted physically
- Know if phone is rooted and has NFC support
- System apps that are installed on device, including the ones which are running internally
- Some information analysis from Contacts (integrated with Google account) or Address book of the phone
- Network / Connection being used currently
- Geo-Location (mostly, it will display complete location address)

Some of the features may not work on Custom ROMs, for instance, have seen Geo-Location not working on Cynogenmod 11.

Please rate the app as per your opinion on the usage & information.