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Official Description

View BigStuff3 Dashboard data and Upload your replay data with your Android Phone or Tablet.

Once your replay data is read from your BigStuff3, the replay log is automatically saved to your Dropbox account, emailed to you or uploaded to ShadowTuner.com.

Original and Extended Replay is supported.

For wireless connectivity, Bluetooth Adapter kit is required:
http://www.efianalytics.com/products/class1BluetoothBigStuff.html

Or you can connect via USB using an FTDI based USB to RS232 cable with an OTG adapter if your phone or tablet support USB host mode