What is TabTrader security model? private keys stay on my device or on your paper backup? do TabTrader store them on servers?
TabTrader is not a wallet, so there are no keys. It is a trading application to trade bitcoins and other cryptos from a single interface from your Android device.
Security: The app cannot withdraw funds from the account. It uses API keys that you give permissions to trade and get info – nothing else.
All traffic is encrypted.
TabTrader doesn't store any personal data neither locally nor on the server.
TabTrader server is only needed to receive charts data. All other communication is done directly with the exchange servers directly.