No. Hydrow is designed to be left on between uses and this is what we recommend you do. Staying on will allow it to receive and install any needed software updates in the background while still connected to your network. This means Hydrow will be ready to row immediately whenever you are!
After 5 minutes of inactivity Hydrow will go to sleep and turn off the screen to save power. You can wake it up any time by touching the screen or pulling the rowing handle.