Yes, definitely. The CRAFTY(+) is a one button device.
The STORZ & BICKEL App is not necessary for operating the CRAFTY(+) as this works perfectly with the default settings: basic temperature is 180°C and booster temperature is 195°C. The CRAFTY+ even offers the Super Boost, which raises the temperature to 210°C [410°F].
However, with the app you can set the basic and booster temperature, change the LED brightness, switch the vibration signal on and off, read the battery status, reference the operating time, and much more.