Hello @Noai and a warm welcome. The current Fitbit app is 3.14. You can check your version by tapping on your profile picture > scroll down to Help and tap on it. You don't say what Fitbit you are using, but you can find it by tapping on your profile picture > tap on your device image. The current firmware for each device is in this Help article .
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.