The velocity is different when the game release as apk file

Unity Engine
1

In my script, I set my character velocity as 0.2 but when I build as android game, its velocity changed which make my game not able to play.

In other words, the movement speed of my character is around 0.2 in unity game mode, but when it come to my android phone, it became faster, which around 0.3

2

Check the FPS of the game running in Unity and the FPS of it running in android. If they are different, your game may run faster or slower unless you adjust your calculations to not rely on a specific frame rate (for example, restrict your movement calculations by deltaTime).