What is Major difference between Galvanometer and Simple electric motor

In an Electric motor, the coil is free to rotate about the axis.
In a moving coil galvanometer, the two ends of the coil are attached to two springs
which control the rotational motion of the coil. When the coil begins to rotate the springs
oppose the motion by applying a torque opposite to that due to the magnetic field.
When the two torques balance each other, the motion of the coil stops.

The entire difference is the commutator: http://en.wikipedia.org/wiki/Commutator_…

Galvanometer: http://en.wikipedia.org/wiki/Galvanomete…
DC Motor: http://en.wikipedia.org/wiki/Brushed_DC_…