I am doing the tutorial and trying to dock with the cap ship. I can see the ship fine and the docking port. But when I try to enter it seems there is a force field preventing me and my ship just hits it and bounces away. Using a Samsung tablet.

It looks like you may be trying to dock with the station rather than the cap ship, and using the exit bay rather than the docking bay.

In the training sector, the cap ship is located far across the asteroid field, away from the embedded station you launched from.

The docking bay on the cap ship is located on the underside, 2/3 of the way toward the front, behind the ventral fin.