With the competition package you get everything in the hobby package plus you get the target sheets. The target sheets adds:
1)Out targets by bust reset amount
(accumulated score on current turn with 1 or 2 darts in hand; added back in case of bust)
2)Secondary targets (if applicable)
3)Closing percentages by number of turns (1,2,3 & 4)
4)Target inferiority % (where applicable) comparing primary and secondary targets
This package is for the dart player that wants more information than just the best target.