By having a license for the Infront Professional terminal, you can also purchase licenses for various modules.
Real-time and fee liable data can be added or removed during the subscription. For a list of available real-time markets see here. Infront charges no extra fees except for a 5% administration fee.
Infront offers several 3rd party services including professional news, research and other specialist data. This can be added and removed at any time. For an overview see here.