In the past few years, we have covered plenty of neat rowing apps and smart rowers here. RowedBiker for iPhone is also worth a look. It lets you use your Concept2 or WaterRower with workout apps such as Zwift by emulating a smart cycling trainer. This means you will be able to use the training plans available for cyclists and runners on your rower.
This app has Cruze and Power Reserve modes. In Cruze mode, your power is locked to a certain level. In Erg Mode, you will be able to try workout games that move between different effort levels. RowedBiker has simple instructions that show you how to connect your rower.[where to get it]