Purchase Tennis Board v1.1.4
If you want to use Tennis Board on several handhelds, you have to purchase several licenses. Buying more than one license at the same time gives you a discount on the overall cost. Of course, you can gather with other people to lower the price.
Two versions can be purchased. Basically, the standard version provides a light charting (does not allow to track strokes) as well as score keeping and umpiring. The professional version brings all the possibilities, it includes the standard version and allows detailed charting with strokes analysis.
Umpiring
Tennis Board - Standard : 29,50 Euros
Tennis Board - Pro : 64 Euros