I’m always skeptical when someone has a new APP that supposed to help make tennis leagues etc easier, but thats actually what Double match point does for me. Its an easy to use APP that lets me quickly go on and find my schedule, mark my availability, look at line ups and look at results. No more clicking through hard to find links on Tennislink (which is very hard to navigate on a phone). No more going through google spreadsheets for availability. Everything is just a couple taps away with this app. This also makes the touch-less exchange of line up easier and the ability to communicate with teammates through the group chat removes a ton of notifications from my texting apps bc I seriously hate group texting.