First off, love the app and many, many things about it. My suggestion below is merely just to contribute some feedback that helps what is always a great app, elevate it even more.
It would be cool if the app showed your actual winning percentage vs cardmates, and also allowed you to filter by specific time frames (ie- Monthly, Quarterly, Annual, All-time, Custom Time Period, etc). This would allow you to keep track of heads up matches with the various people you play with over periods of time. You could even get fancier and add details around streaks.
Currently, the app only shows your all-time record broken out by Wins, Losses, and Ties. While that’s helpful, would be a great addition to know a little more. You know…especially for folks who may have started later than others and have to stare at a massive all-time deficit in losses. Without it, just kinda falls a tad short and isn’t quite as fun/interesting.
PS- This should be pretty low-hanging fruit for the talented folks at Udisc that work on the app, as you already have the data and just need to add the filter. If you are going to reply and say “Thanks for the suggestion, this isn’t on our radar or possible for the team right now”, maybe provide what type of roadblock you all are giving that is preventing something this easy from being added. Providing a specific reason versus a generic response would serve two purposes:
(1) It would eliminate the thought that you all don’t really care to add something this easy that would be super beneficial; or
(2) If there is a roadblock preventing you from doing it, you may have some users (such as myself) that can walk you through the steps of doing it.
After all, since the data is already there this would be so easy that anyone on your talented technical team should be able to do within a few hours, have it tested, and make it part of whatever the next release is within a day. And since I saw that someone else posted a similar suggestion several years back, kinda hoping not to get a generic response which would make me think you will never have any true intention ln making the change. If that’s the case, wouldn’t it feel better to just say “Hey… We appreciate the suggestion and know it’s an easy thing to do, but……. we just don’t feel like doing it so we are gonna leave you hanging into oblivion.” I’d at least appreciate the honesty and probably would laugh.
Love you (the app), mean it… 
Yours truly,