Tistiq calculates stats for all your current text conversations and presents them through a beautifully designed interface. Settings are included to allow you to tweak the results to your liking. Also included is the ability to change the app’s theme. Choose from six color choices to find one that suits your taste.
Tistiq is open source! For those interested, check it out at: https://github.com/josecalles/Tistiq
Unfortunately, this app only supports devices with KitKat or higher to guarantee a consistent user experience.