Read Your Body is a highly customisable period tracking / fertility charting app!
To help orientate you to the app's many features, purple tooltips display throughout the app's menu / data / chart / calendar / stats screens when you first install and land inside the app.
These purple tooltips can be closed / minimised using the X buttons if you don't want to see them.
If you ever want to revisit these purple tooltips, simply tap the purple info icon bottom right on your menu / data / chart / calendar / stats screens (see screenshot below) and then tap 'View top tips'. In this pop-out from the purple info icon you also have a direct link to 'Contact us' for support.
If you no longer want to see the purple info icons bottom right on your menu / data / chart / calendar / stats screens, you can tap 'Exit help mode' in the pop-out (see screenshot below). Note that this 'Exit help mode' option is only available if you've been using the app for at least 14 days, or sooner if you've viewed all of the purple tooltips throughout the app.
If the purple info icons are no longer visible bottom right on your menu / data / chart / calendar / stats screens (because you've exited help mode) and you want to revisit the purple tooltips, you can always go to Menu > Support where you'll see a shortcut help menu which allows to revisit any of the purple tooltips that you choose at any time.