New app for pilot house math

I’ve just finished being a beta tester for a new app called Pilot House Helper. Developer just made it available for iPads and iPhones on the app store.
(Disclaimer: my brother is the developer and made the app because I asked him to.)
Functions include Rate of Turn / Radius of Turn calculator, Advance in a turn, Time for Course Change, Swing Circle at Anchor, Speed/Time/Distance, Conversions, and a Checklist creator.
Works great. I’m a SE Alaska Pilot and I literally use it every day.
$3.99 in the app store.
Pilot House Helper