I have the Waypoint in .308 with a carbon fiber barrel. I looked at the Seekins. They are very similar. Low weight, good trigger, Seekins is 1:8 twist, Waypoint 1:10 if that matters to you.
My Waypoint meets the .75 moa guarantee with just about any ammo I put through it.
I have iPhone 12. OnX doesn't work well. Slow to load. Maps can't find latitude/longitude. I noticed another post that said they contacted customer support and resolved issue. I'll give that a try too.