Email support@sawhorseapp.com — we read everything.
Restore a purchase: Settings tab → Restore Purchases. Pro is a one-time purchase tied to your Apple Account.
Rounding: results round to your precision setting (1/8–1/64). The ≈ mark means the exact value was rounded for display; the math underneath is always exact.
Verify before cutting: solver outputs follow published trade conventions (IRC stair limits, nominal board-foot tally). Always confirm dimensions on site — codes vary by jurisdiction.