If you're using GeoNadir from a new device, or haven't been active for a while, you'll be prompted to sign in again.
Simply enter your email and we'll send you a secure verification code that's valid for 10 minutes. Grab this code, enter it, and you're in!
If you're not automatically prompted to sign in, you can always access this by clicking the avatar icon in the bottom left of the GeoNadir screen.