Yes — there is a Continue with Google button on both the Sign in and Create your account screens, so you can use your Google account. Tap it, approve the request on Google's consent screen, and you land back on MarbleMap.
The first time you come in through Google, the Just one more step screen asks for your company details: what you are joining as (Buyer, Supplier or Both), plus Company name and Country as required fields. Website, VAT / Tax number, Phone and Company description are optional. Complete setup saves it. Our team needs these details to verify your account — email sign-ups are asked for exactly the same things. You can change your role later from Settings.
If your company details are already on file, you go straight through to your account. If your application is still under review, Google sign-in takes you to the application status screen instead — it does not skip the approval step.
When Google sign-in fails, you are returned to the sign-in screen with the error message; retry, or sign in with your email and password. An account opened through Google does not need a separate MarbleMap password.
Also asked as: Can I register with my Gmail account? · Is there social login? · Can I sign up using Google? · Can I get in via Google without setting a password?