Mary Barra

GM CEO Mary Barra on @Tesla partnership: "One of the things I think the industry could do is partner more; We saw this as an opportunity for GM. We'll be able to save $400M; We (Elon (Elon Musk) & I) actually text each other. We've met before on a handful of occasions, and I texted him." https://twitter.com/SawyerMerritt/status/1673823033767723009

Question : Which phone / app ?