Logo for Web App

I need a logo for my web app (fastwts.com), it is a progressive web app and it allow people to chat quickly in WhatsApp with users without the need to save them, the current logo is WhatsApp logo and lightning, I need a simple logo that is safe for all type of apps android and iOS (minimum safe area for maskable icons), I need the Vector, SVG, and PNG formats, you need to have an idea or use my current logo idea but with good implementation.