Your website is also an app
The term Progressive Web App (PWA) was invented by Google back in 2016, and have now become a standard on all platforms. It delivers fast, native-app experiences without the hassle of appstores and downloads.
PWAs allows your website to be installed and run like a native app, and works even while offline. Instant install banners are even shown on android devices.
Being web-based it's easily discovered through a simple web search with no friction, unlink the complex flow of guiding users through the appstores.