The GRAYLL App is developed as a PWA (Progressive Web App), it can be downloaded on most mobile device (phones, tables), notebooks, laptops and desktops. When you visit the web version of the GRAYLL App and you have not downloaded it to your device yet there should be a button visible to either "Install GRAYLL App on My Phone" for mobile devices or "Install GRAYLL App on My Desktop" for notebooks, laptops and desktops.

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