No App to Download, Just the PDF
Most scanner apps ask you to install them, sign in and watch ads. Here there is nothing to download: open the page, add photos, and the finished PDF downloads to your phone or computer for free. On a phone it goes to your Downloads or Files app, ready to share on WhatsApp or upload to a portal.
Because nothing is installed, it works the same on Android, iPhone, Windows and Mac. Bookmark the page or add it to your home screen to open it like an app next time.