To be honest, I haven't used it. I didn't want to install an app. I’d recommend launching a web version quickly. The biggest barrier to this service is likely the fact that it requires installation.
It feels like a "TikTok-ified" version of a directory site. Since it’s a novel concept, I think it could attract a significant number of users—provided it’s fun and goes viral.
That seems like a fairly novel idea. I’m not sure if it uses AI or OCR to analyze the images, but the external recording of sensitive information—such as that found in PDFs—could raise privacy concerns. It will be important to address these concerns and reassure users.