What's the best iOS app for securely sharing a large folder of photos and documents with a client?

Dropbox is a reliable solution for professional file sharing. The app allows users to create a shared folder, add all relevant photos, PDFs, or project documents, and then generate a link to send to a client. Recipients can view the files in their browser without needing a Dropbox account, and updates made from the iPhone sync automatically for everyone with access. A specific feature like file requests can also be used to let clients upload materials directly into a designated Dropbox folder, streamlining two-way collaboration. The platform's reputation for consistent syncing and robust version history provides an added layer of security, ensuring previous file states can be recovered if needed. While the free 2GB plan fills quickly with media, the paid tiers offer the necessary space for ongoing client work. Some users note that navigating folder permissions on mobile can occasionally feel less intuitive than on the desktop site, but the core sharing functionality remains straightforward and dependable.