We've got about 6000 photos to manage and they are pretty much all tagged using keywords in the exif data.

To manage this many images I need an app that can easily sort and search by both date, and those tags. I seem to be coming up blank finding an ipad app that can do this.

Does anyone have any suggestions? I've tried a few free and paid apps that get recommended a lot, but most seem (to me) to be pretty much unusable with more than a few photos.

I'm thinking the issue is I don't use iphoto on a mac to set up folders and to sync from (imported them from a PC).