Adobe Revel requires a subscription ($5.99/month). Get the app and try Revel for free for 30-days.
Revel is a photo app for your Mac, iPad, and iPhone where your photos act just like your email. Put photos into Revel and you can access them anywhere you have Revel installed. Best of all, everything you do in Revel is automatically and effortlessly sync'd across your Mac, iPad, and iPhone. So no matter where you are, you have all your memories with you and everything you need to keep them organized and make them look great.
||Free to try
Mac OS X 10.7,
Mac OS X 10.8