Can anyone explain to me what Parse actually is? Based on a quick read of https://parse.com/apps/quickstart#parse_data/mobile/android/native/new https://parse.

Can anyone explain to me what Parse actually is? Based on a quick read of https://parse.com/apps/quickstart#parse_data/mobile/android/native/new https://parse.com/apps/quickstart#parse_data/mobile/android/... this is basically a cloud-based key-value store, is that correct? And the value-add is basically that you can subscribe to stuff, and they did all the finicky cross-platform stuff to get it to work in mobile devices? And this is something that any competent developer could write in-house in a few days, but what they were selling it for is a lot cheaper than a few developer-days?