As of this writing, Google seems to be the only company that can challenge Facebook in the social space. They understood that good interactions and streamlined privacy controls can drastically improve the user experience on a social network.
Having said that, the Google+ app on iOS is falling short of the standards set by its Web counterpart. The app is a mishmash of Web views, experimental touch interactions, and unpolished graphics. The result is a sub-par user experience.
To start off, users have to go through two completely useless screens to get to the sign-in form. In order to create an account, you have to hunt down a blue underlined link in the second screen, only to be taken to a poorly designed Web form. One solution would be greeting users with the actual sign-in form as mocked below:
Dashboard navigation on mobile apps is as hacky as a design pattern can get, especially when a tab bar can perfectly fit the bill. As for the default tab, it would be safe to assume that users will be spending most of their time on the stream. The mockup below shows how a native tab navigation could save users a few taps and leverage what they already learnt on iOS.
Notifications would appear next to the logo in the navigation bar, making them hard to miss regardless of where you are. Content should be given more prominence by using the full-width of the screen. Ideally, raw URLs should be hidden as long as the actual content of the link is displayed inline.
Buttons might be a hack, but it’d be safe to assume that users won’t be switching streams often enough to justify gesture-driven navigation. Instead, touch gestures should be used to perform the frequent action of plus-one-ing posts. A popover would be a perfectly scalable design pattern to handle circle switching. Other post-specific actions such as commenting or sharing would be revealed by single-tapping the post cell itself—a pattern that was battle-tested by Tweetbot.
While these concepts are in no way a panacea for the current interface shortcomings, they could be a very good start if Google decides to get more serious about its fledgling social network.