Social network Google+ is bringing its recently launched feature called Collections to iOS starting today.

Launched in May, Collections functions similarly to Pinterest pin boards. Google+ users can create “a collection” around a certain topic and then use it to post relevant content like pictures, videos, photos, events, and polls. For example, you could create a Collection around rock climbing where you post videos of mountains you’ve climbed or pictures of pitches you’re scoping out. Collections are searchable, and Google also provides a feed of featured Collections to help users discover new content.

The iOS version of Collections will also be searchable, though users will have control over who can and cannot view their Collections.

Google+ has had trouble gaining substantial footing as a social network. Though it boasts 2.2 billion users, independent data analysis indicates that only a small percentage of those accounts is active. While Facebook’s iOS app ranks number two among all iPhone apps in the U.S., Google+ doesn’t make the top 200, according to App Annie. Perhaps in acknowledgement that its social network isn’t working, in July the company said Google+ will no longer act as a user’s identity across all Google products.

Despite low traction, Google continues to build its social network in the hopes that one of its features will meaningfully stoke engagement. You can check out the latest version of Google+ on iOS here.