Google’s official Project Fi app has now landed in the Play Store, following the announcement of the Mountain View company’s MVNO earlier this month. The app lets you activate service, tweak your account settings, check how much data you’re using, see your monthly bill, and more…

Project Fi is launching on an invite-only basis, and not many people—outside of some Googlers we’re familiar with—have access to the service at this point. But Google is supposedly launching Fi more widely soon, and if you plan on signing up for the service, this is the app you’re going to need to get started.

Fi is going to be available exclusively on the Nexus 6 at launch, and uses both Sprint and T-Mobile data networks to make sure you always have the best LTE connection possible. The service costs $20 per month for “Fi Basics” (including unlimited talk & text, WiFi tethering, and more), and Google is charging a flat $10 per GB of data on top of that. Check out the announcement post to read more about Project Fi.

Here’s the full app description:

Project Fi is a new wireless experience from Google designed to help you get the highest-quality connection, enable easy communication across networks and devices, and make the service experience as simple as possible. For more information about Project Fi and how to sign up, visit google.com/fi and request an invite. If you’re a user of Project FI, use this app to: • Activate your Project Fi service • Manage your account and settings • Check your data usage • See your monthly statements • Get in touch with support 24/7

You can grab the app for free on the Play Store.

Our thoughts: This is the app you’re going to need to activate service on your Nexus 6 once you’ve been invited to Fi. Not many people (if any) public users have been invited at the time of this writing, so the app is mostly useless at the moment. But now that it’s available for download, maybe we’re getting close to the first round of invites rolling out.

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