Starwood Preferred Guest (SPG), an award-winning loyalty program which is part of Marriott International, has launched SPG Mobile Check-In for members at 22 hotels in the United States.

More hotels will begin offering this feature exclusively on the SPG Mobile app with the global rollout completed by the end of 2017.

Marriott first launched mobile check-in, checkout and room ready alerts in 2013. It is now available at all hotels that were in the Marriott portfolio before the company’s acquisition of Starwood Hotels and Resorts

The new mobile check-in feature is available exclusively for members who have downloaded the SPG mobile app and booked their stays directly with SPG on its website or in the app. Members will receive a notification approximately 48 to 72 hours before their stay asking if they would like to check-in using the SPG app.

On the day of arrival, a notification will be sent to their mobile device alerting them that their room is ready and their key is waiting for them at the front desk, and when they checkout using the SPG app, their folio will be emailed to them.

With the SPG app, members can also Make A Green Choice® and request early check-in as well.

SPG Elite members already enjoy the convenience of requesting a late check-out in the app and Platinum Elite members can choose their preferred arrival gift.