Garmin is launching Connect IQ 3.0, the latest edition of their open platform for third-party developers to create apps for Garmin wearables, bike computers and outdoor handhelds.

Connect IQ launched three years ago and there have been more than 54 million app downloads to more than eight million compatible devices.

Announced at the company's second Connect IQ Developer Summit at Garmin headquarters in Olathe, KS., the latest Connect IQ 3.0 opens up Garmin's audio player platform, enabling third parties to integrate music, podcast, audio book, and other content into compatible Garmin devices. Developers will also be able to integrate Garmin's onboard maps into their apps, and work with an expanded notification system.

New Connect IQ apps announced at the event include apps from MySwimPro, Trailforks, Yelp, iHeartRadio and GU.

The MySwimPro app will help swimmers train better with six, eight, and 12-week personalized training plans. The new Yelp by Garmin app for Edge bike computers has been designed for the casual cyclist looking for a place to ride for lunch and gives users access to Yelp's point of interest database with routes to each location. The Trailforks apps allow users to download favorite mountain biking routes and trails to their compatible Edge device. For music lovers, the new iHeartRadio app lets iHeartRadio subscribers sync their playlists to their music-enabled wearable for on-the-go listening, no phone required. The GU Data Field 2.0 keeps alerts athletes when to take a packet of GU during their ride or run. In the new GU Data Field 2.0 version, the intelligence of the reminder logic has been upgraded to take the athlete's exertion into account.