The app currently features a database for 12 of the larger metropolitan areas in the U.S., including Boston, New York, San Francisco, la, Chicago, Seattle, Portland, and Austin.

该应用的数据库目前只覆盖了美国境内的12个大都会，这其中包括，波士顿，纽约，旧金山，洛杉矶，芝加哥，西雅图，波特兰，还有奥斯汀。

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That venture, currently only available in New York, San Francisco and Portland, Oregon, has not performed too well, according to data from industry tracker Yipit.

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New York City, Minneapolis, and Portland, Oregon are amongst those that will join the ranks of stability by the end of this year.

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Charlotte, Chicago, Cleveland, Detroit, Las Vegas, Miami, Minneapolis, New York, Phoenix, Portland, Oregon and Tampa.

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