They may be only months old, but these startups changed technology in 2015.
Take live-streaming app Periscope.
It was acquired before even launching to the public, then capped off the year being named Apple's iPhone app of the year. Meanwhile, Jet had a splashy debut that aimed to chip away at Amazon's ecommerce empire.
We narrowed down the list of startups which launched this year to 25, and to determine the best, we took into account factors like funding, revenue, growth, and investor interest. We're including startups that came out of stealth or opened to the public as launching this year as well.
Did we miss a great startup that launched this year? Let us know in the comments!
SEE ALSO: A top VC firm just put together a stunning presentation on the state of startups
Hungryroot turns vegetables into bright and delicious pasta dishes.

What it is: Former Groupon exec Ben McKean launched Hungryroot to turn veggies into amazing pasta dishes. When you order from Hungryroot, you get a packaged meal the next day that consists of 70% to 80% vegetables and 20% protein. The base ingredient is vegetable noodles — made from sweet potatoes, radishes, beets, zucchinis, and more — paired with a creative sauce, and served with an optional protein side. In its first month, Hungryroot sold 10,000 meals.
Funding: $2 million from Lerer Hippeau Ventures, Crosslink Capital, Brooklyn Bridge Ventures, and KarpReilly
Website: https://www.hungryroot.com/
Periscope is the video livestreaming app Twitter bought before it even launched.

What it is: In March, Twitter launched Periscope, a livestreaming app it acquired back in February before Periscope even launched. Periscope lets users easily stream video footage from their devices to followers. Viewers can comment and send "hearts" to the streamer. The footage can be then replayed later, which sets it apart from rival app Meerkat, where the footage is gone once the stream is over.
Website: http://periscopeapp.tv/
The League is a dating app for the elite.

What it is: The League — a selective dating app for elite, successful individuals — launched in San Francisco earlier this year, and it just launched in New York City. Stanford graduate Amanda Bradford founded The League to match up highly motivated and interesting single professionals. Its users often have advanced degrees.
Funding: $2.1 million seed round from Jon Vlassopulos, IDG Ventures USA, Roman Feola, Naomi Gleit, Cowboy Ventures, XSeed Capital, Peter Kelly, Russ Siegelman, Mark Leslie, Allen DeBevoise, SherpaVentures, Structure Capital
Website: http://www.theleague.com/
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