The 21 app allows you to earn bitcoin in exchange for answering messages and completing tasks. Users set up a 21.co public profile, enabling others to send messages and tasks to the user without revealing personal contact information. After answering a message or completing a task, you will receive a task reward in bitcoin.
Naval Ravikant
21.co finally makes micro-transactions and micro-attention usable on the web. People's time is worth money but until now it was too difficult to get paid for it. 21+Bitcoin makes it viable. (disclaimer: investor, but I invest in anything I like in the space)
Balaji S. Srinivasan- Coinbase CTO. Cofounder Counsyl & Earn.
I'm obviously biased, but I think 21.co is pretty good :) Aside from our own product, big fan of our friends at Coinbase.
I think what we're doing with 21.co makes blockchains/digital currency actually useful for normal people and for businesses. See previous Product Hunt thread here. And I think Coinbase is a wonderful on-ramp for anyone to get into Bitco… See more
Will Manidis- Founder, TrackYourDisease
21.co has been incredible for the few months I've used it. No bullshit, well paying surveys targeted directly at your skills that pay out either to charity or straight to your bitcoin wallet. Recent addition of lists only made it easier to get relevant surveys to your inbox.HuffPost
In 2010, a developer purchased two pizzas using the forum Bitcointalk.org. He paid 10,000 bitcoins for the pizza. The price of Bitcoin today is 2X the price of ounce of Gold. Had the developer kept his 10,000 bitcoins, he would have had $25 million dollars today.WSJ
Silicon Valley visionary Balaji Srinivasan explains how bitcoin works and why he regards it as revolutionary.Yahoo
Before 21 Inc. had even put out a product, it had raised $121 million in venture funding -the most of any bitcoin company. It was unclear, for months, what 21 would actually do or make. But some of the biggest names in fintech funding, including Andreessen Horowitz, Khosla Ventures, and the Winklevoss brothers, were interested enough to invest.TechCrunch
Today at Disrupt, 21.co CEO and co-founder Balaji Srinivasan outlined his company's unusual evolution and announced the launch of a new system for kickstarting the site's user base by incentivizing people with tokens for doing things like signing up, getting verified and performing certain tasks.
