![Address: 5900 PENN AVE, PITTSBURGH, PA 15206-3834, USA | Pennsylvania United States ZIP Code 5 Plus 4 ✉️ Address: 5900 PENN AVE, PITTSBURGH, PA 15206-3834, USA | Pennsylvania United States ZIP Code 5 Plus 4 ✉️](https://pa.postcodebase.com/envelope/15206-3834.png)
Address: 5900 PENN AVE, PITTSBURGH, PA 15206-3834, USA | Pennsylvania United States ZIP Code 5 Plus 4 ✉️
![Duolingo and Restoration Hardware expected to lease 5900 Penn Ave. in Pittsburgh - Pittsburgh Business Times Duolingo and Restoration Hardware expected to lease 5900 Penn Ave. in Pittsburgh - Pittsburgh Business Times](http://media.bizj.us/view/img/2584791/restoration-hardware01*1200xx900-506-0-47.jpg)
Duolingo and Restoration Hardware expected to lease 5900 Penn Ave. in Pittsburgh - Pittsburgh Business Times
![Jake Gill (高健) on Twitter: "I know Duolingo is manipulative, but this email is pretty ridiculous. Also, Duo probably didn't learn 100 Japanese words... Duo tapped on some multiple-choice questions for five Jake Gill (高健) on Twitter: "I know Duolingo is manipulative, but this email is pretty ridiculous. Also, Duo probably didn't learn 100 Japanese words... Duo tapped on some multiple-choice questions for five](https://pbs.twimg.com/media/E6hmCSmVoAEIryp.jpg:large)
Jake Gill (高健) on Twitter: "I know Duolingo is manipulative, but this email is pretty ridiculous. Also, Duo probably didn't learn 100 Japanese words... Duo tapped on some multiple-choice questions for five
![I neglected Duolingo for 20 days after signing up. Here's every email they sent me. | by Ben Davies-Romano | UX Collective I neglected Duolingo for 20 days after signing up. Here's every email they sent me. | by Ben Davies-Romano | UX Collective](https://miro.medium.com/v2/resize:fit:1400/1*bkFFmc3vrnOHdeFL6QbvsA.png)