One of the cool things about the 311 app is that each time you use it, the app adds to a continuing record of your reports to 311. So if something becomes a chronic complaint with you (and with any of your neighbors), there’s a record of it.
The iPhone and the Android version can both be downloaded from this webpage.
To be clear, when you’re on that webpage, you’re not looking for the app at the top of the screen. We are not talking about Ready NYC. We’re talking about the 311 app, which is on the right side, a few rows down: