Envelop

Share private files easily, without losing their ownership

Envelop is a very simple free file-sharing app. Upload a file, get a download link, and share it. That's it.
Envelop runs on blockstack. So you decide where your files are stored. Use the default unlimited storage or setup your own. There's no file limits. No tracking. And it's open source. We have a Web app and an Android app.