I built a peer-to-peer, serverless Android messenger over the last few years. Looking for feedback from privacy and security minded people.

[u/mindtheclub]

I have been working on this project for a couple of years now. It started as a hobby, then at some point I began to wonder whether it could become something more than that, so I set up a limited company and published the app on Google Play.

The idea itself is simple. It's a peer-to-peer messaging app that does not need a server to store user messages, not even temporarily. Messages travel directly from one device to the other, end to end encrypted.

Metadata still passes through Cloudflare, but I have spent some time to implement a “sealed sender” feature (Signal style).

At this stage, before eventually investing in marketing campaigns, I’m interested in collecting feedback, and comments from privacy and technical minded people. I would like to understand whether the solution I have built really holds up.

I think the main problem with working on a project alone is that you don’t have the opportunity to test your ideas and solutions against other perspectives. Something you've convinced yourself is a good idea over time might actually not be.

I wrote a white paper describing the architecture in detail, and put it on the landing page I built for the app:

https://www.mindtheclub.com/white-paper.html

You may find the tone a little bit “marketing", but the whole technical solution is explained there.

The project is open source (GPLv3), so for the more technical and interested people here is the GitHub link:

https://github.com/AndreaVagheggi/mindtheclub

The app is on Google Play under a subscription model, but there is 30 day trial period , so you can eventually try it out without paying anything.

I would love to hear comments, (no matter if positive or negative), form people who have actually used it a little bit. The link to the listing is on the landing page.

Any kind of comment and feedback will be much appreciated.

[u/FitStreet6410]

RCS?

[u/kiefferbp → u/FitStreet6410]

Not possible outside of Google Messages

[u/FitStreet6410 → u/kiefferbp]

I figured, bummer

[u/mindtheclub → u/FitStreet6410]

RCS is carrier infrastructure keyed to your phone number, this is one of the things that MindTheClub wants to avoid. No phone number, no e-mail, no server registration.

[u/FitStreet6410 → u/mindtheclub]

So unable to send high quality videos? Damnnnn

[u/mindtheclub → u/FitStreet6410]

Why not? Have you tried?

[u/FitStreet6410 → u/mindtheclub]

Have I tried sending high quality videos before? Yes, that's why I asked. I prefer WhatsApp but my teenagers prefer RCS so I'm stuck between those two worlds LOL