SyncFlow — Access your Android SMS/MMS from Mac and Web without going through Google https://sfweb.app

I've been working on SyncFlow as a privacy-focused way to access Android

SMS/MMS, photos, File transfer from a computer without going through Google's servers.

  The problem with Google Messages for Web:

  - Your messages route through Google

  - Requires constant phone connection

  - No real encryption for SMS

  - Google controls the experience

  SyncFlow's approach:

  - No big tech middleman: Messages are stored on dedicated independent

infrastructure — not Google, Apple, or any third-party cloud

  - E2EE: Messages are encrypted with Signal Protocol

  - MMS attachments stored on Cloudflare R2 with presigned URLs

  - Firebase Auth is used for identity only — all message data is stored

separately and encrypted

  - Works offline — your phone doesn't need to be online to read history

from Mac or web

  Native apps for Android and Mac, plus a web client. No accounts with Google

  or Apple needed beyond initial authentication.

  What you need:

  - Android phone + Mac or web browser

  - ~2 min setup (install Android APK, download Mac app, sign in)

  Free tier: 200 messages/month. Paid removes the limit.

  Downloads: https://sfweb.app/download

  I'm a solo Vibe coder building this because I wanted it for myself. Happy to

  answer questions about the architecture or privacy model.