MSSYour opera library,
in your pocket.
MSS is a private, self-hosted music app for iPhone — your own recordings, beautifully organised, with gapless lossless playback, offline downloads, and lock-screen controls.
Coming soon to the App Store.
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Lossless, gapless
Direct-plays FLAC and ALAC end to end — no silence between movements, no quality lost to transcoding.
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Yours alone
Connects only to your own server. No accounts on our side, no tracking, no ads — the app collects nothing.
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Offline anywhere
Download albums to play with no signal — on a plane, underground, or off the grid.
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Passkey sign-in
Sign in with Face ID or Touch ID — no passwords to remember, leak, or reset.