Fold it, it plays
The Fold reads its hinge to know whether it is open or closed. Folded, the cover screen becomes the cassette deck, and the tape starts rolling.
Products · Galaxy Z Fold 8 · Now on Google Play
Bionic Tape.
Unfolded, you pick a tape from the shelf. Fold it, and the phone becomes a cassette deck: reels spin, the tape hisses, the keys click. Music comes from YouTube Music, from your own files or from the built-in demo tapes. A product of HMZ craftsmanship GmbH, without ads and without tracking.
Get it on Google Play GuideiPhone DuoWhat's new?Version 1.0 · Android 12+ · 2.99 USD, buy once
YouTube Music, your own music and demo tapes · Spotify as a beta for invited accounts
YouTube Music, your own music and demo tapes · Spotify as a beta for invited accounts
Version 1.0 · 09.10.2026
Out of beta, onto Google Play. Thank you!
What started as a weekend experiment is now an app in the Play Store. Many of you tested the beta, sent feedback and asked for features: winding within a song, the intro, the shelf with real cassette cases, the volume wheel. All of that is in version 1.0. Thank you!
YouTube Music for everyone: Google has reviewed and verified the app, so the sign-in now works for every account, no beta access needed.
More to come: More music services and new skins follow as free updates. Spotify stays a small beta for now: Spotify only opens its interface to very large apps. Had the beta APK installed? It is a separate app: install Bionic Tape from Google Play, then you can remove the old one.
What it
does.
A shelf of tapes
Unfolded, your playlists and albums sit on the shelf as cassettes, each in its case with cover art. Hold a tape and drag it into the deck: the case opens and the cassette clicks in.
Keys you can press
PLAY latches, STOP·EJECT ejects. FF and REW: tap to skip a track, hold to wind within the song. With travel, click and haptics, plus a volume wheel with 16 detents.
Tent mode
Stand the folded phone up sideways and the cassette becomes the show, with your playlist's cover art as the label. Tap for play/pause, swipe for the next track.
Full-screen cassette
Tap the cassette: housing and keys disappear, leaving only the tape winding from reel to reel.
Six skins, TAPE FX
Sport in 80s yellow, Classic, Bionic OS, Cyberpunk, HMZ.swiss and Llama Amp with an LCD display. Hiss and clicks can be turned off with TAPE FX.
Guide
Three steps to the first tape.
- 01
Install from Google Play
Search for «Bionic Tape» on Google Play or use the button above. Buy once, no subscription. Runs on any Android 12+, made for the Galaxy Z Fold 8.
- 02
Bring your music
Tap ✦ and connect YouTube Music, or allow access to music and audio for your own files. The demo tapes play right away, no account needed.
- 03
Tape in, fold it
Hold a tape on the shelf and drag it into the deck, or just tap it. Fold the phone, and the tape rolls on the cover screen.
Where the music comes from
YouTube Music
for everyoneYour playlists and Liked Music as cassettes, via Google sign-in (read only). Playback runs in the official YouTube Music app; background playback needs YouTube Music Premium.
Your own music
no accountMP3, FLAC, AAC and OGG from the Music folder, every album a cassette. Plays offline and with the screen off, controlled from the notification or the lock screen.
Spotify
BetaFor invited accounts for now: tap «Request beta access» in the app, the email is prepared for you. Requires Spotify Premium.
Coming with the iPhone Duo
To the iPhone Duo Pack →And for the iPhone?
The iPhone version is with Apple for review, with Apple Music, your own music and the demo tapes. It is built for unfolding and folding the iPhone Duo and also runs on every other iPhone. As soon as it is on the App Store, the link goes here.
Small print: A project of HMZ craftsmanship GmbH, not a product of Sony, Samsung, Spotify or Google. Built for the Galaxy Z Fold 8, but runs on any Android 12+: without a hinge, you pull a tape down to play it. No ads, no analytics, no account with us; the Spotify and Google sign-ins stay on the device. More in the privacy policy and the terms of use, every version in the changelog.