apps you can breathe in. a mixtape for the hardware you already own.
Phone apps that behave like devices, made by one person at home. On Android today, iPhone soon.
Vol. 1 · 2026
pick a track on the card, or press play
APPxygenmix vol. 1
for the hardware you already own
Recorded at home. Each track is an app; press one to play it.
Side A
Side B
Liner notes
APPxygen is a one-person studio making apps for your phone. The name is a pun on oxygen: small things that give life to the hardware you already own. A hinge becomes a cassette door. A phone becomes a field recorder.
How it's made
Apps that feel like devices, not screens. Keys that clack, with their own sounds and haptics. Reels you can grab. Labels you write by hand. If a real machine would let you do it with your thumb, the app should too.
House rules
No accounts, no ads, no tracking. Foldman doesn't even ask for internet access. Write to the studio; a person answers.
now playing: Foldman✶AP-7 is warming up✶side B: your idea here✶apps you can breathe in✶Android today, iPhone soon✶no ads, no tracking✶home taping is fun✶
now playing: Foldman✶AP-7 is warming up✶side B: your idea here✶apps you can breathe in✶Android today, iPhone soon✶no ads, no tracking✶home taping is fun✶
side A, track 1
Foldman
Close the lid. Press play.
Your foldable becomes a cassette deck. Open it to pick a tape, close it to play. Every album is a tape that stands in a rack, keeps its place, auto-reverses and slowly wears in: it yellows, picks up scratches, and gets dirt you can rub off with a finger.
Made for book-style foldables, tuned first for the Galaxy Z Fold 8. No songs come in the box: it plays music you own. Get the APK today; the Google Play Store version is coming soon.
openthe cassette door: pick a tape, drag it into the deck
half openthe service hatch: folders, wind speed, tape wear
closedthe deck: the cover screen is the player
No internet permission. At all.Free · v1.0Google Play: soon
the cover screen is the deck. piano keys clack, with haptics STOP twice = eject!albums stand in a rack as tapes. drag one into the deckhold a tape to read its card. write the label by hand or typewriter (Thai too)half open = service hatch. wind it with a finger in the hub, chill a stretched tapehover a xerox to see it in colour
side A, track 2
64×32 dot display
red lamp = you're recording
lever: wind or rewind at 8×, you can hear it
grab the reel to scrub. touch it mid-take = off the record
M = tape list
Press ● to record, ▶ to play, ■ to stop. Drag the reel, hold the lever. Works with Tab and Enter too.
AP-7
A field recorder for your pocket.
An aluminium face, a reel you can grab, a dot-matrix display and a red record lamp. It's field-recorder inspired and records 48 kHz, 16-bit WAV, in silver or graphite.
●Record. Press again to pause.
■Stop. Press again to rewind to the top.
+ −Next or previous tape.
holdLong-press the app icon and it's already recording. The side button takes a memo even from the lock screen.
Tape to text ✦ brain AI
Transcribe a tape with Gemini Flash, ElevenLabs Scribe, OpenAI Whisper or gpt-4o, or your own whisper.cpp server. Then ask it to:
Inspired by the Teenage Engineering TP-7. The story
side B, track 1
Recording now
Side B is still blank.
The next app is on the bench. If there's a gadget you wish your phone could be, a tape deck, a pager, a label maker, tell me. The best ideas get recorded.
