Gravity Machine vs Zevio

A tiny solar system that plays piano. Four orbs, a gravity well, and walls that ring like bells. Fling an orb and it falls, ricochets, and plays notes. Where it hits a wall decides what it plays; the physics decide when. You don't write the music. You build a small world and curate what it sings. Gravity is a touch instrument first. Grab an orb and it follows your finger; let go and the throw becomes its velocity. Drag the gravity well and every orbit in the room bends. Set Pulse and the well breathes in time with the tempo, so chaos starts keeping a schedule. EVERYTHING LANDS IN KEY Every impact point along the boundary maps to a note of the current scale, low at one end, high at the other. Pick from 16 scales and 11 tuning systems (12-TET, just intonation, maqam, shruti and more). The scale strip along the bottom is a key-change timeline: tap a segment, change the key, and the whole world modulates on the bar. EIGHT WORLDS TO BOUNCE IN Rectangle, circle, triangle, hexagon, pentagon, octagon, diamond, star. Sharp corners ricochet hard and play jagged. Round shapes glide and play smooth. SOUND A 16-voice pluck engine through a double-bass body and reverb. Octave, key range, quantize from 1/32 to 1/2, orb-to-orb collisions on or off. Presets to start from, themes for the visuals. AUv3 AND STANDALONE Use Gravity full-screen as a standalone instrument, or load it as an AUv3 in GarageBand, AUM, Logic Pro, Cubasis, Loopy Pro and any other Audio Unit host. Each orb has its own MIDI channel, so Gravity can drive other instruments in your host. ONE PRICE No account, no ads, no in-app purchases, no data collected. Buy it once and it's yours. The same engine ships as a VST3 and AU plugin for Windows and macOS at touchmachines.com.

Zevio is a skeuomorphic music player for the audio files already on your iPhone. Turn the knob to move the cursor. Tap to play. The LCD, buttons, and volume slider are built to feel like a small hardware deck, not a streaming app. FREE • Play MP3, FLAC, WAV, AAC, ALAC, and other common formats • Browse All Songs, Artists, Albums, and nested folders • Loop one track • Choose the app background • English, Chinese, Japanese, Korean, German, French, Spanish, and Arabic LIFETIME PRO (one-time purchase) • Shuffle • Previous / next track, including Lock Screen and Control Center • Display themes: Standard, E-Ink, Watch LCD, VFD, Thermal • Manage Music: import, rename, move, delete, and edit tags from your computer over Wi-Fi Your music stays on the device. Zevio does not stream from the cloud. Keep the Manage Music screen open on the phone while you upload from a browser.