Stemzel vs Nimbus Synth

Stemzel splits any song into four stems — vocals, drums, bass, and other instruments — entirely on your iPhone. No cloud uploads. No subscription. No account required. IMPORT YOUR AUDIO • File — pick from Files, iCloud Drive, or anywhere on your device • URL — paste a direct link to an MP3, M4A, or WAV file • Record — capture audio with your microphone and split it instantly MIX AND EXPORT • Mute or solo any stem to hear exactly what you want • Play back your mix with a built-in waveform scrubber • Export individual stems or your full mix to the Files app PRIVATE BY DESIGN Every split runs on your device using on-device AI. Your music never leaves your iPhone. No servers, no tracking, no ads. ONE-TIME UNLOCK Pay once, use Stemzel forever. Unlimited splits and downloads — no monthly fees, ever. PERFECT FOR • Musicians learning parts by ear • DJs and producers isolating elements • Karaoke and acapella practice • Remixing and sampling workflows • Anyone who wants stems without uploading to the cloud Stemzel is built for speed and privacy. Import a track, wait a moment while it separates, then mute the vocals, solo the drums, or export everything — all from your pocket. Questions or feedback? Visit stemzel.com/support

Nimbus Synth is an ambient instrument you play by moving. No keys, no piano roll, no menus to learn. Tilt your phone, drag a finger across the screen, and slow, evolving drones grow out of the motion. Every gesture shapes the sound in real time. SIX VOICES Layer up to six ambient timbres: Sub Drone, Warm Pad, Glass, Air, Metallic, Cello Dark, each with its own character, sculpted through tilt and touch. ALWAYS IN KEY Seven scale modes and note-exclusion keep whatever you play in tune with itself. No wrong notes. LOOP AND LAYER Record a phrase, loop it, and keep playing on top. Quantize to tempo, add a metronome with time signatures and subdivisions, and build a piece one layer at a time. SAVE YOUR IDEAS Keep a library of recordings and slot presets to return to later. NIMBUS SYNTH PRO A one-time unlock, no subscription: • Unlimited saved ideas and presets • Export recordings as WAV and MIDI (free tier exports MP3) • MIDI Out: send what you play live to a DAW or hardware synth over Network MIDI Made for headphones, a quiet room, and a phone in your hand.