PlayStems vs DeeeMix

PlayStems plays multiple audio stems in sync on iPhone, iPad, and Mac. Import one or more audio files into a song, or split a mixed track on your device, then rehearse or perform with each part under your control. Give every song a title and artist. In the mixer, set volume, mute, solo, and balance for each stem, and adjust the master level. Change speed and pitch while the song is playing, scrub the waveform, and loop a marker range until the section sits. Stem splitting runs on your device. A mixed track becomes vocals, bass, drums, and other. It needs a supported device with at least 4 GB of memory: iPhone 13 or newer, iPad Pro 2018 or newer, iPad Air 2022 or newer, or a Mac with Apple Silicon (M1 or newer). Audio is not uploaded. Features • Multi-track playback in sync • Song library with title and artist • Multiple audio files per song • Mixer with per-stem volume, mute, solo, and balance, plus master volume • Speed and pitch while playing • Waveform scrubbing • Marker ranges you can loop • On-device stem split into vocals, bass, drums, and other Use PlayStems to rehearse, perform, or practice a difficult section with each stem under your control. Free version Playback, the mixer, markers, loop ranges, and speed and pitch are included, within these limits: • 1 song in your library, or up to 5 if you opt in to anonymous usage analytics. Songs in Trash do not count. • Up to 10 successful stem splits on this device. Cancelled or failed splits do not count. • Standard stem splitting on supported devices. High-quality models are part of the full version. Full version A one-time purchase removes the song and stem-split limits. • Unlimited songs • Unlimited successful stem splits • High-quality stem-splitting models you can download. These need iOS 26.4 or later and about 2 GB of available memory on a recent iPhone or iPad, or a Mac with Apple Silicon. Restore purchases is available in the app. Purchases are tied to your Apple ID.

No subscription. Separation is free with no limits, and the extras (slow playback, saved ranges, export) are a one-time purchase. DeeeMix splits a song into six parts — vocals, drums, bass, guitar, piano and other — so you can listen to each one on its own. Mute the vocals for a backing track, or solo the bass or guitar to work out a line by ear. Separation runs entirely on your iPhone. Your music is never uploaded, and the app works with no network at all. A five-minute song takes well under half a minute. WHAT YOU CAN DO - Split a song into 6 parts (vocals / drums / bass / guitar / piano / other) - Import from videos in the Photos app, or from MOV and MP4 files - Change the volume of each part, mute it, or solo it - Mute the vocals and play the song as a backing track - Drag across the waveform to loop just that range - Set the loop points while the music plays, with Set A and Set B - Skip back 5 seconds or forward 5 seconds - Change the key in semitones, up to 6 up or down: fit a backing track to your voice, or learn a song in an easier key - See the song's reference pitch (A=440, A=442 and so on) BUILT FOR LEARNING BY EAR Working out a song means playing the same few bars over and over, nudging the start a little each time. The range repeat and the 5-second skips are free, with no limits. PRO adds slow playback with the pitch unchanged: tap the speed button to step through 1x, 0.75x and 0.5x, or press and hold it to pick any speed from 0.25x to 1x in 0.05 steps. Passages that were too fast finally come apart. You can also name a range — "chorus", "the two bars before the solo" — and jump straight back to it when you open the app tomorrow. PRO (ONE-TIME PURCHASE) - Slow playback from 0.25x to 1x in 0.05 steps (press and hold the speed button), pitch unchanged - Name ranges and recall them any time, as many per song as you like - Export the parts you chose as a single file, in WAV or M4A - Share all the separated files at once - No ads Separation itself is free, with no limit on how many songs you separate. PLEASE KNOW - The piano part tends to keep traces of other instruments and does not separate as cleanly as guitar. Anything that is not vocals, drums, bass, guitar or piano — strings, wind instruments, synths — is grouped into "other". - Classical music does not work well. It cannot separate strings from woodwinds from brass, and most of the sound lands in "other". - Every part keeps a faint trace of the others, especially cymbals and long reverb tails. A backing track often has a ghost of the vocal in it. - The reference pitch is only measured within a semitone. A song tuned to 442 is detected, but a whole semitone of difference is not: a baroque recording at A=415 reads as roughly A=440. Audio only reveals the key that is sounding, never the key that was written. - You can shift the key up to 6 semitones either way; the further you go, the more muffled voices sound. Exports stay in the original key. - Songs can be up to 15 minutes. DRM-protected files from streaming services cannot be imported. - Please respect the copyright in the original recording when you use what comes out. REQUIREMENTS iPhone and iPad running iOS 18 or later. Available in English, Japanese, Chinese (Simplified and Traditional), Korean, German, French, Italian, Spanish, Turkish, Portuguese (Brazil) and Arabic.