Comparison

StemLab vs StemScriber

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

StemLab

This app uses AI to isolate up to six musical stems from any song directly on your device. It offers a multi-track mixer with studio effects, looping, recording, and export capabilities for musicians and producers. No subscription is required for core functionality.

Highlights
  • AI song stem separation
  • Multi-track mixer
  • Studio effects chain
  • A/B looping
  • On-device processing
  • Stem export
Features
Read full description

Split any song into 6 isolated stems on your iPhone — vocals, drums, bass, guitar, piano, and other. Nothing uploads. Nothing waits in a cloud queue. No subscription required. StemLab runs the AI separation entirely on your device, then opens a full multi-track mixer with studio FX, A/B looping, recording, and stem export. Built for musicians, producers, and singers who want clean, isolated stems without monthly fees. SEPARATE Imports MP3, WAV, FLAC, M4A, even MP4 and MOV video — up to 500 MB per file. Pick a 4-stem or 6-stem AI model to extract vocals, drums, bass, guitar, piano, and more in a single pass. Works as a vocal remover, instrumental maker, acapella extractor, karaoke track maker, and backing track creator. Everything happens on your iPhone — your music never leaves the device. MIX A real multi-track mixer, not just a separator. Per-stem volume, solo, mute. Set A/B loop points to slow down a solo, transcribe a phrase, or rehearse the chorus on repeat. Scrub the timeline with centisecond precision and watch live waveforms render in real time. CHOP & SAMPLE Pull a clean drum break, lift a vocal chop, or grab a bass line for a lofi beat. Isolate any stem, loop the exact bars with A/B points, and export it as a WAV sample ready to flip in your sampler or DAW. MAKE IT YOURS Record your own vocal over the instrumental, lay down a guitar take on top of the AI bass, or import any audio file as a custom layer. Build mashups, track covers, write demos, replace a stem entirely — all inside one session, on your phone. ADD EFFECTS Shape each stem with a 6-effect chain: Pitch Shift, Reverb, Delay, Compressor, 4-band EQ, and Saturation. Run Bus FX on the master mix. Bypass any effect without removing it. Save your settings as a reusable preset and load them on the next song with one tap. EXPORT Send out individual stems or a new stereo mixdown in WAV, FLAC, or M4A — now baked with your FX chain, so your Pitch Shift, Reverb, Delay, Compressor, EQ, and Saturation settings carry straight into the export. Pick your sample rate (44.1 / 48 / 96 kHz) and bit depth (16 / 24 / 32-bit). Drop the result straight into your DAW, sampler, looper, or any other app. Built for guitarists isolating solos, bassists transcribing lines, beatmakers pulling clean acapellas, DJs making edits, music teachers building practice tracks, worship leaders covering for missing players, and singers laying covers over original songs. ---------- StemLab Pro unlocks unlimited separations, individual stem export, the full FX chain, and unlimited presets. Available as a one-time lifetime purchase — buy once, keep what you bought. Yearly subscription option also available. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms: https://lauperlabs.com/stemlab/terms Privacy: https://lauperlabs.com/stemlab/privacy

About

StemScriber

This music app isolates individual instruments from songs, allowing users to slow down playback without altering pitch. It also provides chord charts and a built-in tuner to aid in learning and practicing music.

Highlights
  • Isolate any instrument
  • Slow down tempo without pitch change
  • Generate chord charts
  • Built-in tuner and fretboard
  • Practice music by ear
Features
Read full description

Learn any song the way you actually practice it. StemScriber pulls a song apart into its separate instruments so you can hear exactly what you're trying to play — then slows it down so you can keep up. What it does: • Isolate any instrument — mute the vocals and band, solo just the guitar (or bass, drums, piano, vocals). Finally hear the part that was buried in the mix. • Slow it down — drop the tempo without the pitch turning to chipmunks. Sit with a fast riff at half speed until it's under your fingers. • See the chords — a chord chart is generated for the song so you can follow the changes while you play. • Tuner + fretboard — built-in, free, no sign-up. Made for the way musicians really learn — by ear, slowed down, one part at a time. Whether you're working up a cover, learning a solo, or figuring out a bass line, StemScriber gets you from hearing it to playing it faster. Use it with music you own or have the rights to. Chord detection is a strong starting point, not a perfect transcription — it gets you playing fast, and you can trust your ears for the rest. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://stemscriber.com/privacy.html

Screenshots

StemLab4 screens
StemScriber4 screens

Verdict

The call

The clearest difference is rating: StemScriber at 5.0 against StemLab's 4.5. StemScriber also leads on review sentiment (100% vs 67%) and iOS requirement (15.0 vs 26.2). StemLab's advantage is ratings volume (28 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. StemLab sells 2 in-app purchases, starting at $4.99 per year and StemScriber sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

StemScriber holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: StemLab has 28 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of StemLab's written reviews are positive against 100% of StemScriber's.

UpkeepUpdate frequency

StemLab ships an update every 11 days, StemScriber weekly. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
StemLab versus StemScriber: the parameters behind the verdict, then further details
ParameterStemLabStemScriber
PriceFreeFree
Rating4.5 (28 ratings)5.0 (2 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings28 — better2
Update frequencyEvery 11 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS26.215.0 — better
Further details — not scored
Size350 MB121 MB
Age rating4+4+
DeveloperLauper LabsJeffrey Kozelski

Customer experience

StemLab

All ratings28 ratings
Positive89.3%
Neutral3.6%
Negative7.1%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

StemScriber

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

StemLab

Subscriptions1
  • StemLab Pro Yearly$4.991 Year
One-time1
  • StemLab Pro Lifetime$16.99
3 purchases

StemScriber

Subscriptions2
  • Pro Monthly$9.991 Month
  • Pro Annual$89.991 Year
One-time1
  • StemScriber Lifetime$199.99

Questions

Is StemLab free?
StemLab is free to download, with in-app purchases available.
Is StemScriber free?
StemScriber is free to download, with in-app purchases available.
Which has better reviews, StemLab or StemScriber?
StemScriber is rated higher. StemLab averages 4.5 out of 5 from 28 ratings, while StemScriber averages 5.0 from 2 ratings.
Do StemLab or StemScriber have ads?
Neither StemLab nor StemScriber shows ads.
Which is updated more often, StemLab or StemScriber?
StemLab ships an update every 11 days, and StemScriber weekly. Most recently, StemLab was updated on October 24, 2026 and StemScriber on October 24, 2026.

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