StemScriber vs iStem
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Isolate any instrument
- Slow down tempo without pitch change
- Generate chord charts
- Built-in tuner and fretboard
- Practice music by ear
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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
iStem
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iStem lets you split songs into drums, bass, vocals, and other instruments, remix them, and practice with tempo/pitch/metronome controls. Features: - Split in instrument/vocal tracks - Detect beats - Count-in function - Speed up or slow down songs - Change pitch - Set up loops for detailed practice - No login or user data required - All computation is done on the device - Export to file
Screenshots
Verdict
StemScriber and iStem are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. StemScriber sells 3 in-app purchases, starting at $9.99 per month and iStem sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | StemScriber | iStem |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 116 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeffrey Kozelski | Jan Maes |
In-app purchases
StemScriber
- Pro Monthly$9.991 Month
- Pro Annual$89.991 Year
- StemScriber Lifetime$199.99
iStem
- iStem Activation$4.99









