Stem Split vs OnStem
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stem Split
This app uses AI to instantly separate any song into its individual instrumental and vocal components. It's designed for musicians to isolate specific parts for practice, remixing, or study, offering clean and precise stem extraction.
- AI vocal remover
- Music separator
- Instrument separator
- Audio splitter
- Karaoke version creator
- Stem export
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Split any song into clean, isolated stems in seconds. The AI vocal remover and music separator built for musicians. Stem is the fastest way to isolate vocals, remove vocals, split stems, and separate every instrument in any track — all from your iPhone or iPad, with no learning curve. WHAT YOU CAN DO Whether you need a vocal remover for practice, a music separator for remixing, or a stem splitter to study a track — Stem handles it all. Import any song and our AI instantly separates it into individual stems: vocals, drums, bass, guitar and piano. Clean, precise, fast. BUILT FOR MUSICIANS → Singers: use the voice isolation to study melody, pitch and phrasing → Guitarists: isolate the guitar track and learn every riff note by note → Bassists: use bass isolation to lock in with the original groove → Drummers: strip everything down to the drum stem and practice along → DJs & Producers: extract clean stems for remixes, edits and live sets VOCAL REMOVER & KARAOKE Remove vocals from any song to create your own karaoke version, back yourself with a full band, or practice without the distraction of the original singer. Our AI voice remover delivers cleaner vocal isolation than any other stem splitter on the market. STEM SPLITTER FEATURES → AI vocal remover — isolate or remove vocals instantly → Music separator — split any track into stems → Voice isolation — clean, precise, no bleed → Instrument separator — vocals, drums, bass, guitar, piano → Audio splitter — export each stem individually → Vocal isolation for singers and music practice → Remove vocals to make instrumental versions → Isolate vocals from any song in seconds HOW IT WORKS 1. Import any song — from your library, Files or streaming 2. Tap Split — our AI vocal remover goes to work 3. Stems are ready in seconds 4. Play, mute, solo or export any track WHY STEM Most apps give you muddy stems with bleed between tracks. Stem uses advanced AI trained for clean music separation — faster processing, simpler interface, cleaner results. If you've tried other vocal remover or stem splitter apps and been disappointed, try Stem. Built for musicians who take their craft seriously. Terms of use: https://musicaistudio.app/term-and-conditions/ Privacy Policy: https://musicaistudio.app/privacy-policy/
OnStem
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OnStem: AI Music Separation is an on-device AI-powered music separation tool that allows you to split audio tracks into individual stems with privacy and performance in mind. Powered by optimized local inference based on the open-source Spleeter project, OnStem performs all audio processing entirely on your device, without uploading files to any server. Key Features AI Music Separation Separate audio into 2 stems: Vocal and Accompaniment Separate audio into 5 stems: Vocal, Piano, Drums, Bass, and Accompaniment On-Device AI Processing All processing runs locally using on-device AI models No audio files are uploaded or shared Your content stays private on your device Optimized for Long Audio Custom optimizations allow processing of very long audio files Designed for stability and efficiency on mobile devices Multiple Export Formats Export separated tracks as MP3, WAV, M4A, or AAC Easily integrate with other audio tools and workflows Privacy First OnStem is a local-first application. All selected files are processed on your device only. No audio data or personal information is collected, stored, or uploaded. Subscriptions and Purchases OnStem offers both subscription plans and a one-time purchase option. Monthly subscription Quarterly subscription Annual subscription One-time lifetime purchase (where available) Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your Apple ID account settings. Prices may vary by region and are displayed before purchase. Legal Privacy Policy https://github.com/yangliu-1995/stemify-legal/blob/main/Privacy-Policy/EN.md Terms of Use https://github.com/yangliu-1995/stemify-legal/blob/main/Term-of-Use/EN.md OnStem is designed for creators who value privacy, performance, and on-device AI processing.
Screenshots
Verdict
The clearest difference is ads: Stem Split at none against OnStem's shown. Stem Split also leads on update cadence (every 8 days vs every 3 weeks) and chart position (#128 vs unranked). On price, in-app purchases and device support 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
Both are free to download. Stem Split sells 9 in-app purchases, starting at $6.99 per 7 days and OnStem sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Stem Split ships an update every 8 days, OnStem every 3 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.
| Parameter | Stem Split | OnStem |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.4K ratings) — better | — |
| Positive reviews | 31.7% of reviews | — |
| Number of ratings | 1.4K — better | — |
| Update frequency | Every 8 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #128 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 148 MB | 137 MB |
| Age rating | 4+ | 4+ |
| Developer | Music AI Studio | 阳 刘 |
In-app purchases
Stem Split
- Weekly subscription7 Days trial$6.997 Days
- Weekly Subscription$9.997 Days
- Year Subscription$19.991 Year
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- Monthly Subscription$19.991 Month
- Yearly subscription$49.991 Year
- Lifetime2 variants$19.99
- Lifetime Offer$44.99
- Lifetime 20% off$59.99
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- Lifetime Access$69.99
OnStem
- OnStem Pro – Monthly$0.991 Month
- OnStem Pro – Quarterly$2.393 Months
- OnStem Pro – Annual7 Days trial$8.991 Year
- OnStem Pro – Lifetime$9.99









