Stem Split vs Ultimate Tuner Pro
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/
Ultimate Tuner Pro
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The Universal app for Precise Tuning, designed for Musicians & Audio enthusiasts. With Ultimate Tuner Pro you can tune any musical instrument with ease, offering a wide range of tunings and special features tailored to meet your needs. Features: State of the art Frequency Detection algorithm & Audio DSP Processing Extended Detection Range covers full spectrum of a Grand Piano A0-C8 (22-4698Hz) Adjustable Base Freq. (415-450Hz) with precise Hertz/Centesimal control Semitonal Transposition (±12 st) Cents Deviation Display with normal, or Double Zero precision (±0.01c) Selectable Reference Pitch Tuning Fork tone gen. plays selected Base Freq./Ref Pitch Fully Featured Metronome -Tuning Modes Besides of Chromatic mode, Ultimate Tuner Pro includes dedicated: Guitar, Lap Steel, Bass, Ukulele, Banjo, Mandolin, Violin (& Hardingfele), Viola, Viol, Cello and Double Bass tuning modes. And also Flat notation for tunings that include them (in all Notation Languages), as well as Banjo drone-string notation and tuning. With a total of +850 Tunings & Scordaturas, Ultimate Tuner Pro offers one of the most comprehensive collections available. Instrument Tunings: Guitar x156 - Standard, Drop, Open, 7/8-string, Baritone Lap Steel x28 Bass x60 - Drop, Open, 4 to 8-String Ukulele x24 - Std, Tenor, Baritone, Slack Key & Bass Banjo x20 - Std, Open, Minor & Tenor Mandolin x30 Violin x29 - Std, Cross, Gee-Dad, Celtic, Hardingfele & Scordaturas Viola x23 - Std, Cross & Scord. Viol x19 Cello x15 - Std, Open & Scord. Double Bass x26 - Std, Solo & Scord. -World Instruments Also includes a complete Collection of +450 World Instruments tunings from around the Globe. -16 Notation Languages: English - C D E F G A B Deutsche - C D E F G A H Latin - Do Re Mi Fa Sol La Si Ελληνικά - Ντο Ρε Μι Φα Σολ Λα Σι Русский - До Ре Ми Фа Соль Ля Си Byzantine - Ni Pa Vu Ga Di Ke Zo Hindi - Sa Re Ga Ma Pa Dha Ni हिन्दी - सा रे ग म प ध नि Japanese - Ha Ni Ho He To I Ro 日本語 - ハ ニ ホ ヘ ト イ ロ 日本語-現代 - ド レ ミ ファ ソ ラ シ 中文 - 黄钟 太簇 姑洗 中吕 林钟 南吕 应钟 한국어 - 다 레 미 파 솔 라 시 ไทย - โด เร มี ฟา ซอล ลา ที עברית - דו רה מי פה סול לה סי لعربية - دو ري مي فا صول لا سي -Graph Displays FFT Harmonic Graph Displays with 10x Harmonics Adjustable FFT Window Size (256 - 2048) Micro-Tonal Deviation Graph for Precise micro-tuning, featuring clear 25c and 50c deviation lines. Strobe Tuner with 5 Rows of gradation in alternating scroll direction; for enhanced Precision and Dynamic effect. Spectrum Analyzer displays Audio signal over reference Piano Roll; while Piano Roll shows tuning Range for the selected Tuning/mode, and Highlights last detected Note. Dedicated Temperament Gradation Needle shows exact deviation of tempered notes. Advanced Processing: Adjustable Sample Rate: 11-22KHz Noise Gate with RMS detection Adjustable FFT Graph Window - 256 - 2048 spl HP Filter: 10 - 250Hz (12 to 96 dB/oct) LP Filter: 500 - 20kHz (12 to 96 dB/oct) DC Bias Filter Temperament Adjustment: 3 Base Temperaments - 12T Equal Temperament, Just, Pythagorean 5 Guitar Temperament Sweetenings: James Taylor, Thidell Formula 1™, Die Wohltemperierte Gitarre™, Meantone Blues™ 28 Historic Temperaments -Metronome: Fully featured Metronome with Tempo Trainer, and unique Metro Lane Display; includes all Note Subdivisions and a Global collection of rhythmic Patterns to explore (Balkan, Greek, Turkish, Arab, Hindu, African, Latin American..) Metro Clock: Signals the current Number of Beats and their Type, highlighting First/Strong, Secondary and Normal Beats in different color. Metro Lane: Shows the Beats of the selected Pattern advancing over a Time Line Tempo Range: 12-350 BPM Time Signature dial with up to 16 Beats, and x/1 x/2 x/4 x/8 x/16 bases All possible Note Figure subdivisions for any selected Time Sig. Tempo Trainer with selectable BPM Increase, and cycle Repetitions Bell and 9 different Metronome Sound types. -Packed with 56 vibrant Color Themes to customize the tuner, adding a Personal touch.
Screenshots
Verdict
The clearest difference is ads: Stem Split at none against Ultimate Tuner Pro's shown. Stem Split also leads on update cadence (every 8 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement 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 11 in-app purchases, starting at $6.99 per 7 days and Ultimate Tuner Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Stem Split ships an update every 8 days, Ultimate Tuner Pro every 3 weeks. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.
| Parameter | Stem Split | Ultimate Tuner Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.4K ratings) — better | — |
| Positive reviews | 30.8% 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 | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15 — better |
| Further details — not scored | ||
| Size | 148 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Music AI Studio | Ernest Soler |
In-app purchases
Stem Split
- Weekly subscription7 Days trial$6.997 Days
- Weekly Subscription$6.997 Days
- Weekly Subscription$9.997 Days
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- Year Subscription$19.991 Year
- Monthly Subscription$19.991 Month
- Yearly subscription$39.991 Year
- 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
Ultimate Tuner Pro
- Full Features Unlock$9.99









