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Stems VS StemX App

Compare Stems VS StemX App and see what are their differences

Stems

The easiest way to isolate vocals from any song.

Rating
0 reviews
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StemX App

Free AI vocal remover, BPM finder and key finder

Rating
0 reviews
Pricing
Freemium $4.99 / Monthly (Monthly)
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Which is more popular?

Music popularity
88% vs 12%
alternatives listed
94 vs 16

Base details

Website, pricing, platforms and company facts side by side.

Stems
StemX App
Website stems.app stemx.app
Pricing —
Freemium $4.99 / Monthly (Monthly) Official pricing
Platforms —
Web REST API
Company — 2026
Listed in
Windows Mac Music AI Tech +2
Audio & Music Music Music Tools Audio Editing Vocal Remover AI Music AI Music Generator AI +5

About Stems and StemX App

In their own words, as submitted to SaaSHub.

Stems
StemX App

No description of Stems yet.

Free AI vocal remover, BPM finder and key finder

Read more about StemX App

Features and specs

What each product offers, as listed by its team.

Stems 5 features
StemX App 12 features
  • User-Friendly Interface
    Stems offers an intuitive and easy-to-navigate interface, making it accessible for users with varying levels of technical expertise.
  • Efficient Stem Extraction
    The platform provides high-quality audio stem extraction, allowing users to separate and manipulate different components of a track with precision.
  • Multi-Platform Support
    Stems is available on multiple operating systems, ensuring that users can access its features regardless of their device type.
  • Integration Capabilities
    The app integrates well with other music production software, facilitating smooth workflow for producers and audio engineers.
  • Collaborative Features
    Stems includes features that enhance collaboration, allowing multiple users to work on a project simultaneously and share insights in real-time.

Possible disadvantages

  • Subscription Cost
    The cost of a subscription to use Stems might be high for some users, particularly hobbyists or those on a tight budget.
  • Internet Dependency
    Some features of Stems require a stable internet connection, which could be a limitation for users with unreliable connectivity.
  • Learning Curve
    Despite its user-friendly design, some advanced features may have a steep learning curve for beginners, requiring additional time to master.
  • Occasional Bugs
    As with any software, users may occasionally encounter bugs, which can disrupt the user experience and workflow.
  • Limited Free Features
    The free version of Stems offers limited functionality, which may not be sufficient for users who require more advanced features without investing in a paid plan.
  • Vocal remover
    Splits any song into vocals and instrumental stems with AI
  • Free preview
    Hear the first 60 seconds of both stems, no account needed
  • Full-song splits
    Sign in to separate the whole song; 30 free minutes a month
  • Output format
    320 kbps MP3, one file per stem
  • Supported uploads
    MP3, WAV, FLAC, M4A, OGG, Opus; up to 10 minutes and 100 MB
  • BPM finder
    Free, whole-song tempo detection with half and double time shown
  • Key finder
    Free key detection; says when it isn't confident instead of guessing
  • Published accuracy
    BPM within 4% on 81.9% of 998 test tracks; key right ~80% of the time on the ~44% of songs it answers
  • Commercially licensed models
    UVR MDX-Net (separation), Beat This! (tempo), S-KEY (key)
  • Developer API
    Separation, key/BPM detection and pitch shifting over a REST API
  • Automatic deletion
    Anonymous previews deleted after 1 hour; full splits after 3–30 days by plan
  • Stems offered
    Two: vocals and instrumental (no drums/bass split)

Videos

Walkthroughs and reviews on video.

Stems 3 videos + Add
StemX App 0 videos + Add

MTB Stems: Top 5 Picks for 2019

More videos

  • - Surprisingly Smooth Stems | UHMWPE Stem Review
  • - XTRAX STEMS REVIEW // Separate Songs into Vocals, Drums, and Bass

No StemX App videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Stems
StemX App
88% 88%
Music
12% 12%
84% 84%
Audio & Music
16% 16%
0% 0%
Music Tools
100% 100%
81% 81%
AI
19% 19%

Questions & Answers

As answered by people managing Stems and StemX App.

What makes your product unique?

StemX App's answer:

Every model StemX runs is licensed for commercial use, and we publish how accurate each one is. The vocal remover uses UVR's MDX-Net models; our own benchmark measured 11.43 dB SI-SDR on vocals (7-second excerpts of 12 MUSDB18 tracks, a small benchmark, and we say so). The BPM finder is within 4% of the true tempo on 81.9% of 998 test tracks, and the key finder names a key only when it's confident: it answers on about 44% of songs and is right about 80% of the time when it does. If a result isn't reliable, StemX says so rather than guessing.

Why should a person choose your product over its competitors?

StemX App's answer:

You can try it before you commit: upload a song and hear a free 60-second preview of the vocals and instrumental without creating an account. The BPM and key finders are free, analyse the whole song rather than a clip, and show half and double time. Because the models are licensed for commercial use, developers and businesses can build on the API without licensing questions. Uploads are deleted automatically, after 1 hour for anonymous previews and 3–30 days for full splits depending on plan.

How would you describe the primary audience of your product?

StemX App's answer:

Singers and karaoke fans who want an instrumental of a song, producers and DJs who need acapellas, instrumentals or a track's tempo and key for remixes and sets, musicians making practice and backing tracks, and developers who want to add vocal separation or key/BPM detection to their own apps through an API.

What's the story behind your product?

StemX App's answer:

We set out to build a stem separator we could stand behind: one that only uses models whose licences allow commercial use, and that states its accuracy openly instead of making marketing claims. That's why StemX offers two stems (vocals and instrumental), not four. We couldn't find commercially licensed weights for the models that split further, so we ship what we can legally offer and publish how well it performs.

Which are the primary technologies used for building your product?

StemX App's answer:

Python and FastAPI for the API, PyTorch and ONNX Runtime for inference on NVIDIA GPUs, UVR MDX-Net for separation, Beat This! (CPJKU) for tempo and S-KEY (Deezer) for key detection, Next.js for the website, PostgreSQL, and Google Cloud (Cloud Run and GPU VMs). Payments are handled by Paddle.

User comments

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