Z vs Stackwax
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Z
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Z-Metronome is a simple app for Apple Watch, iPhone and iPad that provides a pulse indication between 40 and 200 beats per minute (BPM) using 3 independent ways of being indicated: 1) Sound, 2) Sight, 3) Feel .
Stackwax
Instantly identify music playing around you, detect its BPM and key, and add it to your digital library. Organize your music by key or BPM, plan DJ sets, and discover vinyl versions through integrated Discogs listings.
- Real-time track identification
- BPM and key detection
- Camelot code generation
- Digital music library
- DJ set planning
- Discogs vinyl integration
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Stackwax is the shelf for DJs. You hear a track. You need the BPM, the key, the Camelot code. You need it in your library before the night is over. You want to buy it on vinyl. StackWax does all of it in one tap. Hold your phone up. StackWax identifies the track, detects the BPM and key in real time, gives you the Camelot code, and shelves it directly into your library. Then the library works for you. Sort by BPM, by key, by Camelot. Drag tracks into playing order and sketch your next set before you step behind the decks. When you find something you want on vinyl, tap through to the Discogs listing and buy it without leaving the app. Connect your existing Discogs collection and import your records. Everything in one place, organised the way DJs think. Built for DJs who take music seriously. Works in clubs, record shops, at home, anywhere music is playing. Free to start. No credit card required. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Z at none against Stackwax's 3. Stackwax's advantage is iOS requirement (15.0 vs 26.2). On price, ads 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. Stackwax sells 3 in-app purchases, starting at $4.99 per month. Z asks for nothing beyond the download.
| Parameter | Z | Stackwax |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | — | Every 5 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 26.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Zane Kuchera | Martin Allais |
In-app purchases
Z
No in-app purchases
Stackwax
- Stackwax Pro Monthly$4.991 Month
- Stackwax Pro Annual$34.991 Year
- Stackwax Pro Lifetime$49.99









