AO vs Stackwax
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AO
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AO-ringo Player is a music player designed specifically for continuously playing albums from your Apple Music library. [Key Features] ・Continuous Album Playback: When the last track of an album ends, the app automatically transitions to the next album and continues playing. ・Seamless Transitions: Preloading minimizes wait time when switching between albums. ・Offline Mode: Automatically detects tracks saved on your device and keeps playing without interruption even without a network connection. ・Library Integration: Works directly with your Apple Music library and playlists. ・Favorites: Add artists and playlists to your favorites and quickly access them sorted by play count. ・Custom Themes: Choose from Auto (follows OS settings), fixed Light/Dark, or custom color themes from the appearance settings (※ options other than Auto require an in-app purchase).
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 iOS requirement: Stackwax at 15.0 against AO's 17.6. On price, update cadence, ads and in-app purchases 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. AO sells 3 one-off in-app purchases and Stackwax sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
AO ships an update weekly, Stackwax every 5 days. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.
| Parameter | AO | Stackwax |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Weekly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Fujishima Tomokazu | Martin Allais |
In-app purchases
AO
- Coffee Support$0.99
- Premium Coffee Support$1.99
- Coffee & Cake Support$3.99
Stackwax
- Stackwax Pro Monthly$4.991 Month
- Stackwax Pro Annual$34.991 Year
- Stackwax Pro Lifetime$49.99









