Acaville vs Stemzel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Acaville
Stream contemporary a cappella music, interviews, and tips 24/7. Access podcasts and read blog content related to the a cappella community. This app is a dedicated hub for all things a cappella.
- 24/7 a cappella music streaming
- Listen to a cappella podcasts
- Read a cappella blog content
- Interviews and tips
- Dedicated a cappella community hub
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From The Bobs to The Bubs, from Pentatonix to Divisi, Acaville is your home for a cappella music, interviews, events, and information. Use the app to stream Acaville, listen to podcasts, review the blog, and more. We're always on, streaming 24 hours a day!
Stemzel
This app separates any song into vocals, drums, bass, and other instruments directly on your device. It offers on-device AI processing for privacy, with no cloud uploads or subscriptions required. Mix, mute, solo, and export individual stems or the full mix.
- On-device AI stem separation
- Import audio from files or URL
- Record and split audio instantly
- Mute or solo individual stems
- Built-in waveform scrubber
- Export stems and full mix
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Stemzel splits any song into four stems — vocals, drums, bass, and other instruments — entirely on your iPhone. No cloud uploads. No subscription. No account required. IMPORT YOUR AUDIO • File — pick from Files, iCloud Drive, or anywhere on your device • URL — paste a direct link to an MP3, M4A, or WAV file • Record — capture audio with your microphone and split it instantly MIX AND EXPORT • Mute or solo any stem to hear exactly what you want • Play back your mix with a built-in waveform scrubber • Export individual stems or your full mix to the Files app PRIVATE BY DESIGN Every split runs on your device using on-device AI. Your music never leaves your iPhone. No servers, no tracking, no ads. ONE-TIME UNLOCK Pay once, use Stemzel forever. Unlimited splits and downloads — no monthly fees, ever. PERFECT FOR • Musicians learning parts by ear • DJs and producers isolating elements • Karaoke and acapella practice • Remixing and sampling workflows • Anyone who wants stems without uploading to the cloud Stemzel is built for speed and privacy. Import a track, wait a moment while it separates, then mute the vocals, solo the drums, or export everything — all from your pocket. Questions or feedback? Visit stemzel.com/support
Screenshots
Verdict
The clearest difference is rating: Acaville at 5.0 against Stemzel's 4.5. Acaville also leads on in-app purchases (none vs 4) and device support (3 vs 1). On price, ratings volume, ads 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. Stemzel sells 4 one-off in-app purchases. Acaville asks for nothing beyond the download.
Acaville holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
| Parameter | Acaville | Stemzel |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 37 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 16 MB | 290 MB |
| Age rating | 9+ | 4+ |
| Developer | Chord Innovations | Mahija Kottapalli |
In-app purchases
Acaville
No in-app purchases
Stemzel
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$4.99
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- Stemzel Unlock$7.99








