Acaville vs STEM
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!
STEM
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FUSE VOID STEM-X is the ultimate professional AI audio separation tool, built for producers, DJs, vocalists, and cover artists who demand perfection. Powered by advanced dual-AI hybrid engines, STEM-X extracts studio-quality stems directly on your device. Whether you need a pristine vocal acapella for a remix, a high-fidelity instrumental for karaoke, or an isolated drum groove, STEM-X delivers with industry-leading speed. FEATURES: • State-of-the-Art AI Engines: Choose between Vocal Priority (2-Stem) or Full Band Extraction (5-Stem). • Studio In Your Pocket: Process your audio files securely with lightning speed. • Pro Audio Export: Extract and export uncompressed, high-fidelity stems to your DAW or files. • Fair Quota System: Only pay for the seconds you extract. No wasted credits on full songs when you only need a loop! • Minimalist Studio Interface: Designed with a dark, premium aesthetic that feels like high-end studio hardware. Unleash your creativity, practice your covers, and remix the world with FUSE VOID STEM-X. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Acaville at none against STEM's 3. STEM's advantage is update cadence (every 9 days vs every 37 months) and iOS requirement (16.4 vs 26.0). 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. STEM sells 3 in-app purchases, starting at $7.99 per month. Acaville asks for nothing beyond the download.
Acaville ships an update every 37 months, STEM every 9 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Acaville | STEM |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 37 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 16 MB | 3 MB |
| Age rating | 9+ | 4+ |
| Developer | Chord Innovations | CEM OZAN DUZENCI |
In-app purchases
Acaville
No in-app purchases
STEM
- Starter Monthly$7.991 Month
- Basic Plan$12.991 Month
- Pro Plan$24.991 Month
