AC vs Big Stuff Harmonic Distortion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AC
Control your BOSS AC-22LX Acoustic Guitar Amplifier with this dedicated editor. Connect via Bluetooth® to adjust amplifier functions and settings directly from your iPhone or iPad.
- Bluetooth connectivity
- Amplifier function control
- Dedicated editor
- iPhone/iPad compatible
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Dedicated editor for controlling functions on the BOSS AC-22LX Acoustic Guitar Amplifier. -This app communicates with AC-22LX over Bluetooth®. * The AC-22LX must have a BOSS Bluetooth® Audio MIDI Dual Adaptor installed for device connection. *To connect your iPhone/iPad via Bluetooth®, follow the instructions on the Connection screen that's displayed when the app is launched.
Big Stuff Harmonic Distortion
This app emulates the sound of a legendary vintage distortion pedal, offering a violin-like sustaining tone. It functions as a standalone application, an AudioUnit v3 effect, or an Inter-App Audio effect for versatile music production.
- Vintage distortion emulation
- Sustaining violin-like tone
- Standalone app functionality
- AudioUnit v3 effect
- Inter-App Audio effect
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Nembrini Audio Big Stuff is modeled on a Electro Harmonix Big Muff* The Big Stuff will give you a sweet violin-like sustaining sound. It's the same legendary created by Jimi Hendrix. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect Legal Disclaimer: *All product names are trademarks of their respective owners, which are in no way associated or affiliated with Nembrini Audio SRL. These product names, descriptions and images are provided for the sole purpose of identifying the specific products that were studied during Nembrini Audio’s sound design process.
Screenshots
Verdict
The clearest difference is review sentiment: Big Stuff Harmonic Distortion at 100% against AC's 0%. AC's advantage is monetization model (free vs ad-supported) and iOS requirement (11.0 vs 15). 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. Neither carries in-app purchases, so what you see is what you pay.
AC ships an update every 29 months, Big Stuff Harmonic Distortion every 40 months. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.
| Parameter | AC | Big Stuff Harmonic Distortion |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (12 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 12 — better |
| Update frequency | Every 29 months — better | Every 40 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15 |
| Further details — not scored | ||
| Size | 14 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Roland Corporation | Nembrini Audio |
Customer experience
AC
Big Stuff Harmonic Distortion
In-app purchases
AC
No in-app purchases
Big Stuff Harmonic Distortion
No in-app purchases
Questions
Is AC free?
Is Big Stuff Harmonic Distortion free?
Do AC or Big Stuff Harmonic Distortion have ads?
Which is updated more often, AC or Big Stuff Harmonic Distortion?
Other comparisons
