ab EQ X vs SL Echo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ab EQ X
This application offers a parametric equalizer that operates with Ambisonics technology. It allows independent equalization of three dimensional poles (LEFT, RIGHT, FRONT) with five bands each, supporting various filter types and a DRY/WET mix control.
- Ambisonics-based equalization
- 3 independent dimensional poles (LEFT, RIGHT, FRONT)
- 5 bands per pole
- Multiple filter types (HP, LP, Shelf, Bell, Notch)
- DRY/WET MIX control
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An Equaliser that works in Ambisonics under the hood. Three different dimensional poles can be equalised independently (LEFT, RIGHT, FRONT) with unique results! - 5 Bands per dimensional poles. - Each band can be High Pass, Low Pass, High Shelf, Low Shelf, Notch, or Bell. - DRY/WET MIX control
SL Echo
This audio effect app provides animated delay and space for musical decisions on iPad. Easily adjust time, feedback, and tone for various repeat styles, while maintaining a clear dry signal with stereo width and ducking. It supports AUv3 integration with popular music hosts.
- Animated delay and space effects
- Adjustable time and feedback
- Tone shaping controls
- Stereo width and ducking
- AUv3 support
- Standalone preview mode
- Factory and user presets
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SL Echo is a focused AUv3 delay effect designed for fast musical decisions on iPad. Move from a close vocal pocket to wide, evolving repeats without navigating complex pages. • Time and feedback for slapback or long trails • Tone shaping for darker or brighter repeats • Stereo width and ducking for a clear dry signal • Factory presets and local user presets • AUv3 support for compatible iPad music hosts Works as a standalone preview app and as an AUv3 effect in GarageBand, AUM, Cubasis, BeatMaker 3 and other compatible hosts.
Screenshots
Verdict
The clearest difference is update cadence: SL Echo at weekly against ab EQ X's every 6 months. ab EQ X's advantage is price ($5.99 vs $6.99). On rating, ratings volume, 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
ab EQ X costs $5.99 and SL Echo $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for ab EQ X against 5.0 for SL Echo. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
ab EQ X ships an update every 6 months, SL Echo weekly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | ab EQ X | SL Echo |
|---|---|---|
| Price | $5.99 — better | $6.99 |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 6 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15 | 15.0 |
| Further details — not scored | ||
| Size | 12 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Alejandro Cabrera Zuniga | VIACHESLAV ZHILTSOV |
Customer experience
ab EQ X
SL Echo
In-app purchases
ab EQ X
No in-app purchases
SL Echo
No in-app purchases
