ab EQ X vs SL Prism
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 Prism
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SL Prism is a precise, fast, touch-ready equalizer for corrective mixing and creative sound shaping. Create a band directly on the spectrum. Move it to set frequency and gain, then refine Q, filter shape, channel routing, dynamics, threshold, attack, and release. Every enabled response stays visible while you work. Use dynamic EQ to control frequencies only when they become a problem. Enable spectral processing for more focused reactions. Switch between Zero Latency, Natural Phase, and Linear Phase modes to match recording, mixing, and phase-sensitive work. Features: • 24 independent EQ bands • Nine filter types • Dynamic and five-slice spectral processing • Stereo, Left, Right, Mid, and Side routing • External sidechain support in compatible hosts • Realtime input, output, masking, and combined analyzers • EQ Match and resonance suggestions • A/B comparison, Undo, Redo, Auto Gain, Pan, Phase Invert, and Mix • Factory effects including Underwater, Telephone, Airy Vocal, Warm Vintage, and Lo-Fi Radio • AUv3 plugin and standalone app • Scalable interface for iPad Audio is processed locally on the device. Core EQ processing does not upload project audio.
Screenshots
Verdict
The clearest difference is price: ab EQ X at $5.99 against SL Prism's $19.99. SL Prism's advantage is update cadence (every 10 days vs every 6 months). On ads, in-app purchases, device support 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
ab EQ X costs $5.99 and SL Prism $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ab EQ X ships an update every 6 months, SL Prism every 10 days. Both last shipped on October 29, 2026.
| Parameter | ab EQ X | SL Prism |
|---|---|---|
| Price | $5.99 — better | $19.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | 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 |
In-app purchases
ab EQ X
No in-app purchases
SL Prism
No in-app purchases









