Scaler EQ vs Wind Crusher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scaler EQ
This application offers a unique approach to audio equalization by intelligently adjusting frequencies based on the detected key and scale of your music. It provides both musical enhancements and traditional EQ controls for detailed sound shaping.
- In-key EQ with harmonic band types
- Automatic key and scale detection
- Familiar EQ controls with added color
- Magic Shelf for enhanced low and high frequencies
- Mastering-grade limiters and meters
- Dynamic band control and sidechain input
- Standalone and AUv3 host compatibility
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Following on from the award-winning Scaler music theory plugin, Scaler EQ offers a remarkable new way to EQ with musicality and colour. By detecting the key and scale of your audio and enhancing only note frequencies in key with your song, and reducing only note frequencies that aren’t, Scaler EQ can provide a new spin on working with cuts and boosts, increasing the tonality behind your music and providing new harmonic avenues. And for when you just want a regular, fully-featured, modern EQ, Scaler EQ has you covered with its familiar workflow, large choice of band types, mid/side operation, dynamic bands, peak limiters, and stereo enhancement. You can easily apply classic mixing and mastering techniques used by professionals, with an extra optional musical edge. NOTE: We have designed Scaler EQ for iPad. It works on iPhone too with identical functionality but relies more on the two finger tap to zoom function. -The World’s First In-Key EQ -Simple Key Detection -Musician- and Producer-Friendly Band Types -The Magic Shelf -Mastering Grade Limiters and Meters -All the Mod EQ Cons Main Features: Patent pending musical EQ with harmonic band types that boost in-key frequencies and cut out-of-key frequencies Familiar EQ controls translate to a regular workflow – but one that adds more colour Choice of band types for traditional boost/cut EQ or harmonic EQ Magic Shelf bands deliver punchier low end and smoother highs Simple key detection identifies the key and scale of your audio and sets the EQ’s target scale Scale Switching allows for scale and key changes in your track Dial in dynamics for any band (Threshold, Ratio, Attack, Release) Control any shape dynamically via sidechain input Add or remove scale notes for a specific colour (eg, four-note chords or just fifths) Input And Output Peak Limiters Adjustable input and output levels with peak and RMS metering Create unique EQ responses by combining magic shelves, harmonic filters and cuts Each band can be set to work on stereo, mid or side channels Enhance stereo width and collapse low frequencies to mono Minimum phase, zero latency EQ Standalone and compatible with AUv3 host apps such as Logic Pro, GarageBand, Auria, AUM, and Cubasis. Closable Panels and iOS zoom functions What can Scaler EQ be used for? Music Production: Ideal for musicians and producers looking to enhance the musicality of their tracks by ensuring all instruments are in harmony with the chosen scale. Audio Editing: Simplify EQ processes by targeting and cleaning up frequency bands to remove audio that doesn’t belong and enhance audio naturally present with the chosen scale. Audio Engineering: Dynamically soothe audio by suppressing in-harmonic frequencies or expanding harmonic frequencies using dynamic compression and expansion. Mastering: Place on your master channel to broaden your stereo width, focus your bass, increase loudness, and enhance your mix. Sound Designers: Easily create playable instruments from any recorded sound source using the Sound Design presets and musical resonator FX. DJing: DJs can use it to ensure that the tracks they mix are in harmony by detecting the key and scale whilst balancing the mix of each track. -"Scaler EQ is plugin that offers an innovative way to equalise with musicality and colour. It is a plugin that deserves to be tried by anyone." DJ Mag Italia -"Scaler EQ is a groundbreaking advancement in the world of audio engineering. The harmonic EQ technology is a game-changer." Song Mix Master -"Scaler EQ can make subtle harmonic changes or be a hugely creative plugin, but either way it makes your mixes sound better." Computer Music July 2024 -"Scaler EQ delivers harmonic processing we didn’t know we needed, but once heard, we might just apply it to everything." Music Radar -"Scaler EQ is a valuable tool for musicians, producers and audio professionals. It just might be the only EQ you need going forward’ 24bit Electronic Music Production
Wind Crusher
Transform clean audio into something more dynamic with this AUv3 effect. Add air, fizz, bite, and digital texture to vocals, pads, guitars, and snares. Explore subtle quantisation effects or push it for aggressive digital distortion.
- Adds air, fizz, and bite
- Digital texture and movement
- Adjustable Bit Depth
- Swoosh for movement
- Texture Tone control
- Air EQ for high frequencies
- Mix control for wet/dry blend
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Turn clean sounds into something more alive. Wind Crusher is an AUv3 effect for adding air, fizz, bite and digital movement to pads and fragile vocals in particular, but also electric guitars and snares can benefit. It starts where many bitcrushers stop. Instead of immediately destroying your sound with extreme lo-fi distortion, Wind Crusher lets you explore the subtle texture created by quantisation — adding digital residue while keeping the original character intact. Use the large AIR control to mix in and out the sound appropriately, then fine-tune the result with: • Bit Depth for controlling the digital resolution • Swoosh for adding movement and texture • Texture Tone for shaping the character • Air EQ for opening up the high frequencies • Mix for blending the effect with the original Use it subtly to add breath and presence. Push it harder for brittle edges, fizz, aggressive breakup and obvious digital destruction. Wind Crusher is designed to be quick to use, but deep enough to experiment with. A small set of presets helps you explore different characters without needing to understand every DSP parameter. Some of the effects in Wind Crusher rely on sounds within the 350-2000 Hz range and so you may get more audible results if your input sound contains frequencies in that range. Made for musicians, producers and sound designers who want to add a little extra to their clean sounds. Wind Crusher is built as an AUv3 Audio Unit for use with compatible music apps and hosts on Apple platforms.
Screenshots
Verdict
The clearest difference is review sentiment: Wind Crusher at 100% against Scaler EQ's 50%. Wind Crusher also leads on price ($0.99 vs $12.99) and update cadence (every 3 days vs every 2 months). Scaler EQ's advantage is ratings volume (27 vs 3) and iOS requirement (15.0 vs 17.0). On ads, in-app purchases, monetization model 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
Scaler EQ costs $12.99 and Wind Crusher $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Wind Crusher holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Scaler EQ has 27 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Scaler EQ's written reviews are positive against 100% of Wind Crusher's.
Scaler EQ ships an update every 2 months, Wind Crusher every 3 days. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.
| Parameter | Scaler EQ | Wind Crusher |
|---|---|---|
| Price | $12.99 | $0.99 — better |
| Rating | 4.6 (27 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 27 — better | 3 |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 27 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Scaler Music | ADBC INNOVATION PTY LTD |
Customer experience
Scaler EQ
Wind Crusher
In-app purchases
Scaler EQ
No in-app purchases
Wind Crusher
No in-app purchases









