VariSpeed vs SignatureEQ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VariSpeed
This app simulates a classic tape echo machine, replicating the functionality of a specific vintage hardware unit. It allows for variable delay times by altering the speed of the tape mechanism.
- Classic tape echo simulation
- Variable delay time
- AUv3 plugin compatibility
- Replicates vintage hardware
Read full descriptionHide full description
Please note: this is an AUv3 plugin that can be used with compatible host Apps. GSi VariSpeed is a simulation of the WEM Copicat IC-400 Belt Drive VariSpeed model, the first tape echo machine made by WEM with a DC capstan motor capable of changing speed, thus varying the delay time. GSi VariSpeed replicates the hardware instrument “as is” with all its pros and cons, without any additional feature. This can be considered as the second chapter of a tribute to the genius of Mr. Charlie Watkins that GSi began back in 2008 with the release of the freeware "WatKat", which was a simulation of the "Custom Copicat".
SignatureEQ
This professional 6-band parametric equalizer offers real-time sound shaping for musicians and producers. Its interactive interface allows precise adjustments to frequency, gain, and Q using intuitive gestures. Designed for performance, it integrates seamlessly with AUv3 compatible hosts on iPhone and iPad.
- 6 fully parametric bands
- Real-time frequency response display
- Intuitive gesture controls
- Supports 7 filter types per band
- AUv3 integration
- Preset and automation support
- Zero audio thread allocation
Read full descriptionHide full description
Signature EQ is a professional 6-band parametric equalizer designed as an AUv3 audio unit extension for iPhone and iPad. Load it in AU EngineCore or any AUv3 compatible host and shape your sound with precision, in the studio or on stage. Real-Time Interactive Interface The entire interface is a live frequency response display. Drag nodes to adjust frequency and gain, pinch to control Q, double-tap to reset. No sliders, no menus, just the curve, responding to your touch in real time. Six Parametric Bands - Low Shelf at 80 Hz for bass body and warmth - F1 at 250 Hz for low-mid control - F2 at 1 kHz for mid presence and clarity - F3 at 3.5 kHz for upper-mid attack and definition - F4 at 8 kHz for presence and air - High Shelf at 12 kHz for brilliance Every band supports 7 filter types: High Pass, Low Shelf, Peak, Notch, Band Pass, High Shelf, and Low Pass. Any band can be any filter type at any time. Built for Performance Zero allocation on the audio thread. Zero locks. No artifacts, no interruptions regardless of buffer size or host load. Full AUv3 Integration Presets save and recall instantly. Scene changes in the host reflect immediately in the interface. Features - 6 fully parametric bands - Real-time frequency response display with band nodes - Drag, pinch, and double-tap gestures - Full preset and automation support - Double-precision DSP - zero audio thread allocation - Universal: iPhone and iPad
Screenshots
Verdict
The clearest difference is price: SignatureEQ at $5.99 against VariSpeed's $11.99. SignatureEQ also leads on device support (3 vs 1). VariSpeed's advantage is rating (4.9 vs 4.5) and ratings volume (8 vs 2). On review sentiment, ads, in-app purchases and monetization model 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
VariSpeed costs $11.99 and SignatureEQ $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VariSpeed holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
| Parameter | VariSpeed | SignatureEQ |
|---|---|---|
| Price | $11.99 | $5.99 — better |
| Rating | 4.9 (8 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 — better | 2 |
| Update frequency | Every 41 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 11 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Genuine Soundware | Antonio Sorin TASU |
Customer experience
VariSpeed
SignatureEQ
In-app purchases
VariSpeed
No in-app purchases
SignatureEQ
No in-app purchases
Questions
Is VariSpeed free?
Is SignatureEQ free?
Which has better reviews, VariSpeed or SignatureEQ?
Do VariSpeed or SignatureEQ have ads?
Other comparisons















