Comparison

Harmonic Explorer vs SignatureEQ

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Harmonic Explorer

Features
Read full description

Harmonic Explorer is a unique musical instrument built for sonic discovery. Tap into a grid of harmonic tones, pan across four octaves, and sculpt sound with layered controls that invite both casual play and deep experimentation. From soft, violin-like purity to rich metallic textures and spatial choruses, Harmonic Explorer offers a wide expressive range. Adjust harmonic gains, spread tones into lush chords, or reduce everything down to a single precise frequency. Key Features: - Intuitive multi-touch interface with four full octaves - Portrait and Landscape mode fully supported - Harmonic tone generation with per-voice amplitude control - Dynamic chord spread control — from single tones to shimmering triads - Built-in reverb with selectable acoustic spaces (from Room to Cathedral) - Randomize and Reset for playful experimentation or clean slates - Route Picker to send audio directly to Bluetooth or external devices - Designed for real-time performance and sound exploration - Fully offline — no ads, no tracking, no accounts, no interruptions Whether you're a composer looking for new inspiration, a student learning sound design, or just curious about the nature of harmonic structure, Harmonic Explorer offers a fresh way to hear and shape music. Sculpt tones. Discover timbres. Explore harmonics.

About

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.

Highlights
  • 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 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

Harmonic Explorer4 screens
SignatureEQ3 screens

Verdict

The call

The clearest difference is price: Harmonic Explorer at $0.99 against SignatureEQ's $5.99. 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

CostPrice · In-app purchases · Ads · Monetization

Harmonic Explorer costs $0.99 and SignatureEQ $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
Harmonic Explorer versus SignatureEQ: the parameters behind the verdict, then further details
ParameterHarmonic ExplorerSignatureEQ
Price$0.99 — better$5.99
Rating—4.5 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 7 months—
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size2 MB26 MB
Age rating4+4+
DeveloperPhilippe ZayAntonio Sorin TASU

In-app purchases

None

Harmonic Explorer

No in-app purchases

None

SignatureEQ

No in-app purchases

Questions

Is Harmonic Explorer free?
Harmonic Explorer costs $0.99, with no in-app purchases.
Is SignatureEQ free?
SignatureEQ costs $5.99, with no in-app purchases.
Do Harmonic Explorer or SignatureEQ have ads?
Neither Harmonic Explorer nor SignatureEQ shows ads.

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