Comparison

Spectre vs D

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

Head to head
About

Spectre

This audio analysis utility provides real-time FFT and oscilloscope views for sound input. Customize waveform display, control sample rates, and zoom in for detailed analysis on iOS devices.

Highlights
  • FFT Analysis
  • Oscilloscope
  • Customizable Waveform
  • Linear & Logarithmic Forms
  • Pause/Play Controls
  • Zoom Functionality
Features
Read full description

Spectre is an iOS audio analysis utility designed to be useful and visually appealing, making use of retina displays. Feature Highlights: • FFT(Fast Fourier Transform) Analysis • Oscilloscope • Customizable Features: Wave Amplitude, Sample/Time Control, Line Width • Linear & Logarithmic Wave Forms • Pause/Play Controls • Zoom in/out on the Waveform! • Optimized for iPhone 3,4,5 and iOS 7 Currently this app takes input from standard input, and external mics. Cross-app sound analysis coming soon! Waveform recording also coming soon!

About

D

Read full description

D-Chorus is a BBD-style spatial chorus for iPhone and iPad. Use it as a standalone audio app or insert the included AUv3 effect in a compatible host such as GarageBand. Designed for width with minimal audible pitch wobble, D-Chorus combines very slow, shallow modulation with opposite-phase left and right movement. Its four modes range from subtle widening to a deep, expansive chorus that feels more like space than an obvious sweep. FEATURES - Four vintage spatial-chorus modes - Opposite-phase left and right modulation - Equal-power Depth dry/wet blending - Width control from mono to hyper-wide - Adjustable input gain from -12 to +12 dB - BBD-style delay and compander behavior - Optional 2x and 4x oversampling - Standalone iOS/iPadOS app - AUv3 audio effect for compatible hosts TRY BEFORE UNLOCKING The app provides 10 minutes of full-featured active use, shared between the standalone app and AUv3 extension. Demo time advances only while audio is actively processing. A one-time, non-consumable In-App Purchase unlocks unlimited use in both formats. Restore Purchases is available in the standalone app. D-Chorus is suited to synthesizers, guitars, vocals, electric piano, and pads that need stable dimension and stereo depth.

Screenshots

Spectre4 screens
D2 screens

Verdict

The call

The clearest difference is price: D at Free against Spectre's $0.99. Spectre's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 16.0). On ads 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

CostPrice · In-app purchases · Ads · Monetization

D is free to download; Spectre costs $0.99 up front. D sells 1 one-off in-app purchase. Spectre asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Spectre versus D: the parameters behind the verdict, then further details
ParameterSpectreD
Price$0.99Free — better
Rating3.0 (2 ratings) — better—
Positive reviews40.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 96 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size46 MB28 MB
Age rating4+4+
DeveloperMichael HandShoma Kondo

In-app purchases

None

Spectre

No in-app purchases

1 purchases

D

One-time1
  • D-Chorus Full Version$4.99

Questions

Is Spectre free?
Spectre costs $0.99, with no in-app purchases.
Is D free?
D is free to download, with in-app purchases available.
Do Spectre or D have ads?
Neither Spectre nor D shows ads.

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