Comparison

SGA Eclipse vs Spectrum AUv3 FFT Visualizer

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

Head to head
About

SGA Eclipse

This app offers authentic analog amplifier sounds for digital audio workstations. It simulates six different analog circuits, including vacuum tubes and transistors, to provide a range of saturation and distortion effects. It can be used as a standalone effect or in conjunction with other plugins to create full amp simulations.

Highlights
  • Authentic analog sound simulation
  • Six distinct analog circuits
  • Vacuum tube and transistor emulation
  • Variable bias and feedback controls
  • Automatic 4x oversampling
  • AUv3 effect plugin
Read full description

Eclipse brings the authentic sound of six analog push-pull circuits to your DAW. Each circuit derives its unique sonic character from a different active element: - 6L6 beam tetrode – Power tube commonly found in US audio power amplifiers in class AB push-pull configuration. - EL34 pentode – Power tube found, operating in class AB push-pull configuration, in audio power amplifiers and many European guitar amplifiers. - EL84 pentode – Power tube found in many European audio equipment, gainer than the usual pentode, operated in push-pull class AB configuration for maximum power output. - pair of complementary N- and P- MOS transistors found in CD4007 - 2N5457 and BF244B JFET transistors in mu-amplifier/SRPP/totem pole amplifier configuration found in some boutique guitar gear, including Shattered Glass Audio. To achieve the most authentic analog sound, each circuit is simulated in real time using Shattered Glass Audio’s state-of-the-art circuit simulator. Eclipse can be used to deliver anything from subtle saturation to ripping distortion, as well as in a tandem with a preamp simulation plug-in, such as our own Phoenix 2, and a speaker cabinet emulation plug-in to create a full amp. Key features: - Authentic analog sound through real-time high-performance circuit simulation. - Three vacuum tube push-pull configurations (fronted by a long-tailed phase splitter using 12AX7 triodes) featuring 6L6, EL34, and EL84 power tubes. - A complementary N- and P- MOS transistors in push-pull configuration. - Two mu-amplifiers featuring JFET transistors 2N5457 and BF244B. - Variable bias and feedback for each circuit for different saturation “flavors”. - AGC and parallel processing. - Automatic 4x oversampling. Eclipse is primarily an AUv3 effect. To use Eclipse as a plug-in, you will need an AUv3 compatible host such as Garageband, AUM, etc. Eclipse application is there to provide a user manual and a chance to use Eclipse with the microphone input. You can try Eclipse on a macOS or Windows based, machine by downloading the demo version of the plug-in (VST3, AUv2, AAX) from our website https://www.shatteredglassaudio.com and running it in a DAW of your choice. Sonically speaking there are no differences between the iOS and macOS/Windows versions of Eclipse.

About

Spectrum AUv3 FFT Visualizer

Read full description

Turn sound into stunning visuals with Spectrum, an AUv3-compatible real-time spectrum analyzer for audio signals. Effortlessly monitor 29 specific frequencies from 10 Hz to 20 kHz with precision, powered by Fast Fourier Transform (FFT) data. Spectrum’s sleek graphics feature vertical markers, filled paths, and a smooth gradient background for an immersive visual experience. Enjoy accurate frequency placement with logarithmic scaling, and interact seamlessly using touch to highlight specific frequencies. Designed for performance, it dynamically adjusts to real-time data, transforms decibels, and ensures smooth, optimized rendering for flawless updates.

Screenshots

SGA Eclipse2 screens
Spectrum AUv3 FFT Visualizer2 screens

Verdict

The call

The clearest difference is price: Spectrum AUv3 FFT Visualizer at $0.99 against SGA Eclipse's $24.99. On update cadence, ads, in-app purchases 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

SGA Eclipse costs $24.99 and Spectrum AUv3 FFT Visualizer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SGA Eclipse ships an update every 6 months, Spectrum AUv3 FFT Visualizer every 12 months. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.

Scorecard1 real difference · 8 level
SGA Eclipse versus Spectrum AUv3 FFT Visualizer: the parameters behind the verdict, then further details
ParameterSGA EclipseSpectrum AUv3 FFT Visualizer
Price$24.99$0.99 — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 months — betterEvery 12 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.815.0 — better
Further details — not scored
Size49 MB10 MB
Age rating4+4+
DeveloperShattered Glass AudioDiscoDSP LLC

In-app purchases

None

SGA Eclipse

No in-app purchases

None

Spectrum AUv3 FFT Visualizer

No in-app purchases

Questions

Is SGA Eclipse free?
SGA Eclipse costs $24.99, with no in-app purchases.
Is Spectrum AUv3 FFT Visualizer free?
Spectrum AUv3 FFT Visualizer costs $0.99, with no in-app purchases.
Do SGA Eclipse or Spectrum AUv3 FFT Visualizer have ads?
Neither SGA Eclipse nor Spectrum AUv3 FFT Visualizer shows ads.
Which is updated more often, SGA Eclipse or Spectrum AUv3 FFT Visualizer?
SGA Eclipse ships an update every 6 months, and Spectrum AUv3 FFT Visualizer every 12 months. Most recently, SGA Eclipse was updated on September 9, 2026 and Spectrum AUv3 FFT Visualizer on September 20, 2026.

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