Modules vs Spectrolite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Modules
Create dynamic visual effects synchronized with your music library or microphone input. Select songs from your device to bring your audio to life with unique visual experiences.
- Music visualizer
- Microphone input
- Local music library integration
- Customizable visual effects
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This app generates some visual effects from your music library or microphone. - Usage 1. Tap the music button. 2. Select your songs from music library. These songs should be on your device.
Spectrolite
This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.
- Real-time spectrogram visualization
- Constant-Q, linear, and mel frequency scales
- Full human hearing frequency range
- Intuitive touch panning and zooming
- Adjustable gain, Q, and other parameters
- Pro version: grids, scales, spectrum view, tap-to-measure
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Spectrolite visualizes sound as spectrograms in real time. Spectrolite supports constant-Q spectrograms, which use a logarithmic frequency scale for a display where musical notes are evenly spaced. Spectrograms based on linear and mel frequency scales are also supported. The display covers the full frequency range of human hearing. Intuitive touch panning and zooming lets you dive in and explore the spectrograms in detail. Gain, Q, and other parameters can be adjusted in real time and instantly apply to the display of past signals as well as future ones. The Pro in-app purchase adds grids and scales for time, frequency, and amplitude, as well as a spectrum view and a tap-to-measure function. This expands Spectrolite into an audio measurement tool that you can use to measure frequencies, musical pitches, amplitudes, and durations.
Screenshots
Verdict
The clearest difference is rating: Spectrolite at 4.8 against Modules's 4.0. Spectrolite also leads on review sentiment (83% vs 45%) and ratings volume (51 vs 17). Modules's advantage is update cadence (monthly vs every 8 months) and iOS requirement (9.0 vs 15.6). On price, 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
Both are free to download. Modules sells 1 one-off in-app purchase and Spectrolite sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Spectrolite holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 17 and 51 respectively. Written reviews point the same way: 45% of Modules's written reviews are positive against 83% of Spectrolite's.
Modules ships an update monthly, Spectrolite every 8 months. The most recent releases landed on September 2, 2026 and September 23, 2026 respectively.
| Parameter | Modules | Spectrolite |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (17 ratings) | 4.8 (51 ratings) — better |
| Positive reviews | 45.5% of reviews | 83.3% of reviews — better |
| Number of ratings | 17 | 51 — better |
| Update frequency | Monthly — better | Every 8 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 76 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Y. MOCHIDUKI | Waxing Wave |
Customer experience
Modules
Spectrolite
In-app purchases
Modules
- Remove ads$1.99
Spectrolite
- Pro$4.99
Questions
Is Modules free?
Is Spectrolite free?
Which has better reviews, Modules or Spectrolite?
Do Modules or Spectrolite have ads?
Which is updated more often, Modules or Spectrolite?
Other comparisons
