Comparison

Spectrolite vs Granula Synth

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

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

Granula Synth

Explore new soundscapes by manipulating granular audio. This app offers a library of presets, custom sound import, and extensive parameter adjustments for unique music creation. Save your settings and share your sonic experiments.

Highlights
  • Granular sound manipulation
  • Preset library
  • Custom sound import
  • Parameter adjustment
  • Save user settings
  • Share audio recordings
Features
Read full description

Push the boundaries of sound design. Granula Synth turns granular synthesis into a playground — grab tiny grains of audio, scatter them across the waveform, and shape them into pads, textures, and soundscapes no other synth can make. What's inside: - Curated preset library, crafted by sound designers - Deep grain controls — length, position, direction, pitch, and more - Powerful modulation matrix with dual LFOs and chaos generators - Built-in envelope, EQ, and FX chain - Import your own audio or record directly in the app - Save, organize, and share your presets - Export your ideas straight to your DAW Whether you're scoring film, building ambient textures, or just exploring new sonic territory, Granula Synth gives you granular control over every grain of sound. Privacy Policy: https://sites.google.com/view/castles-trip-privacy-policy Terms of Use: https://sites.google.com/view/granula-tos

Screenshots

Spectrolite4 screens
Granula Synth4 screens

Verdict

The call

The clearest difference is review sentiment: Spectrolite at 83% against Granula Synth's 20%. Spectrolite also leads on rating (4.8 vs 1.8) and update cadence (every 8 months vs every 25 months). Granula Synth's advantage is iOS requirement (12.0 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Spectrolite sells 1 one-off in-app purchase and Granula Synth sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Spectrolite holds the better App Store score, 4.8 against 1.8. That said, the two scores are not equally well evidenced: Spectrolite has 51 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 83% of Spectrolite's written reviews are positive against 20% of Granula Synth's.

UpkeepUpdate frequency

Spectrolite ships an update every 8 months, Granula Synth every 25 months. The most recent releases landed on September 23, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 5 level
Spectrolite versus Granula Synth: the parameters behind the verdict, then further details
ParameterSpectroliteGranula Synth
PriceFreeFree
Rating4.8 (51 ratings) — better1.8 (4 ratings)
Positive reviews83.3% of reviews — better20.0% of reviews
Number of ratings51 — better4
Update frequencyEvery 8 months — betterEvery 25 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size1 MB75 MB
Age rating4+4+
DeveloperWaxing WaveStanislav Duplinskiy

Customer experience

Spectrolite

All ratings51 ratings
Positive92.2%
Neutral5.9%
Negative2.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Granula Synth

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews5 reviews
Positive20.0%
Neutral20.0%
Negative60.0%

In-app purchases

1 purchases

Spectrolite

One-time1
  • Pro$4.99
3 purchases

Granula Synth

Subscriptions3
  • Access to app features3 Days trial$2.991 Month
  • Access to app features3 Days trial$7.493 Months
  • Access to app features3 Days trial$8.996 Months

Questions

Is Spectrolite free?
Spectrolite is free to download, with in-app purchases available.
Is Granula Synth free?
Granula Synth is free to download, with in-app purchases available.
Which has better reviews, Spectrolite or Granula Synth?
Spectrolite is rated higher. Spectrolite averages 4.8 out of 5 from 51 ratings, while Granula Synth averages 1.8 from 4 ratings.
Do Spectrolite or Granula Synth have ads?
Neither Spectrolite nor Granula Synth shows ads.
Which is updated more often, Spectrolite or Granula Synth?
Spectrolite ships an update every 8 months, and Granula Synth every 25 months. Most recently, Spectrolite was updated on September 23, 2026 and Granula Synth on October 2, 2026.

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