iPulsaret vs SpectralLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iPulsaret
This app offers a real-time granular synthesis playground for iPad, generating diverse audio effects. It provides extensive control over grain parameters and includes a post-effects chain. Users can shape sounds, manipulate live input, and save presets.
- Real-time granular synthesis
- Live input manipulation
- Grain control and shaping
- Post FX chain (Echo, Reverb, Filters)
- Snapshot presets morphing pad
- AUv3 support
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iPulsaret is rated as a Killer App by Apps4iDevices. iPulsaret is a new real-time software capable of all time-domain varieties of granular synthesis. A genuine granular playground able to generate a wide range of usual and not so usual effects: Grainlet, Trainlet, FM, time/pitch shifting, time/pitch jittering, intricate textures, grain fountain/pulverizer, Live Input manipulation and many more. Control and shape grains, anytime, anywhere with iPulsaret for iPad. - Full AUv3 support - 32 Polyphony Voices - Granulation Sources: Wave, Trainlet, Sample, Live and Harmonic - Grain Envelope Deformation - Grain Glisson Sweep - Grainlet Linkage - ADSR Note Envelope - Snapshots Presets Morphing Pad - Sharing common audio files via iTunes, Dropbox AudioCopy etc... - Post FX chain: Echo, Ring Modulation, Lowpass Ladder and High Shelf filters, Reverb FDN and Dynamic Compressor/Expander - Capture Master Audio Output - Keyboard Musical Scales, up to 35 + User Defined Scale - etc...
SpectralLab
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SpectralLab is a hands-on toolkit for spectral harmony in the Grisey/Murail tradition. Explore the harmonic series as a playable drone, record or import real sound and decompose it into its partials with on-device FFT analysis, then sculpt spectral chords with breathing LFOs and a Hammond-style drawbar interface — sounded either through a pure additive synth or a 16-band EQ run through your own recording. Chain chords into step sequences, export MIDI with microtonal pitch bend preserved, and study the technique through interactive references to the composers who pioneered it — tap "Try it" on Stockhausen, Grisey, Scelsi, or throat-singing tradition and hear the idea instantly, not just read about it. Whether you're a composition student studying spectral music or a sound designer who wants to hear harmonic ratios instead of just reading about them, SpectralLab turns the math of the overtone series into something you can see, hear, and play. • Harmonic series visualizer with true-pitch playback against a drone • Record/import audio, analyzed via on-device FFT — no data ever leaves your device • Drawbar chord builder: True Harmonic vs. Equal Temperament A/B toggle • Per-partial LFOs, pencil-draw mode, and a live harmonograph-style visualization • Step sequencer for chord progressions, synth or real-audio EQ playback • Standard MIDI export with pitch bend preserving true tuning • Theory tab: interactive references to Stockhausen, Grisey, Murail, Scelsi, Harvey, Partch, and more
Screenshots
Verdict
The clearest difference is price: SpectralLab at $4.99 against iPulsaret's $9.99. 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
iPulsaret costs $9.99 and SpectralLab $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | iPulsaret | SpectralLab |
|---|---|---|
| Price | $9.99 | $4.99 — better |
| Rating | 4.8 (31 ratings) — better | — |
| Positive reviews | 79.6% of reviews | — |
| Number of ratings | 31 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 32 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | apeSoft | Martin Adler |
In-app purchases
iPulsaret
No in-app purchases
SpectralLab
No in-app purchases









