Comparison

iPulsaret vs Poseidon Synth

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

Head to head
About

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.

Highlights
  • Real-time granular synthesis
  • Live input manipulation
  • Grain control and shaping
  • Post FX chain (Echo, Reverb, Filters)
  • Snapshot presets morphing pad
  • AUv3 support
Features
Read full description

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...

About

Poseidon Synth

Explore vast sonic landscapes with this advanced synthesizer. It combines analog synthesis with spectral modeling for unique sound design, offering powerful filters, spatialization, and a vast library of presets and sound models.

Highlights
  • Spectral model oscillator
  • F-Domain Filter with variable slope
  • Spatializer for stereo movement
  • Extensive sound browser
  • Arpeggiator with programmable sequences
  • Built-in effects suite
Read full description

Poseidon Synth - The Ocean of Sound For all creatures in the ocean of sound - Sonic textures from other worlds, Analog signature sounds,  Cut-through-the-mix leads and silkily smooth pads: Poseidon sets a new standard for sound design and ease of use. All of this was made possible through a combination of the familiar, conceptual simplicity of the analog synthesis and our frequency domain based Spectral modelling synthesis technology. Spectral model oscillator Select a basic sound model from over hundred delivered with Poseidon. The basic sound model determines the sound characteristic you want to start: taking a artificial model like “Sawtooth” gives you analog style sounds. Use complex models from analyzed samples for earth shaking ambients and evolving pads. Model parameters High level controls allow for changing the spectral shape, the harmonicity and balances the level of residual noise and spectral amount of the oscillator model. F-Domain Filter The newly developed F-Domain filter allow for drastic changes in the resulting sound spectrum. Five filter types including lowpass/highpass characteristic can be used to shape the sound. They have the usual controls like cutoff but also very unusual ones like a variable slope ranging from 0 dB to 72 dB / Octave and independent controls for resonance and bandwidth! This kind of controls are only possible in the context of our F-Domain synthesis technology. This results in an extremely clear filter sound with breathtaking fast modulation possibilities.

The filter type “Inverse” interprets the sound model as a "Source" and a resonant body "Filter". The cutoff parameter shifts the filterbase - this is the equivalent to making the instrument body smaller or bigger. Spatializer This simple control gives your sound a distinctive moving distribution in the stereo panorama. Every atomic sound particle has it´s own path through the space ! Sound browser The sound browser in Poseidon gives you a fast selection of sounds based on category and timbre. Spectral modelling synthesis • Harmonic/Inharmonic/Noise sound models • 512 oscillators per voice • 300 Sound models / 600 factory presets Unique sound control • Pitch modulation / Harmonicity control • Time machine • Timbre control • Frequency Domain Filter • Spatializer Arpeggiator • Uses programmable sequences with up to 32 steps.  • Can trigger single notes and chords. • Unique randomiser generates Arpeggios with 100% usability. • 32 Arpeggios included, unlimited user arpeggios possible. • For each step you can program tie, accent, transposition and note order Effects • Chorus • Phaser • Flanger • Distortion (aliasing free!) • Equalizer • Echo/Delay • Reverb Global • Audiobus 3 compatible (Input slot) • Audio Unit AUv3 • Inter-app audio compatible (Instrument/Generator) • CoreMIDI / Virtual MIDI / Tempo Sync / MIDI Learn • Audio recorder with Metronome. • Audio pasteboard / File sharing. • Ableton Link support • Bluetooth audio A2DP

Screenshots

iPulsaret4 screens

Verdict

The call

The clearest difference is rating: iPulsaret at 4.8 against Poseidon Synth's 4.0. iPulsaret also leads on update cadence (every 3 weeks vs every 4 months) and review sentiment (78% vs 59%). Poseidon Synth's advantage is price ($7.99 vs $9.99) and iOS requirement (12.0 vs 15.6). On ratings volume, 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

iPulsaret costs $9.99 and Poseidon Synth $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

iPulsaret holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 31 and 33 respectively. Written reviews point the same way: 78% of iPulsaret's written reviews are positive against 59% of Poseidon Synth's.

UpkeepUpdate frequency

iPulsaret ships an update every 3 weeks, Poseidon Synth every 4 months. The most recent releases landed on September 21, 2026 and August 4, 2026 respectively.

Scorecard6 real differences · 4 level
iPulsaret versus Poseidon Synth: the parameters behind the verdict, then further details
ParameteriPulsaretPoseidon Synth
Price$9.99$7.99 — better
Rating4.8 (31 ratings) — better4.0 (33 ratings)
Positive reviews78.3% of reviews — better58.8% of reviews
Number of ratings3133 — better
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.612.0 — better
Further details — not scored
Size30 MB328 MB
Age rating4+4+
DeveloperapeSoftHarry Gohs

Customer experience

iPulsaret

All ratings31 ratings
Positive96.8%
Neutral0.0%
Negative3.2%
Written reviews46 reviews
Positive78.3%
Neutral4.3%
Negative17.4%

Poseidon Synth

All ratings33 ratings
Positive72.7%
Neutral12.1%
Negative15.2%
Written reviews51 reviews
Positive58.8%
Neutral15.7%
Negative25.5%

In-app purchases

None

iPulsaret

No in-app purchases

None

Poseidon Synth

No in-app purchases

Questions

Is iPulsaret free?
iPulsaret costs $9.99, with no in-app purchases.
Is Poseidon Synth free?
Poseidon Synth costs $7.99, with no in-app purchases.
Which has better reviews, iPulsaret or Poseidon Synth?
iPulsaret is rated higher. iPulsaret averages 4.8 out of 5 from 31 ratings, while Poseidon Synth averages 4.0 from 33 ratings.
Do iPulsaret or Poseidon Synth have ads?
Neither iPulsaret nor Poseidon Synth shows ads.
Which is updated more often, iPulsaret or Poseidon Synth?
iPulsaret ships an update every 3 weeks, and Poseidon Synth every 4 months. Most recently, iPulsaret was updated on September 21, 2026 and Poseidon Synth on August 4, 2026.

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