Comparison

AddStation vs sinusedo

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

Head to head
About

AddStation

Explore new sonic territories with this advanced additive synthesis tool. Create complex timbres by combining thousands of sine waves and unique morph sequencing. Integrate seamlessly with iOS production environments and enjoy a suite of built-in effects.

Highlights
  • Fractal additive synthesis
  • Sound morphing
  • Over 170 sound presets
  • AUv3 AudioUnit integration
  • Built-in effects suite
  • Audiobus 3 and Ableton Link support
Features
Read full description

The next generation of additive synthesis Additive synthesis is a sound synthesis technique that creates timbre by adding sine waves together. The timbre of musical instruments can be considered to consist of multiple harmonic or inharmonic partials or overtones. VirSyn already has a remarkable track record of products ( CUBE, POSEIDON ) trying to make this virtually unlimited synthesis method manageable for creative sound designers and musicians. AddStation is the next step forward giving you a tool to explore completely new sonic territory. The massive amount of sine waves in AddStation - thousands per voice - together with unique morph sequencing blocks blur the frontiers between analog and digital sonic realms. And all this integrated in all relevant iOS production environments especially the emerging AUv3 AudioUnit standard. Synthesis • Fractal additive synthesis • over 170 sound presets • Four parts with 8 Additive Sequence Blocks • Sound morphing • up to 512 partials per voice with independent AD envelopes • harmonic/inharmonic spectra • Ringmodulation • arbitrary filter function and noise spectra • four independent analog style Arpeggiators Effects • Chorus • Phaser • Flanger • Overdrive • Parametric EQ • Echo/Delay • Reverb Global • AUv3 for Host integration • Audiobus 3 compatible (Input slot) with state saving • Support for Ableton Link. • Inter-app audio compatible (Instrument/Generator) • CoreMIDI / Virtual MIDI • Audio recorder.

About

sinusedo

This app is a versatile sinewave synthesizer available as a standalone application and AUv3 plugin. It offers two independent keyboards with extensive control over note parameters, polyphony, and modulation, supporting MIDI input for external control.

Highlights
  • Dual independent keyboards
  • Microtonal tuning
  • Ring modulator per voice
  • Adjustable polyphony (up to 144 voices)
  • MIDI input support
  • Note deviation display (cents)
  • Glide and velocity control
Features
Read full description

'sinusedo' is a sinewave synthesizer in standalone and AUv3 formats. It features two independent keyboards with: • 4 – 72 keys (voices, steps) per octave, each with its own ring modulator • maximum polyphony equal to the number of voices; max polyphony is 144 voices • 1 – 4 octave range, covering the frequency range of about 8 – 4200 Hz • display with note number (from C), note name, frequency (in Hz), and deviation from 12-TET (in cents) • two sections per keyboard: upper for non-sustained notes, gliding, and velocity; lower for sustained notes and modulation rate • mute button to stop/start all sound • delete/panic button to erase all notes • glide button for smooth sweeps across keyboard frequency range • modulation on/off button • slider to set initial velocity and modulation levels • slider to change velocity and modulation rates for all notes on the keyboard proportionally and to show current velocity and mod rate levels • button to toggle keyboard visibility. sinusedo supports MIDI input from external sources to control each keyboard independently. Supported devices: iPad, iPhone

Screenshots

AddStation4 screens
sinusedo3 screens

Verdict

The call

The clearest difference is price: sinusedo at $3.99 against AddStation's $8.99. sinusedo also leads on review sentiment (100% vs 82%). AddStation's advantage is ratings volume (42 vs 7) and iOS requirement (12.0 vs 15.0). On rating, update cadence, ads and in-app purchases 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

AddStation costs $8.99 and sinusedo $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

sinusedo holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: AddStation has 42 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 82% of AddStation's written reviews are positive against 100% of sinusedo's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 21, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
AddStation versus sinusedo: the parameters behind the verdict, then further details
ParameterAddStationsinusedo
Price$8.99$3.99 — better
Rating4.5 (42 ratings)4.7 (7 ratings) — better
Positive reviews82.1% of reviews100.0% of reviews — better
Number of ratings42 — better7
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.0 — better15.0
Further details — not scored
Size133 MB11 MB
Age rating4+4+
DeveloperHarry GohsAlexey Nadzharov

Customer experience

AddStation

All ratings43 ratings
Positive88.4%
Neutral4.7%
Negative7.0%
Written reviews39 reviews
Positive82.1%
Neutral2.6%
Negative15.4%

sinusedo

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AddStation

No in-app purchases

None

sinusedo

No in-app purchases

Questions

Is AddStation free?
AddStation costs $8.99, with no in-app purchases.
Is sinusedo free?
sinusedo costs $3.99, with no in-app purchases.
Which has better reviews, AddStation or sinusedo?
sinusedo is rated higher. AddStation averages 4.5 out of 5 from 42 ratings, while sinusedo averages 4.7 from 7 ratings.
Do AddStation or sinusedo have ads?
Neither AddStation nor sinusedo shows ads.
Which is updated more often, AddStation or sinusedo?
AddStation ships an update weekly, and sinusedo weekly. Most recently, AddStation was updated on October 21, 2026 and sinusedo on October 12, 2026.

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