Comparison

Harmonix vs AddStation

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

Head to head
About

Harmonix

This app provides an intelligent controller for the Elektron Digitone FM Synth, offering features like sound type programming, parameter randomization, and pattern generation. It allows for manual or queued pattern launching and includes customizable keyboard filters for note selection and parameter control.

Highlights
  • Intelligent Sound Types
  • Parameter Randomize/Morph/Reset
  • Sound Design Functions & Macros
  • Mixer Control
  • Intelligent Pattern Generation
  • Customizable Keyboard Filters
Read full description

Harmonix is an intelligent controller for Elektron's Digitone FM Synth! - Intelligent Sound Types (Pad, Strings, Drone, Hybrid, Keys, Classic, Dub, Mono, Organ, Bass, Square, Noise, Kick, Perc, Chaos, Custom) lets you program Sounds with minimal effort - Randomize / Morph / Reset parameters (Tracks, Pages, MFX, Mixer, Mods) - Sound design functions and macros - Mixer to control Track Levels, Mute, Pan, Drive & FX Sends - Randomize Modulations - Intelligent Pattern Generation - Snapshots for install recall of Sounds - Manually launch Patterns or Queue up to 16 Patterns (Song Mode) - Save / Load Presets - Customizable Keyboard filters notes to the selected Key / Scale, and controls various parameters with vertical finger movement *OS 1.30 or higher is required

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.

Screenshots

AddStation4 screens

Verdict

The call

The clearest difference is rating: Harmonix at 5.0 against AddStation's 4.5. Harmonix also leads on review sentiment (100% vs 82%). AddStation's advantage is price ($8.99 vs $14.99) and ratings volume (42 vs 5). On update cadence, 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

Harmonix costs $14.99 and AddStation $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Harmonix holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: AddStation has 42 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of Harmonix's written reviews are positive against 82% of AddStation's.

UpkeepUpdate frequency

Harmonix ships an update every 2 weeks, AddStation weekly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Harmonix versus AddStation: the parameters behind the verdict, then further details
ParameterHarmonixAddStation
Price$14.99$8.99 — better
Rating5.0 (5 ratings) — better4.5 (42 ratings)
Positive reviews100.0% of reviews — better82.1% of reviews
Number of ratings542 — better
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.012.0
Further details — not scored
Size13 MB133 MB
Age rating4+4+
DeveloperMarcos KohlerHarry Gohs

Customer experience

Harmonix

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

AddStation

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

In-app purchases

None

Harmonix

No in-app purchases

None

AddStation

No in-app purchases

Questions

Is Harmonix free?
Harmonix costs $14.99, with no in-app purchases.
Is AddStation free?
AddStation costs $8.99, with no in-app purchases.
Which has better reviews, Harmonix or AddStation?
Harmonix is rated higher. Harmonix averages 5.0 out of 5 from 5 ratings, while AddStation averages 4.5 from 42 ratings.
Do Harmonix or AddStation have ads?
Neither Harmonix nor AddStation shows ads.
Which is updated more often, Harmonix or AddStation?
Harmonix ships an update every 2 weeks, and AddStation weekly. Most recently, Harmonix was updated on October 20, 2026 and AddStation on October 24, 2026.

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