# PolyPhase vs AddStation

The clearest difference is price: AddStation at $8.99 against PolyPhase's $19.99. AddStation also leads on update cadence (weekly vs every 3 weeks) and device support (3 vs 1). PolyPhase's advantage is iOS requirement (10.0 vs 12.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

PolyPhase costs $19.99 and AddStation $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for PolyPhase against 4.5 for AddStation. Both are backed by a comparable volume of ratings — 26 and 43 respectively. Written reviews are what separate them: 76% of PolyPhase's written reviews are positive against 82% of AddStation's.

PolyPhase ships an update every 3 weeks, AddStation weekly. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PolyPhase | AddStation |
| --- | --- | --- |
| Price | $19.99 | **$8.99** |
| Rating | **[4.6 (26 ratings)](https://appshunter.io/ios/app/polyphase/id1440617668/reviews)** | [4.5 (43 ratings)](https://appshunter.io/ios/app/addstation/id1500919657/reviews) |
| Number of ratings | 26 | **43** |
| Positive reviews | 76.2% of reviews | **82.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | Paid |
| Size | 35 MB | 133 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Marcos Kohler](https://appshunter.io/developer/1024379665) | [Harry Gohs](https://appshunter.io/developer/382428644) |

## What reviewers say

### PolyPhase

[App page](https://appshunter.io/ios/app/polyphase/id1440617668)

Create complex, interwoven melodies and rhythms with a generative sequencer. Control note generation, randomize sequences, and integrate with external MIDI hardware or the included wavetable synthesizer. Save and recall your creations with presets and snapshots.

**Highlights:** Generative melody creation with phase offsets, 8 independent sequencers with customizable properties, Draw own notes or use intelligent randomization, Wavetable synthesizer with FX, MIDI output and input support, Global Key/Scale filtering and Chord Masks, Save/Load presets and Snapshots

**In-app purchases:** none


### AddStation

[App page](https://appshunter.io/ios/app/addstation/id1500919657)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PolyPhase free?

PolyPhase costs $19.99, with no in-app purchases.

### Is AddStation free?

AddStation costs $8.99, with no in-app purchases.

### Which has better reviews, PolyPhase or AddStation?

PolyPhase is rated higher. PolyPhase averages 4.6 out of 5 from 26 ratings, while AddStation averages 4.5 from 43 ratings.

### Do PolyPhase or AddStation have ads?

Neither PolyPhase nor AddStation shows ads.

### Which is updated more often, PolyPhase or AddStation?

PolyPhase ships an update every 3 weeks, and AddStation weekly. Most recently, PolyPhase was updated on October 7, 2026 and AddStation on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*