# AddStation vs QuadroSphere

The clearest difference is rating: QuadroSphere at 5.0 against AddStation's 4.5. QuadroSphere also leads on review sentiment (100% vs 82%) and chart position (#194 vs unranked). AddStation's advantage is price ($8.99 vs $14.99) and update cadence (weekly vs every 3 weeks). On ads, in-app purchases, monetization model and device support there is nothing between them.

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

QuadroSphere holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 43 and 10 respectively. Written reviews point the same way: 82% of AddStation's written reviews are positive against 100% of QuadroSphere's.

AddStation ships an update weekly, QuadroSphere every 3 weeks. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | AddStation | QuadroSphere |
| --- | --- | --- |
| Price | **$8.99** | $14.99 |
| Rating | [4.5 (43 ratings)](https://appshunter.io/ios/app/addstation/id1500919657/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/quadrosphere/id6740915664/reviews)** |
| Number of ratings | **43** | 10 |
| Positive reviews | 82.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Paid | Paid |
| Best chart rank | — | **#194** |
| Size | 133 MB | 18 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### 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


### QuadroSphere

[App page](https://appshunter.io/ios/app/quadrosphere/id6740915664)

**Currently charting:** #194 Top Paid · Music (US App Store)

This audio plugin allows musicians to sculpt immersive soundscapes by controlling stereo placement and effects across four distinct frequency bands. Create dynamic, atmospheric audio with automated movement and morphing between saved settings.

**Highlights:** 4 configurable frequency bands, Control stereo separation, level, and pan per band, Create and morph between 12 snapshots, Modulation control for automated sweeps, Per-band effects (Haas, Delay, Reverb, Chorus, Compressor), Convert mono to pseudo-stereo, MIDI CC control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AddStation free?

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

### Is QuadroSphere free?

QuadroSphere costs $14.99, with no in-app purchases.

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

QuadroSphere is rated higher. AddStation averages 4.5 out of 5 from 43 ratings, while QuadroSphere averages 5.0 from 10 ratings.

### Do AddStation or QuadroSphere have ads?

Neither AddStation nor QuadroSphere shows ads.

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

AddStation ships an update weekly, and QuadroSphere every 3 weeks. Most recently, AddStation was updated on October 9, 2026 and QuadroSphere on October 8, 2026.

---

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