# SX1000 vs QuadroSphere

The clearest difference is price: QuadroSphere at $6.99 against SX1000's $19.99. QuadroSphere also leads on update cadence (every 3 weeks vs every 12 months) and review sentiment (100% vs 91%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

SX1000 costs $19.99 and QuadroSphere $6.99 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 — 5.0 for SX1000 against 5.0 for QuadroSphere. Both are backed by a comparable volume of ratings — 10 and 10 respectively. Written reviews are what separate them: 91% of SX1000's written reviews are positive against 100% of QuadroSphere's.

SX1000 ships an update every 12 months, QuadroSphere every 3 weeks. The most recent releases landed on November 4, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | SX1000 | QuadroSphere |
| --- | --- | --- |
| Price | $19.99 | **$6.99** |
| Rating | [5.0 (10 ratings)](https://appshunter.io/ios/app/sx1000-analogue-synth/id6739143757/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/quadrosphere/id6740915664/reviews) |
| Number of ratings | 10 | 10 |
| Positive reviews | 90.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 30 MB | 18 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### SX1000

[App page](https://appshunter.io/ios/app/sx1000-analogue-synth/id6739143757)

This app faithfully emulates a vintage analog synthesizer, offering musicians hands-on control. It expands upon the original with polyphonic mode, a sub-oscillator, and integrated effects.

**Highlights:** Faithful emulation of JEN SX1000, Polyphonic mode, Sub-oscillator (-3 octaves), Integrated arpeggiator, Four flexible effects, AUv3 and Standalone support

**Features:** Vision Pro support

**In-app purchases:** none


### QuadroSphere

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

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 SX1000 free?

SX1000 costs $19.99, with no in-app purchases.

### Is QuadroSphere free?

QuadroSphere costs $6.99, with no in-app purchases.

### Which has better reviews, SX1000 or QuadroSphere?

SX1000 and QuadroSphere are both rated 5.0 out of 5 on the App Store, from 10 and 10 ratings respectively.

### Do SX1000 or QuadroSphere have ads?

Neither SX1000 nor QuadroSphere shows ads.

### Which is updated more often, SX1000 or QuadroSphere?

SX1000 ships an update every 12 months, and QuadroSphere every 3 weeks. Most recently, SX1000 was updated on November 4, 2026 and QuadroSphere on November 11, 2026.

---

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