# Zero Chorus vs PSA1000 Jr

The clearest difference is review sentiment: PSA1000 Jr at 100% against Zero Chorus's 43%. PSA1000 Jr also leads on rating (5.0 vs 4.2). Zero Chorus's advantage is price ($2.99 vs $8.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Zero Chorus costs $2.99 and PSA1000 Jr $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PSA1000 Jr holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 22 and 21 respectively. Written reviews point the same way: 43% of Zero Chorus's written reviews are positive against 100% of PSA1000 Jr's.

Zero Chorus ships an update every 6 months, PSA1000 Jr every 9 months. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Zero Chorus | PSA1000 Jr |
| --- | --- | --- |
| Price | **$2.99** | $8.99 |
| Rating | [4.2 (22 ratings)](https://appshunter.io/ios/app/zero-chorus/id1056863629/reviews) | **[5.0 (21 ratings)](https://appshunter.io/ios/app/psa1000-jr/id1498486583/reviews)** |
| Number of ratings | **22** | 21 |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 9 months |
| Monetization | **Free** | Paid |
| Size | 15 MB | 17 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blamsoft, Inc.](https://appshunter.io/developer/1051938244) | [Nembrini Audio](https://appshunter.io/developer/1493296895) |

## What reviewers say

### Zero Chorus

[App page](https://appshunter.io/ios/app/zero-chorus/id1056863629)

This audio effect plugin provides a high-quality chorus inspired by the Roland Dimension D, offering a versatile sound without muddy low end. It integrates seamlessly with iOS DAWs and supports expanded controls for easy tweaking.

**Highlights:** Roland Dimension D style chorus, Feedback control for flanging, AUv3 audio unit extension, Expanded touch controls, Desktop quality algorithm, Thickens guitar and synth parts

**In-app purchases:** none


### PSA1000 Jr

[App page](https://appshunter.io/ios/app/psa1000-jr/id1498486583)

This audio plugin emulates a classic '90s analog guitar preamp, offering rich saturation for guitars, keyboards, bass, and vocals. It includes modern features like a dry/wet mix knob and phase reverse for enhanced versatility in recording and mixing.

**Highlights:** Analog saturation emulation, Dry/Wet mix knob, Phase Reverse switch, In and Out level controls, Standalone, AUv3, and IAA support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Zero Chorus free?

Zero Chorus costs $2.99, with no in-app purchases.

### Is PSA1000 Jr free?

PSA1000 Jr costs $8.99, with no in-app purchases.

### Which has better reviews, Zero Chorus or PSA1000 Jr?

PSA1000 Jr is rated higher. Zero Chorus averages 4.2 out of 5 from 22 ratings, while PSA1000 Jr averages 5.0 from 21 ratings.

### Do Zero Chorus or PSA1000 Jr have ads?

Neither Zero Chorus nor PSA1000 Jr shows ads.

### Which is updated more often, Zero Chorus or PSA1000 Jr?

Zero Chorus ships an update every 6 months, and PSA1000 Jr every 9 months. Most recently, Zero Chorus was updated on September 26, 2026 and PSA1000 Jr on September 21, 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.*