# JP vs Aureline

The clearest difference is rating: Aureline at 4.7 against JP's 1.0. Aureline also leads on update cadence (daily vs every 2 weeks) and ratings volume (7 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Aureline holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Aureline has 7 ratings behind it against 1, so its average is the more settled of the two.

JP ships an update every 2 weeks, Aureline daily. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | JP | Aureline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/jp-square-synthesizer/id6768194312/reviews) | **[4.7 (7 ratings)](https://appshunter.io/ios/app/aureline/id6794556772/reviews)** |
| Number of ratings | 1 | **7** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | Free |
| Size | 37 MB | 4 MB |
| Requires iOS | 26.5 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) | [Hideki Konishi](https://appshunter.io/developer/6790603370) |

## What reviewers say

### JP

[App page](https://appshunter.io/ios/app/jp-square-synthesizer/id6768194312)

This application emulates a legendary analog polyphonic synthesizer, offering 8 distinct analog synth voices. Users can sculpt sounds with authentic VCF and ADSR controls, utilize an arpeggiator, and split the keyboard for dual-sound performance. Built-in effects and pitch lever allow for expressive sound design on the go.

**Highlights:** 8 Analog Synth Voices, Authentic VCF Control, ADSR Envelope, Arpeggiator with 5 Patterns, Split and Solo Modes, Reverb & Chorus Effects, Pitch Lever

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Aureline

[App page](https://appshunter.io/ios/app/aureline/id6794556772)

This app is an 8-voice polyphonic synthesizer that combines the feel of classic analog synths with the unique character of waveform memory sound sources. It offers a wide range of sound creation capabilities, from warm pads and powerful basses to digital game sounds and sound effects.

**Highlights:** 8-voice polyphony, Dual oscillator configuration, Analog modeling and waveform memory, WAVE EDIT for drawing waveforms, POLY MOD, Filter/Amp Envelope, LFO, Arpeggiator, Chord, Hold

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JP free?

JP is free to download, with no in-app purchases.

### Is Aureline free?

Aureline is free to download, with no in-app purchases.

### Which has better reviews, JP or Aureline?

Aureline is rated higher. JP averages 1.0 out of 5 from 1 ratings, while Aureline averages 4.7 from 7 ratings.

### Do JP or Aureline have ads?

Neither JP nor Aureline shows ads.

### Which is updated more often, JP or Aureline?

JP ships an update every 2 weeks, and Aureline daily. Most recently, JP was updated on October 25, 2026 and Aureline on October 23, 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.*