# LH Rubbing vs UNO Synth Editor

The clearest difference is review sentiment: LH Rubbing at 77% against UNO Synth Editor's 33%. LH Rubbing also leads on rating (4.2 vs 3.8). UNO Synth Editor's advantage is update cadence (every 9 months vs every 43 months) and device support (3 vs 1). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

LH Rubbing holds the better App Store score, 4.2 against 3.8. Both are backed by a comparable volume of ratings — 19 and 12 respectively. Written reviews point the same way: 77% of LH Rubbing's written reviews are positive against 33% of UNO Synth Editor's.

LH Rubbing ships an update every 43 months, UNO Synth Editor every 9 months. Both last shipped on November 13, 2026.

## The numbers

| Metric | LH Rubbing | UNO Synth Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (19 ratings)](https://appshunter.io/ios/app/lh-rubbing/id652348001/reviews)** | [3.8 (12 ratings)](https://appshunter.io/ios/app/uno-synth-editor/id1401362007/reviews) |
| Number of ratings | **19** | 12 |
| Positive reviews | **76.9% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 9 months** |
| Monetization | Free | Free |
| Size | 11 MB | 8 MB |
| Requires iOS | 15 | **9.3** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [昊 刘](https://appshunter.io/developer/652348004) | [IK Multimedia US, LLC](https://appshunter.io/developer/323694278) |

## What reviewers say

### LH Rubbing

[App page](https://appshunter.io/ios/app/lh-rubbing/id652348001)

This app is a polyphonic synthesizer for iPad, offering rich analog-style sounds. It features multiple oscillators, LFOs, and an ADSR envelope for sound shaping. A unique keyboard rubbing feature allows for direct vibrato control.

**Highlights:** Polyphonic analog-style synthesis, Multiple waveform and noise oscillators, Dual LFO modulation, Multimode filter (low-pass, high-pass, band-pass), ADSR envelope generator, Keyboard Rubbing vibrato control

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

**In-app purchases:** none


### UNO Synth Editor

[App page](https://appshunter.io/ios/app/uno-synth-editor/id1401362007)

This app provides advanced control for a specific analog synthesizer, allowing users to manage presets, shape sounds, and configure global and MIDI settings. It offers access to all synth engine elements and includes artist-created presets for inspiration.

**Highlights:** Preset management and transfer, Full control over synth engine, Sound shaping with envelopes and LFOs, Arpeggiator and keyboard controls, Global and MIDI settings configuration, Artist preset library

**In-app purchases:** none


## Frequently asked questions

### Is LH Rubbing free?

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

### Is UNO Synth Editor free?

UNO Synth Editor is free to download, with no in-app purchases.

### Which has better reviews, LH Rubbing or UNO Synth Editor?

LH Rubbing is rated higher. LH Rubbing averages 4.2 out of 5 from 19 ratings, while UNO Synth Editor averages 3.8 from 12 ratings.

### Do LH Rubbing or UNO Synth Editor have ads?

Neither LH Rubbing nor UNO Synth Editor shows ads.

### Which is updated more often, LH Rubbing or UNO Synth Editor?

LH Rubbing ships an update every 43 months, and UNO Synth Editor every 9 months. Most recently, LH Rubbing was updated on November 13, 2026 and UNO Synth Editor on November 13, 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.*