# Jynth vs Opaline FM

The clearest difference is rating: Opaline FM at 4.7 against Jynth's 4.1. Opaline FM also leads on in-app purchases (none vs 1) and update cadence (every 6 days vs every 2 weeks). Jynth's advantage is ratings volume (12 vs 3) and device support (4 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Jynth sells 1 one-off in-app purchase. Opaline FM asks for nothing beyond the download.

Opaline FM holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 12 and 3 respectively.

Jynth ships an update every 2 weeks, Opaline FM every 6 days. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Jynth | Opaline FM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (12 ratings)](https://appshunter.io/ios/app/jynth-physics-analog-synth/id6761420030/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/opaline-fm/id6790603368/reviews)** |
| Number of ratings | **12** | 3 |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 3 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fingerlab](https://appshunter.io/developer/412786610) | [Hideki Konishi](https://appshunter.io/developer/6790603370) |

## What reviewers say

### Jynth

[App page](https://appshunter.io/ios/app/jynth-physics-analog-synth/id6761420030)

This music app recreates the warm, analog sound of a classic synth with a unique physics engine for organic soundscapes. Explore vintage tones, advanced modulation, and innovative performance features like assigning different presets to individual notes.

**Highlights:** Analog-style signal chain, Physics-driven modulation, Preset Per Note & Preset Ribbon, 5 studio-grade effects, AUv3 plugin support, MIDI controller integration

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $9.99 | one-time |


### Opaline FM

[App page](https://appshunter.io/ios/app/opaline-fm/id6790603368)

Create and perform music with a virtual keyboard and advanced sound editing tools. Explore various playing modes, connect external MIDI devices, and manage your sound library. Offers deep control over FM synthesis parameters.

**Highlights:** Virtual keyboard for immediate performance, Detailed sound editing (algorithm, operators, envelopes, LFO, effects), Poly/Mono and Full/Fingered portamento, Single, Dual, and Split playing modes, External MIDI keyboard support, 32-voice SysEx bank management, Built-in reverb, delay, chorus, and tone effects

**In-app purchases:** none


## Frequently asked questions

### Is Jynth free?

Jynth is free to download, with in-app purchases available.

### Is Opaline FM free?

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

### Which has better reviews, Jynth or Opaline FM?

Opaline FM is rated higher. Jynth averages 4.1 out of 5 from 12 ratings, while Opaline FM averages 4.7 from 3 ratings.

### Do Jynth or Opaline FM have ads?

Neither Jynth nor Opaline FM shows ads.

### Which is updated more often, Jynth or Opaline FM?

Jynth ships an update every 2 weeks, and Opaline FM every 6 days. Most recently, Jynth was updated on October 10, 2026 and Opaline FM on October 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.*