# OPL AUv3 FM Synth vs Outer Space

The clearest difference is price: OPL AUv3 FM Synth at $9.99 against Outer Space's $19.99. OPL AUv3 FM Synth also leads on update cadence (every 3 weeks vs every 6 months). Outer Space's advantage is rating (5.0 vs 4.3) and review sentiment (100% vs 73%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

OPL AUv3 FM Synth costs $9.99 and Outer Space $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Outer Space holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 23 and 16 respectively. Written reviews point the same way: 73% of OPL AUv3 FM Synth's written reviews are positive against 100% of Outer Space's.

OPL AUv3 FM Synth ships an update every 3 weeks, Outer Space every 6 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OPL AUv3 FM Synth | Outer Space |
| --- | --- | --- |
| Price | **$9.99** | $19.99 |
| Rating | [4.3 (23 ratings)](https://appshunter.io/ios/app/opl-auv3-fm-synth/id1516617949/reviews) | **[5.0 (16 ratings)](https://appshunter.io/ios/app/outer-space-tape-echo/id6473747074/reviews)** |
| Number of ratings | **23** | 16 |
| Positive reviews | 72.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Paid | Paid |
| Size | 42 MB | 25 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) |

## What reviewers say

### OPL AUv3 FM Synth

[App page](https://appshunter.io/ios/app/opl-auv3-fm-synth/id1516617949)

Emulates the iconic Yamaha OPL2 chip for classic game soundtracks and electronic music. Offers FM and additive synthesis with over 2000 presets and 16x oversampling for clear audio. Requires a MIDI keyboard for standalone use.

**Highlights:** OPL2 chip emulation, FM and additive synthesis, Distinctive percussion mode, 16x oversampling, Over 2000 presets, Standalone MIDI keyboard support

**Features:** macOS Compatibility

**In-app purchases:** none


### Outer Space

[App page](https://appshunter.io/ios/app/outer-space-tape-echo/id6473747074)

This app emulates a vintage tape echo unit from the seventies, featuring three playback heads and two spring reverb tanks. It models various tape responses and analog imperfections for authentic sound.

**Highlights:** Tape echo emulation, Three playback heads, Two spring reverb tanks, Multiple tape responses, Analog imperfection modeling, AUv3 and Standalone support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OPL AUv3 FM Synth free?

OPL AUv3 FM Synth costs $9.99, with no in-app purchases.

### Is Outer Space free?

Outer Space costs $19.99, with no in-app purchases.

### Which has better reviews, OPL AUv3 FM Synth or Outer Space?

Outer Space is rated higher. OPL AUv3 FM Synth averages 4.3 out of 5 from 23 ratings, while Outer Space averages 5.0 from 16 ratings.

### Do OPL AUv3 FM Synth or Outer Space have ads?

Neither OPL AUv3 FM Synth nor Outer Space shows ads.

### Which is updated more often, OPL AUv3 FM Synth or Outer Space?

OPL AUv3 FM Synth ships an update every 3 weeks, and Outer Space every 6 months. Most recently, OPL AUv3 FM Synth was updated on October 29, 2026 and Outer Space on October 30, 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.*