# SynthBridge MIDI Synth vs DX

The clearest difference is review sentiment: SynthBridge MIDI Synth at 100% against DX's 0%. SynthBridge MIDI Synth also leads on rating (4.8 vs 2.0) and iOS requirement (15.0 vs 26.5). DX's advantage is in-app purchases (none vs 7). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. SynthBridge MIDI Synth sells 7 in-app purchases, starting at $1.99 per month. DX asks for nothing beyond the download.

SynthBridge MIDI Synth holds the better App Store score, 4.8 against 2.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 100% of SynthBridge MIDI Synth's written reviews are positive against 0% of DX's.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | SynthBridge MIDI Synth | DX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/synthbridge-midi-synth/id6778690596/reviews)** | [2.0 (2 ratings)](https://appshunter.io/ios/app/dx-square-classic-fm-synthe/id6791068356/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 76 MB | 86 MB |
| Requires iOS | **15.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [啟东 徐](https://appshunter.io/developer/6778238620) | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) |

## What reviewers say

### SynthBridge MIDI Synth

[App page](https://appshunter.io/ios/app/synthbridge-midi-synth/id6778690596)

Transform your device into a versatile MIDI sound module and virtual piano. Load SoundFont files, connect controllers, and utilize expressive performance tools for practice, production, or live music.

**Highlights:** MIDI controller support (Bluetooth, USB, Network), SoundFont (SF2/SF3) loading and playback, Multi-touch piano keyboard and drum pads, Pitch bend and modulation wheels, MIDI file playback and recording, Customizable velocity curves

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud Monthly | $1.99 | per month |
| Cloud Yearly | $12.99 | per year |
| Supporter Tip | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Supporter Plus | $4.99 | one-time |
| SynthBridge Pro | $4.99 | one-time |
| Supporter Patron | $9.99 | one-time |


### DX

[App page](https://appshunter.io/ios/app/dx-square-classic-fm-synthe/id6791068356)

Create and manipulate 80s FM synth sounds with a tactile hardware-style interface. Explore curated presets, use a Kaoss Physics-style filter pad for expressive control, and add essential effects. Ideal for music production or on-the-go sound design.

**Highlights:** Hardware-style UI, Curated presets, Kaoss Physics-style filter pad, Essential FX (Chorus, Delay, Reverb), Mini-keyboard, Dual-language support

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

**In-app purchases:** none


## Frequently asked questions

### Is SynthBridge MIDI Synth free?

SynthBridge MIDI Synth is free to download, with in-app purchases available.

### Is DX free?

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

### Which has better reviews, SynthBridge MIDI Synth or DX?

SynthBridge MIDI Synth is rated higher. SynthBridge MIDI Synth averages 4.8 out of 5 from 4 ratings, while DX averages 2.0 from 2 ratings.

### Do SynthBridge MIDI Synth or DX have ads?

Neither SynthBridge MIDI Synth nor DX shows ads.

### Which is updated more often, SynthBridge MIDI Synth or DX?

SynthBridge MIDI Synth ships an update every 2 weeks, and DX every 2 weeks. Most recently, SynthBridge MIDI Synth was updated on October 25, 2026 and DX on October 19, 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.*