# SynthBridge MIDI Synth vs spool.

The clearest difference is rating: spool. at 5.0 against SynthBridge MIDI Synth's 4.7. spool. also leads on ratings volume (9 vs 3). SynthBridge MIDI Synth's advantage is iOS requirement (15.0 vs 17.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. SynthBridge MIDI Synth sells 7 in-app purchases, starting at $1.99 per month and spool. sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

spool. holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | SynthBridge MIDI Synth | spool. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/synthbridge-midi-synth/id6778690596/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/spool-tape-synth/id6785721308/reviews)** |
| Number of ratings | 3 | **9** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | — |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 76 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [啟东 徐](https://appshunter.io/developer/6778238620) | [Kristopher Yang](https://appshunter.io/developer/6785721310) |

## 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 |


### spool.

[App page](https://appshunter.io/ios/app/spool-tape-synth/id6785721308)

Create full songs on your phone with this pocket music studio. It offers a variety of sound engines, sampling capabilities, step sequencing, and a 4-track tape recorder for recording and mixing your music. Effects and MIDI controller support enhance the creative process.

**Highlights:** Multiple sound engines, Sampling and sequencing, 4-track tape recording, Extensive effects rack, MIDI controller support, Step sequencer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spool Pro | $9.99 | one-time |


## Frequently asked questions

### Is SynthBridge MIDI Synth free?

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

### Is spool. free?

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

### Which has better reviews, SynthBridge MIDI Synth or spool.?

spool. is rated higher. SynthBridge MIDI Synth averages 4.7 out of 5 from 3 ratings, while spool. averages 5.0 from 9 ratings.

### Do SynthBridge MIDI Synth or spool. have ads?

Neither SynthBridge MIDI Synth nor spool. shows ads.

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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.*