# WindSynth 16 vs spool.

The clearest difference is in-app purchases: WindSynth 16 at none against spool.'s 1. spool.'s advantage is ads (none vs shown) and iOS requirement (17.0 vs 26.4). On price and device support there is nothing between them.

Both are free to download. spool. sells 1 one-off in-app purchase. WindSynth 16 asks for nothing beyond the download.

## The numbers

| Metric | WindSynth 16 | spool. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/spool-tape-synth/id6785721308/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | — |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 2 MB |
| Requires iOS | 26.4 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) | [Kristopher Yang](https://appshunter.io/developer/6785721310) |

## What reviewers say

### WindSynth 16

[App page](https://appshunter.io/ios/app/windsynth-16/id6766004505)

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

**In-app purchases:** none


### 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 WindSynth 16 free?

WindSynth 16 is free to download, with no in-app purchases.

### Is spool. free?

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

### Do WindSynth 16 or spool. have ads?

WindSynth 16 shows ads; spool. does not.

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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.*