# IFW vs RX

The clearest difference is price: IFW at Free against RX's $9.99. IFW also leads on update cadence (every 2 days vs weekly). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

IFW is free to download; RX costs $9.99 up front. IFW sells 1 in-app purchase, starting at $1.99 per month and RX sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

IFW ships an update every 2 days, RX weekly. Both last shipped on October 29, 2026.

## The numbers

| Metric | IFW | RX |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/ifw-wind-synth/id1549446635/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | Freemium | — |
| Size | 36 MB | 25 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masanao Takeuchi](https://appshunter.io/developer/1077988164) | [sung ju KIM](https://appshunter.io/developer/6781333993) |

## What reviewers say

### IFW

[App page](https://appshunter.io/ios/app/ifw-wind-synth/id1549446635)

This app provides a dedicated sound engine for wind synthesizers, offering professional-grade expressive sounds. Connect your wind controller via USB to access high-quality oscillators, analog-style filters, and rich effects. Share custom patches with a global community.

**Highlights:** Dedicated sound engine for wind synths, High-quality oscillator and analog-style filter, Rich effects and special filters, Intuitive modulation matrix, Community patch sharing, USB wind controller connection

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IFW Monthly Subscription | $1.99 | per month |


### RX

[App page](https://appshunter.io/ios/app/rx-79/id6821795679)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SJ PACK | $5.99 | one-time |


## Frequently asked questions

### Is IFW free?

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

### Is RX free?

RX costs $9.99, and also offers in-app purchases.

### Do IFW or RX have ads?

Neither IFW nor RX shows ads.

### Which is updated more often, IFW or RX?

IFW ships an update every 2 days, and RX weekly. Most recently, IFW was updated on October 29, 2026 and RX on October 29, 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.*