# FAC Polyflo vs SignatureRVB

The clearest difference is in-app purchases: SignatureRVB at none against FAC Polyflo's 3. SignatureRVB also leads on price ($5.99 vs $9.99). FAC Polyflo's advantage is chart position (#181 vs unranked). On ads, device support and iOS requirement there is nothing between them.

FAC Polyflo costs $9.99 and SignatureRVB $5.99 up front. FAC Polyflo sells 3 one-off in-app purchases. SignatureRVB asks for nothing beyond the download.

## The numbers

| Metric | FAC Polyflo | SignatureRVB |
| --- | --- | --- |
| Price | $9.99 | **$5.99** |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/fac-polyflo/id6748651183/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | Paid | — |
| Best chart rank | **#181** | — |
| Size | 5 MB | 11 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Frederic Corvest](https://appshunter.io/developer/1230164765) | [Antonio Sorin TASU](https://appshunter.io/developer/1883473854) |

## What reviewers say

### FAC Polyflo

[App page](https://appshunter.io/ios/app/fac-polyflo/id6748651183)

**Currently charting:** #181 Top Paid · Music (US App Store)

This AUv3 plugin allows you to modulate and sequence MIDI instruments and modular hardware. It outputs both MIDI and analog CV simultaneously, supporting hybrid digital and analog setups. Convert various signals into control voltages for deep and flexible modulation.

**Highlights:** AUv3 plugin for modulation and sequencing, Outputs MIDI and analog CV simultaneously, Converts signals to control voltages, Two LFO generators with syncing, Integrated envelope follower, Six FLO(W) processors for signal shaping, Universal Purchase for iOS, macOS, Vision Pro

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $14.99 | one-time |


### SignatureRVB

[App page](https://appshunter.io/ios/app/signaturervb/id6773638847)

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

**In-app purchases:** none


## Frequently asked questions

### Is FAC Polyflo free?

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

### Is SignatureRVB free?

SignatureRVB costs $5.99, with no in-app purchases.

### Do FAC Polyflo or SignatureRVB have ads?

Neither FAC Polyflo nor SignatureRVB 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.*