# ARN vs FAC Gravity

The clearest difference is price: ARN at Free against FAC Gravity's $9.99. ARN also leads on in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

ARN is free to download; FAC Gravity costs $9.99 up front. FAC Gravity sells 3 one-off in-app purchases. ARN asks for nothing beyond the download.

## The numbers

| Metric | ARN | FAC Gravity |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | — | **[4.9 (7 ratings)](https://appshunter.io/ios/app/fac-gravity/id6799092848/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | — | Paid |
| Size | 2 MB | 4 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Nicolas Augsburger Rossi](https://appshunter.io/developer/1803162820) | [Frederic Corvest](https://appshunter.io/developer/1230164765) |

## What reviewers say

### ARN

[App page](https://appshunter.io/ios/app/arn-music-3/id6743633914)

**Features:** Vision Pro support

**In-app purchases:** none


### FAC Gravity

[App page](https://appshunter.io/ios/app/fac-gravity/id6799092848)

Create unique audio effects like Barberpole glissandos, spectral illusions, and evolving echoes. This frequency shifter offers stereo or mono processing with customizable feedback loops and modulation for dynamic sound design.

**Highlights:** Barberpole glissandos and spectral illusions, Stereo or mono frequency shifting, Spiral feedback loop with delay and filtering, Modulation matrix with LFO and envelope follower, Tempo-synced or MIDI-driven effects, Dry/wet mix and optional limiting

**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 |


## Frequently asked questions

### Is ARN free?

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

### Is FAC Gravity free?

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

### Do ARN or FAC Gravity have ads?

Neither ARN nor FAC Gravity 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.*