# FAC Gravity vs PNEUMATIC

The clearest difference is price: PNEUMATIC at Free against FAC Gravity's $9.99. PNEUMATIC also leads on in-app purchases (none vs 3) and iOS requirement (15.6 vs 17.0). On rating, ratings volume, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for FAC Gravity against 5.0 for PNEUMATIC. Both are backed by a comparable volume of ratings — 7 and 4 respectively.

## The numbers

| Metric | FAC Gravity | PNEUMATIC |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.9 (7 ratings)](https://appshunter.io/ios/app/fac-gravity/id6799092848/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pneumatic/id6816378252/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | Paid | **Free** |
| Size | 4 MB | 16 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Frederic Corvest](https://appshunter.io/developer/1230164765) | [Anthony Moran](https://appshunter.io/developer/6786293116) |

## What reviewers say

### 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 |


### PNEUMATIC

[App page](https://appshunter.io/ios/app/pneumatic/id6816378252)

This app simulates a unique valve pressure synthesizer, allowing users to control pressure, tune resonance, and add buzzing whistles. It can be played directly on screen or with a MIDI keyboard, offering a distinctive soundscape.

**Highlights:** Pressure control, Resonant tuning, Buzzing whistle effect, MIDI keyboard support, Save and load presets, AUv3 instrument

**In-app purchases:** none


## Frequently asked questions

### Is FAC Gravity free?

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

### Is PNEUMATIC free?

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

### Which has better reviews, FAC Gravity or PNEUMATIC?

PNEUMATIC is rated higher. FAC Gravity averages 4.9 out of 5 from 7 ratings, while PNEUMATIC averages 5.0 from 4 ratings.

### Do FAC Gravity or PNEUMATIC have ads?

Neither FAC Gravity nor PNEUMATIC 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.*