# TETSUO vs FAC Gravity

The clearest difference is in-app purchases: TETSUO at none against FAC Gravity's 3. TETSUO also leads on iOS requirement (15.6 vs 17.0). FAC Gravity's advantage is ratings volume (7 vs 2). On price, rating, ads and monetization model there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for TETSUO against 4.9 for FAC Gravity. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

## The numbers

| Metric | TETSUO | FAC Gravity |
| --- | --- | --- |
| Price | $9.99 | $9.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tetsuo/id6786673685/reviews)** | [4.9 (7 ratings)](https://appshunter.io/ios/app/fac-gravity/id6799092848/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Monetization | Paid | Paid |
| Size | 29 MB | 4 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Moran](https://appshunter.io/developer/6786293116) | [Frederic Corvest](https://appshunter.io/developer/1230164765) |

## What reviewers say

### TETSUO

[App page](https://appshunter.io/ios/app/tetsuo/id6786673685)

This app offers a unique, generative percussion experience with no pre-loaded samples. It features a complex sound engine and a dynamic sequencer that can be unpredictable, allowing for negotiation rather than direct programming. Create and save evolving soundscapes with its section-based recording system.

**Highlights:** Chaotic percussion engine, No samples or library, Resonant filter and bitcrusher, Dynamic 16-slot sequencer, Randomized hit skipping, Section-based sound recording, AUv3 and standalone 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 TETSUO free?

TETSUO costs $9.99, with no in-app purchases.

### Is FAC Gravity free?

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

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

TETSUO is rated higher. TETSUO averages 5.0 out of 5 from 2 ratings, while FAC Gravity averages 4.9 from 7 ratings.

### Do TETSUO or FAC Gravity have ads?

Neither TETSUO 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.*