# FAC Gravity vs ihapiNES

The clearest difference is rating: FAC Gravity at 4.9 against ihapiNES's 3.0. FAC Gravity also leads on chart position (#167 vs unranked) and ratings volume (8 vs 2). ihapiNES's advantage is in-app purchases (none vs 3) and price ($2.99 vs $9.99). On ads, monetization model and iOS requirement there is nothing between them.

FAC Gravity costs $9.99 and ihapiNES $2.99 up front. FAC Gravity sells 3 one-off in-app purchases. ihapiNES asks for nothing beyond the download.

FAC Gravity holds the better App Store score, 4.9 against 3.0. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

## The numbers

| Metric | FAC Gravity | ihapiNES |
| --- | --- | --- |
| Price | $9.99 | **$2.99** |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/fac-gravity/id6799092848/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/ihapines/id6815554989/reviews) |
| Number of ratings | **8** | 2 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | Paid | Paid |
| Best chart rank | **#167** | — |
| Size | 4 MB | 13 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Frederic Corvest](https://appshunter.io/developer/1230164765) | [Twisted-Electrons](https://appshunter.io/developer/1464404702) |

## What reviewers say

### FAC Gravity

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

**Currently charting:** #167 Top Paid · Music (US App Store)

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 |


### ihapiNES

[App page](https://appshunter.io/ios/app/ihapines/id6815554989)

Create chiptune music with a pocket-sized groovebox. Emulates classic NES sounds with four tracks for bass, voices, and drums. Offers hands-on sequencing, performance effects, and MIDI input.

**Highlights:** Four-track sound engine (bass, 2 voices, drums), Realistic NES emulation for authentic chip sounds, Hands-on sequencing with live recording, Performance effects like arpeggios and vibrato, Standalone app and AUv3 instrument, MIDI input for external control, Ableton Link for network jamming

**In-app purchases:** none


## Frequently asked questions

### Is FAC Gravity free?

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

### Is ihapiNES free?

ihapiNES costs $2.99, with no in-app purchases.

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

FAC Gravity is rated higher. FAC Gravity averages 4.9 out of 5 from 8 ratings, while ihapiNES averages 3.0 from 2 ratings.

### Do FAC Gravity or ihapiNES have ads?

Neither FAC Gravity nor ihapiNES 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.*