# lo vs GRFX

The clearest difference is rating: lo at 5.0 against GRFX's 4.6. lo also leads on update cadence (fortnightly vs monthly) and iOS requirement (11.0 vs 17.0). GRFX's advantage is price ($6.99 vs $9.99) and review sentiment (78% vs 67%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

lo costs $9.99 and GRFX $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

lo holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 29 and 11 respectively. Written reviews complicate that: 67% of lo's written reviews are positive against 78% of GRFX's, so the app with the better star average is not the one people write more warmly about.

lo ships an update fortnightly, GRFX monthly. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | lo | GRFX |
| --- | --- | --- |
| Price | $9.99 | **$6.99** |
| Rating | **[5.0 (29 ratings)](https://appshunter.io/ios/app/lo-fi-af/id6444068732/reviews)** | [4.6 (11 ratings)](https://appshunter.io/ios/app/grfx-granular-effects/id6745477065/reviews) |
| Number of ratings | **29** | 11 |
| Positive reviews | 66.7% of reviews | **77.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Paid | Paid |
| Size | 17 MB | 117 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Unfiltered Audio](https://appshunter.io/developer/1638381375) | [Imaginando Lda](https://appshunter.io/developer/895445015) |

## What reviewers say

### lo

[App page](https://appshunter.io/ios/app/lo-fi-af/id6444068732)

This app offers a versatile toolkit for manipulating audio with a variety of lo-fi effects. Explore historical audio degradation, modern digital artifacts, and analog warmth to transform your sound.

**Highlights:** Convolution reverb with unique impulse responses, Spectral processing for MP3 simulation and pitch shifting, Digital section with bitcrusher and CD stutter, Analog section with tape saturation and noise generation, Rearrangeable processing sections, Dozens of presets for sound warping

**Features:** Vision Pro support

**In-app purchases:** none


### GRFX

[App page](https://appshunter.io/ios/app/grfx-granular-effects/id6745477065)

Transform ordinary audio into unique sonic textures, evolving soundscapes, and rhythmic glitches. This app offers precise control over sound manipulation with a unique pitch controller, multiple LFOs, and a flexible multi-effect chain. Create complex and immersive audio transformations in real-time.

**Highlights:** Granular engine for textures and rhythms, Harmonic Triangle pitch controller, Multi-effect chain with probabilistic routing, Four self-modulating LFOs, Real-time audio sculpting, AUv3 plugin and standalone app

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is lo free?

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

### Is GRFX free?

GRFX costs $6.99, with no in-app purchases.

### Which has better reviews, lo or GRFX?

lo is rated higher. lo averages 5.0 out of 5 from 29 ratings, while GRFX averages 4.6 from 11 ratings.

### Do lo or GRFX have ads?

Neither lo nor GRFX shows ads.

### Which is updated more often, lo or GRFX?

lo ships an update fortnightly, and GRFX monthly. Most recently, lo was updated on October 6, 2026 and GRFX on October 12, 2026.

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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.*