# GridInstrument vs sub808

The clearest difference is review sentiment: GridInstrument at 83% against sub808's 0%. GridInstrument also leads on update cadence (weekly vs every 6 months) and price ($3.99 vs $9.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

GridInstrument costs $3.99 and sub808 $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GridInstrument holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 11 and 10 respectively. Written reviews point the same way: 83% of GridInstrument's written reviews are positive against 0% of sub808's.

GridInstrument ships an update weekly, sub808 every 6 months. The most recent releases landed on September 11, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | GridInstrument | sub808 |
| --- | --- | --- |
| Price | **$3.99** | $9.99 |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/gridinstrument/id1296511558/reviews)** | [4.2 (10 ratings)](https://appshunter.io/ios/app/sub808/id6475637520/reviews) |
| Number of ratings | **11** | 10 |
| Positive reviews | **83.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 months |
| Monetization | Paid | Paid |
| Size | 15 MB | 150 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Decidedly, LLC](https://appshunter.io/developer/783782943) | [OSC Audio](https://appshunter.io/developer/1693533681) |

## What reviewers say

### GridInstrument

[App page](https://appshunter.io/ios/app/gridinstrument/id1296511558)

This app transforms your iOS device into a unique musical instrument with a grid-based interface. Explore over 20 musical modes and various grid layouts. It also supports external MIDI controllers like the Launchpad for expanded creative possibilities.

**Highlights:** Grid-based note arrangement, Launchpad integration, Over 20 musical modes, Multiple grid layouts, Core MIDI out, Audiobus 3 MIDI support

**Features:** Vision Pro support

**In-app purchases:** none


### sub808

[App page](https://appshunter.io/ios/app/sub808/id6475637520)

Create powerful sub-bass sounds with this intuitive instrument app. Explore analog-inspired flavors, fine-tune saturation, and sculpt your basslines with versatile envelope and shaper controls. Compatible across devices for seamless production.

**Highlights:** 50 Factory Presets, 4 Analog Flavors, 8 Saturation Modes, Filter Cutoff & Glide, Handcrafted Envelope & Shaper, Cross-platform Compatibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GridInstrument free?

GridInstrument costs $3.99, with no in-app purchases.

### Is sub808 free?

sub808 costs $9.99, with no in-app purchases.

### Which has better reviews, GridInstrument or sub808?

GridInstrument is rated higher. GridInstrument averages 4.5 out of 5 from 11 ratings, while sub808 averages 4.2 from 10 ratings.

### Do GridInstrument or sub808 have ads?

Neither GridInstrument nor sub808 shows ads.

### Which is updated more often, GridInstrument or sub808?

GridInstrument ships an update weekly, and sub808 every 6 months. Most recently, GridInstrument was updated on September 11, 2026 and sub808 on September 7, 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.*