# Groove Stew vs 421Grid

The clearest difference is update cadence: 421Grid at every 3 months against Groove Stew's every 28 months. Groove Stew's advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Groove Stew costs $1.99 and 421Grid $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Groove Stew ships an update every 28 months, 421Grid every 3 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Groove Stew | 421Grid |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/groove-stew/id1587185162/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 114 MB | 4 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stuart Pray](https://appshunter.io/developer/1587185164) | [N. Wheeler](https://appshunter.io/developer/312350021) |

## What reviewers say

### Groove Stew

[App page](https://appshunter.io/ios/app/groove-stew/id1587185162)

Practice and learn drum grooves with a fun and exciting tool. Generate thousands of unique variations or create your own, and test your reading skills. Customize notes within grooves to suit your practice needs.

**Highlights:** Randomized syncopated drum groove practice, Thousands of groove variations, Customizable groove creation, Adjustable difficulty levels, Variety of groove 'feels' (note values), Reading skill testing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 421Grid

[App page](https://appshunter.io/ios/app/421grid/id1598461370)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Groove Stew free?

Groove Stew costs $1.99, with no in-app purchases.

### Is 421Grid free?

421Grid costs $1.99, with no in-app purchases.

### Do Groove Stew or 421Grid have ads?

Neither Groove Stew nor 421Grid shows ads.

### Which is updated more often, Groove Stew or 421Grid?

Groove Stew ships an update every 28 months, and 421Grid every 3 months. Most recently, Groove Stew was updated on October 24, 2026 and 421Grid on October 15, 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.*