# 421Grid vs Setronome

The clearest difference is price: 421Grid at $1.99 against Setronome's $12.99. Setronome's advantage is update cadence (every 3 days vs every 3 months) and iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

421Grid costs $1.99 and Setronome $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

421Grid ships an update every 3 months, Setronome every 3 days. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | 421Grid | Setronome |
| --- | --- | --- |
| Price | **$1.99** | $12.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 4 MB | 45 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [N. Wheeler](https://appshunter.io/developer/312350021) | [Igor Lier](https://appshunter.io/developer/6786711729) |

## What reviewers say

### 421Grid

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

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

**In-app purchases:** none


### Setronome

[App page](https://appshunter.io/ios/app/setronome-live-metronome/id6786711727)

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

**In-app purchases:** none


## Frequently asked questions

### Is 421Grid free?

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

### Is Setronome free?

Setronome costs $12.99, with no in-app purchases.

### Do 421Grid or Setronome have ads?

Neither 421Grid nor Setronome shows ads.

### Which is updated more often, 421Grid or Setronome?

421Grid ships an update every 3 months, and Setronome every 3 days. Most recently, 421Grid was updated on November 11, 2026 and Setronome on November 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.*