# 421Grid vs Drumline Designer

The clearest difference is price: 421Grid at $1.99 against Drumline Designer's $19.99. Drumline Designer's advantage is update cadence (every 6 days vs every 3 months) and chart position (#183 vs unranked). On ads, in-app purchases and device support there is nothing between them.

421Grid costs $1.99 and Drumline Designer $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

421Grid ships an update every 3 months, Drumline Designer every 6 days. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 421Grid | Drumline Designer |
| --- | --- | --- |
| Price | **$1.99** | $19.99 |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/drumline-designer/id6763984962/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | — | Paid |
| Best chart rank | — | **#183** |
| Size | 4 MB | 213 MB |
| Requires iOS | 18.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [N. Wheeler](https://appshunter.io/developer/312350021) | [Christian Price](https://appshunter.io/developer/1880192070) |

## What reviewers say

### 421Grid

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

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

**In-app purchases:** none


### Drumline Designer

[App page](https://appshunter.io/ios/app/drumline-designer/id6763984962)

**Currently charting:** #183 Top Paid · Music (US App Store)

Create and edit drumline sheet music directly on your mobile device. This app offers an intuitive grid system for note entry, automatic beaming, and support for complex rhythms and articulations. Export your compositions as PDFs, audio, MusicXML, or animated videos.

**Highlights:** Intuitive grid-based note entry, Automatic beaming and placement, Support for tuplets and complex rhythms, Add accents, staccatos, marcatos, and legatos, Instant playback for review, Export to PDF, Audio, MusicXML, and video, Create animated video clips

**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 Drumline Designer free?

Drumline Designer costs $19.99, with no in-app purchases.

### Do 421Grid or Drumline Designer have ads?

Neither 421Grid nor Drumline Designer shows ads.

### Which is updated more often, 421Grid or Drumline Designer?

421Grid ships an update every 3 months, and Drumline Designer every 6 days. Most recently, 421Grid was updated on September 17, 2026 and Drumline Designer on September 10, 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.*