# 421Grid vs Peach Ear Trainer

The clearest difference is price: Peach Ear Trainer at Free against 421Grid's $1.99. 421Grid's advantage is iOS requirement (18.0 vs 26.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Peach Ear Trainer is free to download; 421Grid costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

421Grid ships an update every 3 months, Peach Ear Trainer every 2 months. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 421Grid | Peach Ear Trainer |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 4 MB | 53 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [N. Wheeler](https://appshunter.io/developer/312350021) | [Michael Schuerig](https://appshunter.io/developer/6773384467) |

## What reviewers say

### 421Grid

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

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

**In-app purchases:** none


### Peach Ear Trainer

[App page](https://appshunter.io/ios/app/peach-ear-trainer/id6773384465)

**In-app purchases:** none


## Frequently asked questions

### Is 421Grid free?

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

### Is Peach Ear Trainer free?

Peach Ear Trainer is free to download, with no in-app purchases.

### Do 421Grid or Peach Ear Trainer have ads?

Neither 421Grid nor Peach Ear Trainer shows ads.

### Which is updated more often, 421Grid or Peach Ear Trainer?

421Grid ships an update every 3 months, and Peach Ear Trainer every 2 months. Most recently, 421Grid was updated on November 11, 2026 and Peach Ear Trainer on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*