# NX vs Grass identifier º

The clearest difference is in-app purchases: NX at none against Grass identifier º's 2. NX also leads on iOS requirement (9.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Grass identifier º sells 2 in-app purchases, starting at $0.99 per 7 days. NX asks for nothing beyond the download.

NX ships an update every 4 months, Grass identifier º every 3 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | NX | Grass identifier º |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 146 MB | 64 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Directed Electronics Australia](https://appshunter.io/developer/1083778713) | [Alberto Soto](https://appshunter.io/developer/1702225144) |

## What reviewers say

### NX

[App page](https://appshunter.io/ios/app/nx-1800/id1570167177)

**Features:** macOS Compatibility

**In-app purchases:** none


### Grass identifier º

[App page](https://appshunter.io/ios/app/grass-identifier/id6767830781)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $0.99 | per 7 days |
| Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is NX free?

NX is free to download, with no in-app purchases.

### Is Grass identifier º free?

Grass identifier º is free to download, with in-app purchases available.

### Do NX or Grass identifier º have ads?

Neither NX nor Grass identifier º shows ads.

### Which is updated more often, NX or Grass identifier º?

NX ships an update every 4 months, and Grass identifier º every 3 months. Most recently, NX was updated on November 3, 2026 and Grass identifier º on November 5, 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.*