# N4 TEST vs Fayjp

The clearest difference is in-app purchases: Fayjp at none against N4 TEST's 5. Fayjp also leads on ads (none vs shown) and iOS requirement (15.1 vs 18.0). N4 TEST's advantage is update cadence (every 5 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. N4 TEST sells 5 in-app purchases, starting at $2.99 per month. Fayjp asks for nothing beyond the download.

N4 TEST ships an update every 5 days, Fayjp every 3 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | N4 TEST | Fayjp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 3 months |
| Size | 71 MB | 36 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [jaemin park](https://appshunter.io/developer/1663603862) | [Ibnu Muh Mukhlis](https://appshunter.io/developer/1878233405) |

## What reviewers say

### N4 TEST

[App page](https://appshunter.io/ios/app/n4-test/id6742312112)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-Month Subscription | $2.99 | per month |
| 1-Year Subscription | $19.99 | per year |
| Reading Set 2 | $0.99 | one-time |
| Listening Set 2 | $1.99 | one-time |
| 광고 제거 | $1.99 | one-time |


### Fayjp

[App page](https://appshunter.io/ios/app/fayjp/id6759350360)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is N4 TEST free?

N4 TEST is free to download, with in-app purchases available.

### Is Fayjp free?

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

### Do N4 TEST or Fayjp have ads?

N4 TEST shows ads; Fayjp does not.

### Which is updated more often, N4 TEST or Fayjp?

N4 TEST ships an update every 5 days, and Fayjp every 3 months. Most recently, N4 TEST was updated on November 4, 2026 and Fayjp 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.*