# Ace Grind Training vs USJN

Ace Grind Training and USJN are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Ace Grind Training | USJN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 42 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ace Grind LLC](https://appshunter.io/developer/1818928990) | [Fastbreak Compete LLC](https://appshunter.io/developer/1612708837) |

## What reviewers say

### Ace Grind Training

[App page](https://appshunter.io/ios/app/ace-grind-training/id6746895822)

**In-app purchases:** none


### USJN

[App page](https://appshunter.io/ios/app/usjn/id6760915781)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ace Grind Training free?

Ace Grind Training is free to download, with no in-app purchases.

### Is USJN free?

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

### Do Ace Grind Training or USJN have ads?

Neither Ace Grind Training nor USJN shows ads.

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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.*