# Graycore vs Ninja Action MAI

The clearest difference is in-app purchases: Ninja Action MAI at none against Graycore's 7. Graycore's advantage is ads (none vs shown) and update cadence (every 5 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Graycore sells 7 one-off in-app purchases. Ninja Action MAI asks for nothing beyond the download.

Graycore ships an update every 5 days, Ninja Action MAI monthly. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Graycore | Ninja Action MAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/graycore/id1570178497/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 114 MB | 175 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Yolleg Ltd](https://appshunter.io/developer/1221279859) | [REX NOAH ENTERTAINMENT K.K.](https://appshunter.io/developer/1698934885) |

## What reviewers say

### Graycore

[App page](https://appshunter.io/ios/app/graycore/id1570178497)

Engage in thrilling 3D combat as a character tasked with eliminating monsters using a variety of weapons. Customize your character's appearance with extensive color options and collect in-game currency to unlock more outfits. Enjoy smooth controls and console-quality graphics in this action-packed shooter.

**Highlights:** Third-person perspective gameplay, Monster shooting and combat, On-screen joystick controls, High-quality 3D graphics, Character outfit customization, Coin collection for unlocks

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Coins | $5.99 | one-time |
| 200 Coins | $6.99 | one-time |
| 500 Coins | $8.99 | one-time |
| 1000 Coins | $9.99 | one-time |
| 2000 Coins | $19.99 | one-time |
| 4000 Coins | $39.99 | one-time |
| 8000 Coins | $79.99 | one-time |


### Ninja Action MAI

[App page](https://appshunter.io/ios/app/ninja-action-mai/id6452503307)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Graycore free?

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

### Is Ninja Action MAI free?

Ninja Action MAI is free to download, with no in-app purchases.

### Do Graycore or Ninja Action MAI have ads?

Ninja Action MAI shows ads; Graycore does not.

### Which is updated more often, Graycore or Ninja Action MAI?

Graycore ships an update every 5 days, and Ninja Action MAI monthly. Most recently, Graycore was updated on October 5, 2026 and Ninja Action MAI on October 4, 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.*