# Spiny Ninja vs OPM

The clearest difference is in-app purchases: OPM at none against Spiny Ninja's 4. Spiny Ninja's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Spiny Ninja sells 4 one-off in-app purchases. OPM asks for nothing beyond the download.

Spiny Ninja ships an update weekly, OPM every 2 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Spiny Ninja | OPM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 669 MB | 159 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Csharks Games & Solutions Pvt Ltd](https://appshunter.io/developer/400635482) | [YoTech](https://appshunter.io/developer/1896748042) |

## What reviewers say

### Spiny Ninja

[App page](https://appshunter.io/ios/app/spiny-ninja/id6738118295)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Pack | $0.99 | one-time |
| Medium Pack | $0.99 | one-time |
| Large Pack | $1.99 | one-time |
| Extra Large | $2.99 | one-time |


### OPM

[App page](https://appshunter.io/ios/app/opm-ultimate-strike/id6783259345)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spiny Ninja free?

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

### Is OPM free?

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

### Do Spiny Ninja or OPM have ads?

Both Spiny Ninja and OPM show ads.

### Which is updated more often, Spiny Ninja or OPM?

Spiny Ninja ships an update weekly, and OPM every 2 weeks. Most recently, Spiny Ninja was updated on October 25, 2026 and OPM on October 25, 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.*