# Ninja USA vs Find Diff

The clearest difference is rating: Find Diff at 4.7 against Ninja USA's 2.8. Find Diff also leads on in-app purchases (none vs 1) and update cadence (every 3 days vs every 3 months). Ninja USA's advantage is ads (none vs shown) and iOS requirement (8.0 vs 10.0). On price, ratings volume and device support there is nothing between them.

Both are free to download. Ninja USA sells 1 one-off in-app purchase. Find Diff asks for nothing beyond the download.

Find Diff holds the better App Store score, 4.7 against 2.8. Both are backed by a comparable volume of ratings — 10 and 6 respectively.

Ninja USA ships an update every 3 months, Find Diff every 3 days. The most recent releases landed on October 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Ninja USA | Find Diff |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (10 ratings)](https://appshunter.io/ios/app/ninja-usa-super-buster/id462726758/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/find-diff-find-differences/id6502935113/reviews)** |
| Number of ratings | **10** | 6 |
| Positive reviews | 72.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 76 MB | 252 MB |
| Requires iOS | **8.0** | 10.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robert Siladji](https://appshunter.io/developer/319677888) | [Beijing Shuidi Huyu Technology Co., Ltd.](https://appshunter.io/developer/1462564247) |

## What reviewers say

### Ninja USA

[App page](https://appshunter.io/ios/app/ninja-usa-super-buster/id462726758)

Engage in a fast-paced arcade-style game where you play as a ninja battling waves of attacking balls. Utilize ninja skills, kunai, and shurikens across numerous levels to save the country. Enjoy colorful graphics and addictive gameplay.

**Highlights:** 78 challenging levels, 12 bonus types, 3 ninja weapons, Unique level graphics, Online leaderboards, Retina display support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 👍 Addictive gameplay
- 👍 Fun and entertaining
- 👍 Good time killer
- 👍 Simple controls
- 👍 Nice graphics

**What reviewers complain about**

- 🐛 Repetitive gameplay
- 🐛 Controls can be sticky/jam
- 🐛 Graphics are just fair/basic
- 🐛 Not very original
- 🐛 Can get boring after a while

**Reported bugs**

- On-screen controls get in the way
- Arrow keys jam/stick
- Movement doesn't pick up side-to-side

**Requested features**

- More levels
- Tutorial on items
- Fix ad placement


### Find Diff

[App page](https://appshunter.io/ios/app/find-diff-find-differences/id6502935113)

Engage your keen eyes in a vibrant cartoon world to spot subtle differences in beautifully crafted scenes. This casual game offers a delightful challenge for all ages, sharpening observational skills with each discovery. Prepare for a giggle-inducing journey through illustrated worlds.

**Highlights:** Spot subtle differences, Beautifully crafted scenes, Casual gameplay, Sharpen observational skills, Illustrated worlds

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ninja USA free?

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

### Is Find Diff free?

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

### Which has better reviews, Ninja USA or Find Diff?

Find Diff is rated higher. Ninja USA averages 2.8 out of 5 from 10 ratings, while Find Diff averages 4.7 from 6 ratings.

### Do Ninja USA or Find Diff have ads?

Find Diff shows ads; Ninja USA does not.

### Which is updated more often, Ninja USA or Find Diff?

Ninja USA ships an update every 3 months, and Find Diff every 3 days. Most recently, Ninja USA was updated on October 6, 2026 and Find Diff on September 24, 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.*