# Spot the difference vs Poly Full

The clearest difference is update cadence: Poly Full at every 5 days against Spot the difference's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Spot the difference ships an update every 9 months, Poly Full every 5 days. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Spot the difference | Poly Full |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/spot-the-difference-kanji/id1478414627/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 9 months | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 54 MB | 169 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HAREPPO](https://appshunter.io/developer/604325074) | [KOHEI OKADA](https://appshunter.io/developer/1664622844) |

## What reviewers say

### Spot the difference

[App page](https://appshunter.io/ios/app/spot-the-difference-kanji/id1478414627)

This game challenges you to find the single different kanji character among a group within a time limit. It offers multiple difficulty levels, from beginner to advanced, and awards stars based on your performance. It's ideal for brain training and improving concentration.

**Highlights:** Find different kanji, Time limit challenges, Multi-level difficulty, Score evaluation, Brain training, Improve concentration

**Features:** Vision Pro support

**In-app purchases:** none


### Poly Full

[App page](https://appshunter.io/ios/app/poly-full-spot-the-difference/id6742448835)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spot the difference free?

Spot the difference is free to download, with no in-app purchases.

### Is Poly Full free?

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

### Do Spot the difference or Poly Full have ads?

Both Spot the difference and Poly Full show ads.

### Which is updated more often, Spot the difference or Poly Full?

Spot the difference ships an update every 9 months, and Poly Full every 5 days. Most recently, Spot the difference was updated on November 12, 2026 and Poly Full on November 8, 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.*