# Poly Full vs Where's Kohaku? Hidden Object

The clearest difference is in-app purchases: Poly Full at none against Where's Kohaku? Hidden Object's 2. Poly Full also leads on iOS requirement (12.0 vs 18.4). Where's Kohaku? Hidden Object's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Where's Kohaku? Hidden Object sells 2 in-app purchases, starting at $0.99 per year. Poly Full asks for nothing beyond the download.

Poly Full ships an update every 5 days, Where's Kohaku? Hidden Object every 10 days. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Poly Full | Where's Kohaku? Hidden Object |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 10 days |
| Size | 169 MB | 156 MB |
| Requires iOS | **12.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KOHEI OKADA](https://appshunter.io/developer/1664622844) | [Metalels Studio](https://appshunter.io/developer/1838000995) |

## What reviewers say

### Poly Full

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Where's Kohaku? Hidden Object

[App page](https://appshunter.io/ios/app/wheres-kohaku-hidden-object/id6761353795)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $0.99 | per year |
| Full Access | $1.99 | one-time |


## Frequently asked questions

### Is Poly Full free?

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

### Is Where's Kohaku? Hidden Object free?

Where's Kohaku? Hidden Object is free to download, with in-app purchases available.

### Do Poly Full or Where's Kohaku? Hidden Object have ads?

Poly Full shows ads; Where's Kohaku? Hidden Object does not.

### Which is updated more often, Poly Full or Where's Kohaku? Hidden Object?

Poly Full ships an update every 5 days, and Where's Kohaku? Hidden Object every 10 days. Most recently, Poly Full was updated on September 30, 2026 and Where's Kohaku? Hidden Object on October 12, 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.*