# Discovery World Hidden Object vs Chain Prisoners

The clearest difference is in-app purchases: Chain Prisoners at none against Discovery World Hidden Object's 2. Chain Prisoners also leads on update cadence (daily vs every 63 months). Discovery World Hidden Object's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Discovery World Hidden Object sells 2 one-off in-app purchases. Chain Prisoners asks for nothing beyond the download.

Discovery World Hidden Object ships an update every 63 months, Chain Prisoners daily. The most recent releases landed on October 26, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Discovery World Hidden Object | Chain Prisoners |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 63 months | **Daily** |
| Size | 125 MB | 115 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dipak Keshariya](https://appshunter.io/developer/654456671) | [DK Bilgi Teknolojileri](https://appshunter.io/developer/1510149782) |

## What reviewers say

### Discovery World Hidden Object

[App page](https://appshunter.io/ios/app/discovery-world-hidden-object/id1035583253)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RemoveAd From FullGame | $0.99 | one-time |
| Get 20 Hint For All Level | $0.99 | one-time |


### Chain Prisoners

[App page](https://appshunter.io/ios/app/chain-prisoners/id6450991739)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Discovery World Hidden Object free?

Discovery World Hidden Object is free to download, with in-app purchases available.

### Is Chain Prisoners free?

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

### Do Discovery World Hidden Object or Chain Prisoners have ads?

Chain Prisoners shows ads; Discovery World Hidden Object does not.

### Which is updated more often, Discovery World Hidden Object or Chain Prisoners?

Discovery World Hidden Object ships an update every 63 months, and Chain Prisoners daily. Most recently, Discovery World Hidden Object was updated on October 26, 2026 and Chain Prisoners on October 10, 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.*