# DuoLink vs Secret Code

The clearest difference is ads: Secret Code at none against DuoLink's shown. DuoLink's advantage is iOS requirement (15.0 vs 18.0). On price, update cadence, 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.

DuoLink ships an update every 3 days, Secret Code every 2 days. Both last shipped on October 2, 2026.

## The numbers

| Metric | DuoLink | Secret Code |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 85 MB | 24 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Vlchez Domnguez](https://appshunter.io/developer/1499623365) | [Jose Manuel Malagn Alba](https://appshunter.io/developer/1788896343) |

## What reviewers say

### DuoLink

[App page](https://appshunter.io/ios/app/duolink/id6755592708)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Secret Code

[App page](https://appshunter.io/ios/app/secret-code-party-game/id6756663613)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DuoLink free?

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

### Is Secret Code free?

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

### Do DuoLink or Secret Code have ads?

DuoLink shows ads; Secret Code does not.

### Which is updated more often, DuoLink or Secret Code?

DuoLink ships an update every 3 days, and Secret Code every 2 days. Most recently, DuoLink was updated on October 2, 2026 and Secret Code on October 2, 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.*