# Serene vs Decoder Ring · Secret Codes

The clearest difference is in-app purchases: Serene at none against Decoder Ring · Secret Codes's 3. Serene also leads on ads (none vs shown) and iOS requirement (16 vs 26.4). On price, update cadence and device support there is nothing between them.

Both are free to download. Decoder Ring · Secret Codes sells 3 in-app purchases, starting at $9.99 per year. Serene asks for nothing beyond the download.

Serene ships an update monthly, Decoder Ring · Secret Codes every 5 weeks. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Serene | Decoder Ring · Secret Codes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 24 MB | 16 MB |
| Requires iOS | **16** | 26.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [ANH PHAN](https://appshunter.io/developer/1887758254) | [BRUCE HOWARD WOLFSON](https://appshunter.io/developer/1896685833) |

## What reviewers say

### Serene

[App page](https://appshunter.io/ios/app/serene-interest-talk/id6761092378)

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

**In-app purchases:** none


### Decoder Ring · Secret Codes

[App page](https://appshunter.io/ios/app/decoder-ring-secret-codes/id6769765354)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decoder Ring Auto-Shift | $9.99 | per year |
| Decoder Ring Plus | $2.99 | one-time |
| Decoder Ring Contacts | $4.99 | one-time |


## Frequently asked questions

### Is Serene free?

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

### Is Decoder Ring · Secret Codes free?

Decoder Ring · Secret Codes is free to download, with in-app purchases available.

### Do Serene or Decoder Ring · Secret Codes have ads?

Decoder Ring · Secret Codes shows ads; Serene does not.

### Which is updated more often, Serene or Decoder Ring · Secret Codes?

Serene ships an update monthly, and Decoder Ring · Secret Codes every 5 weeks. Most recently, Serene was updated on October 5, 2026 and Decoder Ring · Secret Codes on September 29, 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.*