# Decoder Terminal vs Mystery Grid

The clearest difference is update cadence: Decoder Terminal at daily against Mystery Grid's every 10 days. 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.

Decoder Terminal ships an update daily, Mystery Grid every 10 days. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Decoder Terminal | Mystery Grid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (5 ratings)](https://appshunter.io/ios/app/mystery-grid-murder-sudoku/id6790854374/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 10 days |
| Monetization | — | Ad-supported |
| Size | 6 MB | 56 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Twinning Trails LLC](https://appshunter.io/developer/1853666666) | [Jesus Soria](https://appshunter.io/developer/1807777737) |

## What reviewers say

### Decoder Terminal

[App page](https://appshunter.io/ios/app/decoder-terminal/id6777221949)

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

**In-app purchases:** none


### Mystery Grid

[App page](https://appshunter.io/ios/app/mystery-grid-murder-sudoku/id6790854374)

Engage in a murder-mystery logic puzzle where you deduce the killer's identity and location by solving grid-based clues. This game offers a pure logic experience with a detective aesthetic, playable offline at your own pace.

**Highlights:** Murder-mystery logic puzzles, Deductive reasoning gameplay, Case-file aesthetic, Offline play, Smart hint system, Themed chapters

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

**In-app purchases:** none


## Frequently asked questions

### Is Decoder Terminal free?

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

### Is Mystery Grid free?

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

### Do Decoder Terminal or Mystery Grid have ads?

Both Decoder Terminal and Mystery Grid show ads.

### Which is updated more often, Decoder Terminal or Mystery Grid?

Decoder Terminal ships an update daily, and Mystery Grid every 10 days. Most recently, Decoder Terminal was updated on October 8, 2026 and Mystery Grid on October 14, 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.*