# Decoder vs Decoder Terminal

The clearest difference is ads: Decoder at none against Decoder Terminal's shown. Decoder also leads on iOS requirement (7.0 vs 18.6). Decoder Terminal's advantage is update cadence (daily vs every 7 months). On price, 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 ships an update every 7 months, Decoder Terminal daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | Decoder | Decoder Terminal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.2 (5 ratings)](https://appshunter.io/ios/app/decoder/id294816947/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Free | — |
| Size | 1 MB | 6 MB |
| Requires iOS | **7.0** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Edwin Hou](https://appshunter.io/developer/292240393) | [Twinning Trails LLC](https://appshunter.io/developer/1853666666) |

## What reviewers say

### Decoder

[App page](https://appshunter.io/ios/app/decoder/id294816947)

This app assists players in solving the Mastermind logic game. It helps narrow down possible solutions by analyzing your guesses and their scores. Continue inputting your game progress until only one solution remains.

**Highlights:** Mastermind game solver, Input guesses and scores, Reduces possible solutions, Guides to single solution

**Features:** macOS Compatibility

**In-app purchases:** none


### Decoder Terminal

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Decoder free?

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

### Is Decoder Terminal free?

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

### Do Decoder or Decoder Terminal have ads?

Decoder Terminal shows ads; Decoder does not.

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

Decoder ships an update every 7 months, and Decoder Terminal daily. Most recently, Decoder was updated on October 31, 2026 and Decoder Terminal on October 31, 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.*