# Decoder vs MindGrid

The clearest difference is review sentiment: MindGrid at 100% against Decoder's 0%. MindGrid also leads on rating (4.8 vs 1.2). Decoder's advantage is in-app purchases (none vs 4) and iOS requirement (7.0 vs 17.5). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. MindGrid sells 4 one-off in-app purchases. Decoder asks for nothing beyond the download.

MindGrid holds the better App Store score, 4.8 against 1.2. Both are backed by a comparable volume of ratings — 5 and 5 respectively. Written reviews point the same way: 0% of Decoder's written reviews are positive against 100% of MindGrid's.

Decoder ships an update every 7 months, MindGrid every 9 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Decoder | MindGrid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.2 (5 ratings)](https://appshunter.io/ios/app/decoder/id294816947/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/mindgrid-a-logic-puzzle/id1603857097/reviews)** |
| Number of ratings | 5 | 5 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 9 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 8 MB |
| Requires iOS | **7.0** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Edwin Hou](https://appshunter.io/developer/292240393) | [Lukasz Rutkowski](https://appshunter.io/developer/1561590120) |

## 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


### MindGrid

[App page](https://appshunter.io/ios/app/mindgrid-a-logic-puzzle/id1603857097)

A logic puzzle game where you deduce the correct placement of colored tiles based on row clues. It offers hundreds of levels, daily challenges, and Game Center integration for a brain-teasing experience.

**Highlights:** 360 levels across three difficulty modes, Mark tiles and exclude colors, Unlockable hints for incorrect guesses, Game Center integration (leaderboards, achievements, sync), Daily Game Mode with new levels

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Keys | $0.99 | one-time |
| 25 Keys | $1.99 | one-time |
| 50 Keys | $2.99 | one-time |
| Daily Game Mode | $4.99 | one-time |


## Frequently asked questions

### Is Decoder free?

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

### Is MindGrid free?

MindGrid is free to download, with in-app purchases available.

### Which has better reviews, Decoder or MindGrid?

MindGrid is rated higher. Decoder averages 1.2 out of 5 from 5 ratings, while MindGrid averages 4.8 from 5 ratings.

### Do Decoder or MindGrid have ads?

Neither Decoder nor MindGrid shows ads.

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

Decoder ships an update every 7 months, and MindGrid every 9 months. Most recently, Decoder was updated on October 20, 2026 and MindGrid on October 24, 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.*