# Openings Mastermind vs Hardcore Blindfold Chess

The clearest difference is in-app purchases: Openings Mastermind at none against Hardcore Blindfold Chess's 3. Hardcore Blindfold Chess's advantage is iOS requirement (16.4 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Hardcore Blindfold Chess sells 3 in-app purchases, starting at $4.99 per month. Openings Mastermind asks for nothing beyond the download.

Openings Mastermind ships an update fortnightly, Hardcore Blindfold Chess every 10 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Openings Mastermind | Hardcore Blindfold Chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/openings-mastermind/id6448386251/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free | — |
| Size | 88 MB | 58 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Heise](https://appshunter.io/developer/1632898424) | [Click Boreal Unipessoal LDA](https://appshunter.io/developer/6819825211) |

## What reviewers say

### Openings Mastermind

[App page](https://appshunter.io/ios/app/openings-mastermind/id6448386251)

Master chess openings with this app. Import studies, explore with advanced engines, and practice specific lines through repetition. Track your progress and improve your game.

**Highlights:** Import Lichess Studies or PGNs, Explore openings with Stockfish 15, Practice openings by repetition, Smart practice queue, Track learning progress

**Features:** macOS Compatibility

**In-app purchases:** none


### Hardcore Blindfold Chess

[App page](https://appshunter.io/ios/app/hardcore-blindfold-chess/id6811651174)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hardcore Chess Pro Monthly | $4.99 | per month |
| Hardcore Chess Pro | $29.99 | per year |
| Hardcore Chess Pro | $59.99 | one-time |


## Frequently asked questions

### Is Openings Mastermind free?

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

### Is Hardcore Blindfold Chess free?

Hardcore Blindfold Chess is free to download, with in-app purchases available.

### Do Openings Mastermind or Hardcore Blindfold Chess have ads?

Neither Openings Mastermind nor Hardcore Blindfold Chess shows ads.

### Which is updated more often, Openings Mastermind or Hardcore Blindfold Chess?

Openings Mastermind ships an update fortnightly, and Hardcore Blindfold Chess every 10 days. Most recently, Openings Mastermind was updated on November 3, 2026 and Hardcore Blindfold Chess 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.*