# Openings Mastermind vs ChessSight

The clearest difference is in-app purchases: Openings Mastermind at none against ChessSight's 2. ChessSight's advantage is update cadence (daily vs fortnightly) and iOS requirement (15.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. ChessSight sells 2 in-app purchases, starting at $3.99 per month. Openings Mastermind asks for nothing beyond the download.

Openings Mastermind ships an update fortnightly, ChessSight daily. The most recent releases landed on September 19, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Openings Mastermind | ChessSight |
| --- | --- | --- |
| 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 | **Daily** |
| Monetization | Free | — |
| Size | 88 MB | 14 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Christian Heise](https://appshunter.io/developer/1632898424) | [ABDULLAH ALISMAIL](https://appshunter.io/developer/6773116846) |

## 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


### ChessSight

[App page](https://appshunter.io/ios/app/chesssight/id6773116514)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessSight Premium Monthly | $3.99 | per month |
| ChessSight Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Openings Mastermind free?

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

### Is ChessSight free?

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

### Do Openings Mastermind or ChessSight have ads?

Neither Openings Mastermind nor ChessSight shows ads.

### Which is updated more often, Openings Mastermind or ChessSight?

Openings Mastermind ships an update fortnightly, and ChessSight daily. Most recently, Openings Mastermind was updated on September 19, 2026 and ChessSight on September 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.*