# Chess Openings vs Vectron Math

The clearest difference is update cadence: Chess Openings at weekly against Vectron Math's fortnightly. Vectron Math's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Chess Openings sells 6 in-app purchases, starting at $5.99 per 7 days and Vectron Math sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Chess Openings ships an update weekly, Vectron Math fortnightly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Chess Openings | Vectron Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (22 ratings)](https://appshunter.io/ios/app/chess-openings-chessmate/id6780793638/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 150 MB | 126 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [wyverselabs](https://appshunter.io/developer/1895432648) | [TecHub](https://appshunter.io/developer/6792161354) |

## What reviewers say

### Chess Openings

[App page](https://appshunter.io/ios/app/chess-openings-chessmate/id6780793638)

Master chess openings with interactive practice and clear explanations. Turn opening theory into board memory by studying curated lines and challenging your recall until moves become instinctive. Ideal for online players seeking to solidify their early game strategy.

**Highlights:** Study curated opening lines, Practice from board positions, Review learned lines, Challenge recall, Track repertoire progress, Clear move explanations

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chessmate Premium Weekly | $5.99 | per 7 days |
| Chessmate Premium Monthly | $7.99 | per month |
| Premium Yearly Offer | $24.49 | per year |
| Chessmate Premium Yearly | $34.99 | per year |
| Chessmate Premium Yearly | $34.99 | per year |
| Chessmate Premium Lifetime | $79.99 | one-time |


### Vectron Math

[App page](https://appshunter.io/ios/app/vectron-math/id6792161352)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly VIP Access | $3.99 | per month |
| Annual VIP Access | $44.99 | per year |
| Taaffeite 80 | $1.99 | one-time |
| Taaffeite 450 | $3.99 | one-time |
| Taaffeite 1000 | $8.99 | one-time |


## Frequently asked questions

### Is Chess Openings free?

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

### Is Vectron Math free?

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

### Do Chess Openings or Vectron Math have ads?

Both Chess Openings and Vectron Math show ads.

### Which is updated more often, Chess Openings or Vectron Math?

Chess Openings ships an update weekly, and Vectron Math fortnightly. Most recently, Chess Openings was updated on November 7, 2026 and Vectron Math 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.*