# Blitz Keys vs KnightVision

The clearest difference is price: KnightVision at Free against Blitz Keys's $3.99. Blitz Keys's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

KnightVision is free to download; Blitz Keys costs $3.99 up front. KnightVision sells 4 in-app purchases, starting at $4.99 per month. Blitz Keys asks for nothing beyond the download.

## The numbers

| Metric | Blitz Keys | KnightVision |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/knightvision-chess/id6758964678/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 3 MB | 145 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GEORGE TOHME](https://appshunter.io/developer/1801086895) | [Abraham Obubo](https://appshunter.io/developer/1870492213) |

## What reviewers say

### Blitz Keys

[App page](https://appshunter.io/ios/app/blitz-keys/id6743063140)

**In-app purchases:** none


### KnightVision

[App page](https://appshunter.io/ios/app/knightvision-chess/id6758964678)

This app helps chess players digitize and analyze their games. It uses AR to scan physical boards, OCR to read scoresheets, and integrates with online platforms for a comprehensive chess experience.

**Highlights:** AR board scanning, Scoresheet OCR, Live game recording, Stockfish engine analysis, Chess.com & Lichess import, Tactical puzzles, Rating tracking

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knight Monthly | $4.99 | per month |
| King Monthly | $12.99 | per month |
| Knight Yearly | $34.99 | per year |
| King Yearly | $99.99 | per year |


## Frequently asked questions

### Is Blitz Keys free?

Blitz Keys costs $3.99, with no in-app purchases.

### Is KnightVision free?

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

### Do Blitz Keys or KnightVision have ads?

Neither Blitz Keys nor KnightVision shows ads.

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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.*