# KnightVision vs Chess Engine

The clearest difference is update cadence: Chess Engine at every 5 days against KnightVision's every 3 weeks. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. KnightVision sells 4 in-app purchases, starting at $4.99 per month and Chess Engine sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for KnightVision against 5.0 for Chess Engine. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

KnightVision ships an update every 3 weeks, Chess Engine every 5 days. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | KnightVision | Chess Engine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/knightvision-chess/id6758964678/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/chess-engine-chessfox/id6762020729/reviews) |
| Number of ratings | **3** | 2 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 143 MB | 143 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Abraham Obubo](https://appshunter.io/developer/1870492213) | [Abdullah Anwar](https://appshunter.io/developer/1891791203) |

## What reviewers say

### 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 |


### Chess Engine

[App page](https://appshunter.io/ios/app/chess-engine-chessfox/id6762020729)

Instantly analyze any chess board by scanning it to find the best next move. This tool uses advanced AI and a powerful chess engine to help you study, train, and improve your game. Digitize diagrams from books or review tournament games with confidence.

**Highlights:** Scan physical or digital chess boards, Instantly find the next best move, AI board recognition, Stockfish engine analysis, Digitize diagrams from books, Save and export to FEN/PGN

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessScan Pro Weekly | $4.99 | per 7 days |
| ChessFox Pro Weekly | $4.99 | per 7 days |
| ChessFox Pro Annually | $19.99 | per year |
| ChessFox Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is KnightVision free?

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

### Is Chess Engine free?

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

### Which has better reviews, KnightVision or Chess Engine?

KnightVision and Chess Engine are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do KnightVision or Chess Engine have ads?

Neither KnightVision nor Chess Engine shows ads.

### Which is updated more often, KnightVision or Chess Engine?

KnightVision ships an update every 3 weeks, and Chess Engine every 5 days. Most recently, KnightVision was updated on October 15, 2026 and Chess Engine on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*