# Chess Elo Calculator vs Blindfold Chess Trainer

The clearest difference is rating: Chess Elo Calculator at 5.0 against Blindfold Chess Trainer's 4.0. Chess Elo Calculator also leads on in-app purchases (none vs 6) and ads (none vs shown). Blindfold Chess Trainer's advantage is update cadence (fortnightly vs every 5 months). On price, review sentiment, ratings volume and device support there is nothing between them.

Both are free to download. Blindfold Chess Trainer sells 6 in-app purchases, starting at $2.99 per month. Chess Elo Calculator asks for nothing beyond the download.

Chess Elo Calculator holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Chess Elo Calculator ships an update every 5 months, Blindfold Chess Trainer fortnightly. The most recent releases landed on July 4, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Chess Elo Calculator | Blindfold Chess Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chess-elo-calculator/id1291775237/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/blindfold-chess-trainer/id6745624258/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 38 MB | 138 MB |
| Requires iOS | **7.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Mastermind Computing](https://appshunter.io/developer/1251540276) | [Dawid Wrzesinski](https://appshunter.io/developer/1812701337) |

## What reviewers say

### Chess Elo Calculator

[App page](https://appshunter.io/ios/app/chess-elo-calculator/id1291775237)

Calculate FIDE Elo ratings using the latest algorithms for precise results. This tool is designed for chess players who need an accurate rating calculation.

**Highlights:** FIDE Elo rating calculation, Recent algorithms, Precise calculation, For chess players

**Features:** macOS Compatibility

**In-app purchases:** none


### Blindfold Chess Trainer

[App page](https://appshunter.io/ios/app/blindfold-chess-trainer/id6745624258)

Sharpen your chess visualization and calculation skills without seeing the board. This app offers puzzles, AI challenges, and square mastery to improve your game. It's designed for players of all levels to enhance their internal board representation.

**Highlights:** Master all 64 squares, Train piece movement patterns, 5,000+ blindfold puzzles, Play vs Stockfish AI, Voice mode for hands-free moves, 100% offline play

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espresso Subscription | $2.99 | per month |
| Flat White Subscription | $5.99 | per 3 months |
| Latte Subscription | $8.99 | per 6 months |
| Espresso | $3.99 | one-time |
| Flat White | $6.99 | one-time |
| Latte | $9.99 | one-time |


## Frequently asked questions

### Is Chess Elo Calculator free?

Chess Elo Calculator is free to download, with no in-app purchases.

### Is Blindfold Chess Trainer free?

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

### Which has better reviews, Chess Elo Calculator or Blindfold Chess Trainer?

Chess Elo Calculator is rated higher. Chess Elo Calculator averages 5.0 out of 5 from 1 ratings, while Blindfold Chess Trainer averages 4.0 from 2 ratings.

### Do Chess Elo Calculator or Blindfold Chess Trainer have ads?

Blindfold Chess Trainer shows ads; Chess Elo Calculator does not.

### Which is updated more often, Chess Elo Calculator or Blindfold Chess Trainer?

Chess Elo Calculator ships an update every 5 months, and Blindfold Chess Trainer fortnightly. Most recently, Chess Elo Calculator was updated on July 4, 2026 and Blindfold Chess Trainer on September 21, 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.*