# Chess Elo Calculator vs SaioApp

The clearest difference is price: Chess Elo Calculator at Free against SaioApp's $18.99. Chess Elo Calculator also leads on in-app purchases (none vs 1) and review sentiment (100% vs 67%). SaioApp's advantage is update cadence (every 2 weeks vs every 5 months). On rating, ratings volume, ads and device support there is nothing between them.

Chess Elo Calculator is free to download; SaioApp costs $18.99 up front. SaioApp sells 1 one-off in-app purchase. Chess Elo Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Chess Elo Calculator against 5.0 for SaioApp. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 100% of Chess Elo Calculator's written reviews are positive against 67% of SaioApp's.

Chess Elo Calculator ships an update every 5 months, SaioApp every 2 weeks. The most recent releases landed on July 4, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Chess Elo Calculator | SaioApp |
| --- | --- | --- |
| Price | **Free** | $18.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/chess-elo-calculator/id1291775237/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/saioapp/id1413881048/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 38 MB | 263 MB |
| Requires iOS | **7.0** | 10.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mastermind Computing](https://appshunter.io/developer/1251540276) | [Benedetto Romano](https://appshunter.io/developer/1413881047) |

## 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


### SaioApp

[App page](https://appshunter.io/ios/app/saioapp/id1413881048)

Master the game of Othello with the world's strongest engine. Analyze moves, study player strategies, and access a vast library of game data. Designed for professionals seeking the ultimate competitive edge.

**Highlights:** Play against the strongest Othello engine, Analyze best and all moves, Access WThor games archive, Study specific players, Endgame Tutor mode, In-app purchase for large move library, Study mode for openings

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Saio Full Library | $44.99 | one-time |


## Frequently asked questions

### Is Chess Elo Calculator free?

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

### Is SaioApp free?

SaioApp costs $18.99, and also offers in-app purchases.

### Which has better reviews, Chess Elo Calculator or SaioApp?

Chess Elo Calculator and SaioApp are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Chess Elo Calculator or SaioApp have ads?

Neither Chess Elo Calculator nor SaioApp shows ads.

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

Chess Elo Calculator ships an update every 5 months, and SaioApp every 2 weeks. Most recently, Chess Elo Calculator was updated on July 4, 2026 and SaioApp on September 9, 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.*