# Chess Studio vs Aluminum Quick Reference

The clearest difference is review sentiment: Chess Studio at 60% against Aluminum Quick Reference's 0%. Chess Studio also leads on update cadence (every 2 months vs every 7 months). Aluminum Quick Reference's advantage is in-app purchases (none vs 23) and iOS requirement (6.0 vs 9.0). On price, ads and device support there is nothing between them.

Both are free to download. Chess Studio sells 23 one-off in-app purchases. Aluminum Quick Reference asks for nothing beyond the download.

Chess Studio ships an update every 2 months, Aluminum Quick Reference every 7 months. The most recent releases landed on September 9, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Chess Studio | Aluminum Quick Reference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aluminum-quick-reference/id923924594/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **60.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 3 MB |
| Requires iOS | 9.0 | **6.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gambit Publications](https://appshunter.io/developer/689948994) | [PFI Knowledge Solutions Ltd](https://appshunter.io/developer/702178176) |

## What reviewers say

### Chess Studio

[App page](https://appshunter.io/ios/app/chess-studio/id689948991)

Read chess books and instantly play through moves on screen. This app allows you to interact with chess e-books, automatically scrolling text and displaying positions on a board. Navigate variations, search content, and customize your reading experience.

**Highlights:** Play over moves on screen, Automatic text scrolling, Tap moves to display position, Navigate complex variations, Searchable content, Choice of layout options

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

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gambit Free Samples | Free | one-time |
| How to Beat Your Dad at Chess | $9.99 | one-time |
| Win with the Stonewall Dutch | $9.99 | one-time |
| 50 Essential Chess Lessons | $10.99 | one-time |
| Idiot-Proof Chess Repertoire | $10.99 | one-time |
| Win with the London System | $11.99 | one-time |
| Learn Chess Tactics | $11.99 | one-time |
| Understanding the Chess Openings | $11.99 | one-time |
| A Simple Chess Opening Repertoire for White | $11.99 | one-time |
| Understanding Chess Endgames | $13.99 | one-time |
| Understanding Chess Middlegames | $13.99 | one-time |
| Understanding Chess Move by Move | $13.99 | one-time |
| Secrets of Modern Chess Strategy | $13.99 | one-time |
| Mastering the Chess Openings Volume 1 | $13.99 | one-time |
| Mastering the Chess Openings Volume 2 | $13.99 | one-time |
| A Strategic Chess Opening Repertoire for White | $14.99 | one-time |
| John Nunn's Chess Course | $14.99 | one-time |
| Fundamental Chess Openings | $14.99 | one-time |
| Fundamental Chess Endings | $14.99 | one-time |
| How to Play Chess Endgames | $14.99 | one-time |
| Nunn's Chess Endings Volume 1 | $14.99 | one-time |
| Nunn's Chess Endings Volume 2 | $14.99 | one-time |
| Mammoth Book of Greatest Games | $14.99 | one-time |


### Aluminum Quick Reference

[App page](https://appshunter.io/ios/app/aluminum-quick-reference/id923924594)

Access essential data for over 200 aluminum alloy designations and temper combinations. View mechanical properties, physical properties, and chemical composition limits. This reference is useful on its own or with a larger database.

**Highlights:** Data on 200+ aluminum alloy designations, Mechanical and physical properties (US Customary & SI Metric), Chemical composition limits, Typical uses by alloy-temper, Companion to ASM Alloy Center Database

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chess Studio free?

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

### Is Aluminum Quick Reference free?

Aluminum Quick Reference is free to download, with no in-app purchases.

### Do Chess Studio or Aluminum Quick Reference have ads?

Neither Chess Studio nor Aluminum Quick Reference shows ads.

### Which is updated more often, Chess Studio or Aluminum Quick Reference?

Chess Studio ships an update every 2 months, and Aluminum Quick Reference every 7 months. Most recently, Chess Studio was updated on September 9, 2026 and Aluminum Quick Reference on June 10, 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.*