# BlueChess vs Equazzler S

The clearest difference is in-app purchases: BlueChess at none against Equazzler S's 1. BlueChess also leads on ads (none vs shown). Equazzler S's advantage is update cadence (every 5 days vs every 4 months) and iOS requirement (12.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. Equazzler S sells 1 one-off in-app purchase. BlueChess asks for nothing beyond the download.

BlueChess ships an update every 4 months, Equazzler S every 5 days. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | BlueChess | Equazzler S |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bluechess/id620176785/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 55 MB | 81 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GreenChess.com](https://appshunter.io/developer/532381678) | [Awobaz Technologies Inc.](https://appshunter.io/developer/568093558) |

## What reviewers say

### BlueChess

[App page](https://appshunter.io/ios/app/bluechess/id620176785)

Engage in strategic gameplay with powerful chess engines. Choose between the BlueChess engine or the highly-rated Stockfish engine for your matches.

**Highlights:** Play against BlueChess engine, Play against Stockfish engine, Strategic gameplay, Free to play

**In-app purchases:** none


### Equazzler S

[App page](https://appshunter.io/ios/app/equazzler-s-subtraction/id6467409444)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |


## Frequently asked questions

### Is BlueChess free?

BlueChess is free to download, with no in-app purchases.

### Is Equazzler S free?

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

### Do BlueChess or Equazzler S have ads?

Equazzler S shows ads; BlueChess does not.

### Which is updated more often, BlueChess or Equazzler S?

BlueChess ships an update every 4 months, and Equazzler S every 5 days. Most recently, BlueChess was updated on October 23, 2026 and Equazzler S on October 19, 2026.

---

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