# EDGE21 vs Block Square

The clearest difference is in-app purchases: EDGE21 at none against Block Square's 3. EDGE21 also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Block Square sells 3 one-off in-app purchases. EDGE21 asks for nothing beyond the download.

EDGE21 ships an update fortnightly, Block Square every 2 months. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | EDGE21 | Block Square |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/edge21/id6757775188/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 24 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mark Baumrind](https://appshunter.io/developer/1868868237) | [LUIZ FERNANDO DOS SANTOS ROSEIRO](https://appshunter.io/developer/6785039884) |

## What reviewers say

### EDGE21

[App page](https://appshunter.io/ios/app/edge21/id6757775188)

Master blackjack strategy with this educational tool. Learn basic strategy, practice card counting, and identify mistakes with detailed explanations and engaging game modes. Designed for entertainment and skill improvement.

**Highlights:** Learn Basic Strategy, Speedrun Mode, Boss Hand Mode, Card Counting Practice, Mistake Identification, Detailed Explanations

**Features:** macOS Compatibility

**In-app purchases:** none


### Block Square

[App page](https://appshunter.io/ios/app/block-square-block-puzzle/id6785039882)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espresso | $0.99 | one-time |
| Coffee | $1.99 | one-time |
| Coffee Large | $4.99 | one-time |


## Frequently asked questions

### Is EDGE21 free?

EDGE21 is free to download, with no in-app purchases.

### Is Block Square free?

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

### Do EDGE21 or Block Square have ads?

Neither EDGE21 nor Block Square shows ads.

### Which is updated more often, EDGE21 or Block Square?

EDGE21 ships an update fortnightly, and Block Square every 2 months. Most recently, EDGE21 was updated on October 24, 2026 and Block Square on October 6, 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.*