# EDGE21 vs MindSpark

The clearest difference is in-app purchases: EDGE21 at none against MindSpark's 1. EDGE21 also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. MindSpark sells 1 one-off in-app purchase. EDGE21 asks for nothing beyond the download.

EDGE21 ships an update fortnightly, MindSpark every 3 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | EDGE21 | MindSpark |
| --- | --- | --- |
| 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** | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| 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) | [MIZOU, CO., LTD.](https://appshunter.io/developer/1542553141) |

## 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


### MindSpark

[App page](https://appshunter.io/ios/app/mindspark-brain-age-test/id6789515695)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is EDGE21 free?

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

### Is MindSpark free?

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

### Do EDGE21 or MindSpark have ads?

MindSpark shows ads; EDGE21 does not.

### Which is updated more often, EDGE21 or MindSpark?

EDGE21 ships an update fortnightly, and MindSpark every 3 weeks. Most recently, EDGE21 was updated on October 24, 2026 and MindSpark on October 28, 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.*