# Blackjack vs Blindspot Protocol

The clearest difference is rating: Blackjack at 4.7 against Blindspot Protocol's 2.0. Blackjack also leads on ratings volume (12 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Blackjack sells 3 in-app purchases, starting at $1.99 per 7 days and Blindspot Protocol sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Blackjack holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Blackjack has 12 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 28, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Blackjack | Blindspot Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/blackjack-learn-practice/id6757376628/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/blindspot-protocol/id6758043917/reviews) |
| Number of ratings | **12** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 11 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Robin Kanatzar](https://appshunter.io/developer/1209848116) | [Fernan Ochoa Amador](https://appshunter.io/developer/1868704153) |

## What reviewers say

### Blackjack

[App page](https://appshunter.io/ios/app/blackjack-learn-practice/id6757376628)

Master blackjack strategy and card counting with progressive lessons and real-time feedback. Learn to calculate house edge and make mathematically correct plays to beat the dealer.

**Highlights:** 18 progressive strategy lessons, Full Hi-Lo card counting course, EV calculator for house edge analysis, Real-time feedback on every hand, Realistic casino gameplay simulation, Detailed progress tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $1.99 | per 7 days |
| Pro Monthly | $3.99 | per month |
| Pro | $12.99 | per year |


### Blindspot Protocol

[App page](https://appshunter.io/ios/app/blindspot-protocol/id6758043917)

Experience a high-fidelity haptic simulation that transforms your phone into a digital safe. Test your senses and focus by finding a hidden "Sweet Spot" using only touch and sound. Customize your interface with various visual themes and challenge yourself with a mode that removes all visual cues.

**Highlights:** High-fidelity haptic feedback, Digital safe simulation, Customizable visual interfaces, Ghost Protocol for sensory-only gameplay, ASMR and audio-focused experience, Focus and stress relief tool

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| System Override Bundle | $2.99 | one-time |


## Frequently asked questions

### Is Blackjack free?

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

### Is Blindspot Protocol free?

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

### Which has better reviews, Blackjack or Blindspot Protocol?

Blackjack is rated higher. Blackjack averages 4.7 out of 5 from 12 ratings, while Blindspot Protocol averages 2.0 from 1 ratings.

### Do Blackjack or Blindspot Protocol have ads?

Neither Blackjack nor Blindspot Protocol shows ads.

### Which is updated more often, Blackjack or Blindspot Protocol?

Blackjack ships an update fortnightly, and Blindspot Protocol fortnightly. Most recently, Blackjack was updated on September 28, 2026 and Blindspot Protocol on September 23, 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.*