# 21 Sharp vs SharkfinPoker Trainer

21 Sharp and SharkfinPoker Trainer are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 21 Sharp sells 1 one-off in-app purchase and SharkfinPoker Trainer sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 21 Sharp | SharkfinPoker Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/21-sharp/id6757319502/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [busyslacker llc](https://appshunter.io/developer/1576079901) | [Hangzhou Original Innovation Technology Co.,Ltd.](https://appshunter.io/developer/1303386165) |

## What reviewers say

### 21 Sharp

[App page](https://appshunter.io/ios/app/21-sharp/id6757319502)

Master blackjack strategy and card counting with this professional-grade trainer. Learn optimal plays, practice counting systems, and track your progress with realistic simulations and reference guides. Reduce the house edge and gain a competitive advantage.

**Highlights:** Basic strategy training, Card counting drills (Hi-Lo), Realistic practice table, Reference guides, Progress tracking and achievements

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 21 Sharp Premium | $2.99 | one-time |


### SharkfinPoker Trainer

[App page](https://appshunter.io/ios/app/sharkfinpoker-trainer/id6790252338)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sharkfin Pro Monthly | $6.99 | per month |
| Sharkfin Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is 21 Sharp free?

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

### Is SharkfinPoker Trainer free?

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

### Do 21 Sharp or SharkfinPoker Trainer have ads?

Neither 21 Sharp nor SharkfinPoker Trainer shows ads.

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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.*