# Pick21 Solitaire vs Blackjack Trainer

The clearest difference is update cadence: Pick21 Solitaire at every 2 days against Blackjack Trainer's fortnightly. Pick21 Solitaire also leads on monetization model (free vs freemium). Blackjack Trainer's advantage is iOS requirement (15.1 vs 26.1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Pick21 Solitaire sells 1 one-off in-app purchase and Blackjack Trainer sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Pick21 Solitaire against 5.0 for Blackjack Trainer. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Pick21 Solitaire ships an update every 2 days, Blackjack Trainer fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Pick21 Solitaire | Blackjack Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/pick21-solitaire/id6755499573/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/blackjack-trainer-twentyone/id6760004532/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | **Free** | Freemium |
| Size | 10 MB | 63 MB |
| Requires iOS | 26.1 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Gabriel Knuth](https://appshunter.io/developer/1854250138) | [Ryan Herga](https://appshunter.io/developer/1880901055) |

## What reviewers say

### Pick21 Solitaire

[App page](https://appshunter.io/ios/app/pick21-solitaire/id6755499573)

This card game offers a unique twist on solitaire, challenging players to combine cards to reach 21. It's easy to pick up but offers engaging gameplay for both quick breaks and extended play sessions.

**Highlights:** Combine cards to hit 21, Fast-paced gameplay, High score system, Simple to learn, Suitable for short sessions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pick 21 Developer Tip | $1.99 | one-time |


### Blackjack Trainer

[App page](https://appshunter.io/ios/app/blackjack-trainer-twentyone/id6760004532)

Master blackjack with realistic drills, structured lessons, and detailed performance tracking. Improve your decision-making and card counting skills through repetition and instant feedback. Access a comprehensive strategy chart and glossary to deepen your understanding.

**Highlights:** Realistic practice drills, Structured training modes, Performance tracking, Card counting practice, Basic strategy chart, Glossary of terms

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Annual Premium | $9.99 | per year |
| Lifetime Premium | $19.99 | one-time |


## Frequently asked questions

### Is Pick21 Solitaire free?

Pick21 Solitaire is free to download, with in-app purchases available.

### Is Blackjack Trainer free?

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

### Which has better reviews, Pick21 Solitaire or Blackjack Trainer?

Pick21 Solitaire and Blackjack Trainer are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Pick21 Solitaire or Blackjack Trainer have ads?

Neither Pick21 Solitaire nor Blackjack Trainer shows ads.

### Which is updated more often, Pick21 Solitaire or Blackjack Trainer?

Pick21 Solitaire ships an update every 2 days, and Blackjack Trainer fortnightly. Most recently, Pick21 Solitaire was updated on November 5, 2026 and Blackjack Trainer on October 31, 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.*