Pick21 Solitaire vs Blackjack Strategy Trainer 21
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Pick21 Solitaire
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.
- Combine cards to hit 21
- Fast-paced gameplay
- High score system
- Simple to learn
- Suitable for short sessions
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Pick21 Solitaire is a quick-thinking twist on classic solitaire. Combine cards to hit 21. The faster you go, the higher your score! Simple to learn, hard to put down, and perfect for short sessions or long runs.
Blackjack Strategy Trainer 21
Master blackjack with a strategy trainer that uses spaced repetition to adapt to your learning. Practice every hand decision with instant feedback and learn from structured lessons. Supports multiple rule sets for realistic casino training.
- Spaced repetition learning
- Practice hit, stand, double, split, surrender
- Supports S17, H17, and ENHC rule sets
- Full basic strategy chart
- Structured lessons for beginners
- Realistic casino practice environment
- Cloud sync across devices
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The house has a system. Do you? Stop guessing at the blackjack table. Blackjack Strategy Trainer 21 teaches you the mathematically correct play for every hand using proven spaced repetition techniques. Practice hit, stand, double, split, and surrender decisions with instant feedback. WHY THIS TRAINER IS DIFFERENT Unlike other blackjack apps, this trainer adapts to you. The spaced repetition system tracks which hands you get wrong and serves them more often, so you improve faster where it matters most. 3 RULE SETS FOR REAL TABLES Most blackjack trainers only support one rule set. This app supports three, so your training matches the exact table rules you may face: - S17: Dealer stands on soft 17 - H17: Dealer hits on soft 17 - ENHC: European No Hole Card FULL STRATEGY CHART Browse the complete basic strategy chart in a color-coded grid. See the correct play for every dealer upcard at a glance. Hard totals, soft totals, and pairs are all covered. SMART TRAINING FEATURES - Spaced repetition: hands you get wrong appear more often until you master them - Hand-type accuracy breakdown for hard totals, soft totals, pairs, and surrender decisions - Daily goals that grow as you play: 10 hands a day, then 25, then 50 - Daily streaks with Streak Shields to protect your progress - Auto-advance timer for rapid-fire practice sessions LEARN MODE Not sure where to start? Structured lessons cover basic strategy from the ground up. Each lesson includes clear rules and detailed explanations so you understand the reasoning behind every decision. CASINO-STYLE PRACTICE Train on an immersive green felt table with realistic playing cards. It feels closer to a real blackjack table than a boring quiz. AVAILABLE IN 8 LANGUAGES English, Korean, Italian, German, French, Spanish, Portuguese, and Romanian. CLOUD SYNC Create an account to sync your progress across devices. Switch phones without losing your stats, streaks, or shields. FREE TO PLAY Download and start training immediately. No subscription required. Perfect for casino beginners, experienced players refreshing before a trip, online blackjack players, and European players who need ENHC strategy. Reduce the house edge and play 21 with confidence.
Screenshots
Verdict
The clearest difference is in-app purchases: Blackjack Strategy Trainer 21 at none against Pick21 Solitaire's 1. Blackjack Strategy Trainer 21 also leads on iOS requirement (15.0 vs 26.1). Pick21 Solitaire's advantage is ads (none vs shown) and update cadence (every 2 days vs weekly). On price, rating, ratings volume and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Pick21 Solitaire sells 1 one-off in-app purchase. Blackjack Strategy Trainer 21 asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Pick21 Solitaire against 5.0 for Blackjack Strategy Trainer 21. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
Pick21 Solitaire ships an update every 2 days, Blackjack Strategy Trainer 21 weekly. Both last shipped on November 5, 2026.
| Parameter | Pick21 Solitaire | Blackjack Strategy Trainer 21 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Number of ratings | 2 | 2 |
| Update frequency | Every 2 days — better | Weekly |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Gabriel Knuth | CWTI Ltd |
Customer experience
Pick21 Solitaire
Blackjack Strategy Trainer 21
In-app purchases
Pick21 Solitaire
- Pick 21 Developer Tip$1.99
Blackjack Strategy Trainer 21
No in-app purchases
Questions
Is Pick21 Solitaire free?
Is Blackjack Strategy Trainer 21 free?
Which has better reviews, Pick21 Solitaire or Blackjack Strategy Trainer 21?
Do Pick21 Solitaire or Blackjack Strategy Trainer 21 have ads?
Which is updated more often, Pick21 Solitaire or Blackjack Strategy Trainer 21?
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