Card Adder 21 vs Blackjack Strategy + Trainer
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Card Adder 21
Enhance your mental math skills by tracking a running total as cards are dealt. Progress through increasingly challenging levels with a timed element. The game offers progress tracking and is designed to make counting enjoyable.
- Progressive difficulty levels
- Timed challenges
- Running total tracking
- Progress tracking
- Card dealing gameplay
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HOW TO PLAY Cards are dealt one by one. Keep track of the running total to progress through levels. What level can you reach? FEATURES • Progressive difficulty levels with a timed challenge • Progress tracking • Ads are ONLY shown on losing segments COMING SOON • Game Center high scores and community records • Personalized progress tracking Perfect for anyone wanting to improve their mental adding and counting skills. Download Card Adder 21 and make counting fun.
Blackjack Strategy + Trainer
Master blackjack strategy with this ad-free trainer. Practice under realistic casino conditions, customize game settings, and track your performance to improve your decision-making for live play.
- Adjustable deck count
- Dealer hits/stands on soft 17
- Resplitting options
- Custom starting bankroll
- Performance tracking (wins, losses, percentages)
- Ad-free experience
- Offline play
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Master blackjack strategy and lower the house edge. Blackjack With Strategy is built for players who want to improve. Train under real casino rules, customize game settings, and track your performance over time in a clean, ad-free environment. Whether you're preparing for live casino play or refining your decision making, this app gives you the tools to practice smarter. Train Under Real Conditions • Adjustable deck count • Dealer hits or stands on soft 17 • Resplitting options • Custom starting bankroll • Realistic casino rules Practice blackjack the way it's actually played. Track Your Performance • Total hands played • Wins and losses • Blackjacks • Double downs • Splits • Win percentage over time See how your strategy affects your results. Focused Practice • Ad-free experience • Offline play • Unlimited hands Blackjack With Strategy is for educational and entertainment purposes only. No real money or prizes can be won. Stop guessing. Start practicing smarter.
Screenshots
Verdict
The clearest difference is in-app purchases: Blackjack Strategy + Trainer at none against Card Adder 21's 1. Blackjack Strategy + Trainer also leads on ratings volume (5 vs 1). Card Adder 21's advantage is update cadence (every 5 days vs every 5 months) and device support (3 vs 1). On price, rating, ads and monetization model 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. Card Adder 21 sells 1 one-off in-app purchase. Blackjack Strategy + Trainer asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Card Adder 21 against 5.0 for Blackjack Strategy + Trainer. That said, the two scores are not equally well evidenced: Blackjack Strategy + Trainer has 5 ratings behind it against 1, so its average is the more settled of the two.
Card Adder 21 ships an update every 5 days, Blackjack Strategy + Trainer every 5 months. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.
| Parameter | Card Adder 21 | Blackjack Strategy + Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (5 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 5 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 79 MB | 30 MB |
| Age rating | 4+ | 17+ |
| Developer | Dot Business Integrated Solutions | Devolv LLC |
Customer experience
Card Adder 21
Blackjack Strategy + Trainer
In-app purchases
Card Adder 21
- Card Adder 21 Pro Lifetime$4.99
Blackjack Strategy + Trainer
No in-app purchases
Questions
Is Card Adder 21 free?
Is Blackjack Strategy + Trainer free?
Which has better reviews, Card Adder 21 or Blackjack Strategy + Trainer?
Do Card Adder 21 or Blackjack Strategy + Trainer have ads?
Which is updated more often, Card Adder 21 or Blackjack Strategy + Trainer?
Other comparisons
