Card Adder 21 vs Blackjack Solver
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 Solver
Master blackjack strategy and card counting with this comprehensive training platform. It offers interactive practice modes, real-time counting with true count calculations, and adaptive basic strategy recommendations. Track your progress with detailed performance analytics and customizable game rules.
- Solver Mode for manual analysis
- Practice Mode with automatic dealing
- Real-time Hi-Lo card counting
- Adaptive basic strategy recommendations
- Detailed performance analytics
- Customizable game rules
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Blackjacksolver.com is a comprehensive blackjack training platform designed to help players master basic strategy and card counting techniques. The app features two distinct training modes: Solver Mode for manual card analysis and strategic decision-making, and Practice Mode for interactive gameplay with automatic card dealing. Key features include real-time Hi-Lo card counting with true count calculations, comprehensive basic strategy recommendations that adapt to various rule sets, and detailed performance analytics that track decision accuracy, timing, and win rates. The platform supports customizable game rules, including dealer hits on soft 17, double after split, and surrender options. Built for both beginners and advanced players, BlackJack Solver provides an intuitive learning environment with progress tracking, session management, and personalized statistics. The app helps users develop their blackjack skills through structured practice sessions while maintaining detailed records of their improvement over time. Perfect for anyone looking to improve their blackjack game through systematic training and data-driven feedback. Subscription Information – Pro Tier: $12.99/month, includes unlimited hands and full stats dashboard – Basic Tier: $7.99/month, includes unlimited hands – Free Tier: 30 hands per day – Payment will be charged to your Apple ID account at confirmation of purchase. – Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. – Manage or cancel your subscription in your App Store account settings. – Terms of Use: https://blackjacksolver.com/terms-of-use – Privacy Policy: https://blackjacksolver.com/privacy-policy
Screenshots
Verdict
The clearest difference is monetization model: Card Adder 21 at free against Blackjack Solver's freemium. Blackjack Solver's advantage is ratings volume (5 vs 1). On price, rating, update cadence and ads 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 and Blackjack Solver sells 2 in-app purchases, starting at $7.99 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 Card Adder 21 against 5.0 for Blackjack Solver. That said, the two scores are not equally well evidenced: Blackjack Solver 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 Solver weekly. The most recent releases landed on September 7, 2026 and September 4, 2026 respectively.
| Parameter | Card Adder 21 | Blackjack Solver |
|---|---|---|
| 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 | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 79 MB | 29 MB |
| Age rating | 4+ | +17 |
| Developer | Dot Business Integrated Solutions | Tengy LLc |
Customer experience
Card Adder 21
Blackjack Solver
In-app purchases
Card Adder 21
- Card Adder 21 Pro Lifetime$4.99
Blackjack Solver
- Basic Plan$7.991 Month
- Pro7 Days trial$9.991 Month
Questions
Is Card Adder 21 free?
Is Blackjack Solver free?
Which has better reviews, Card Adder 21 or Blackjack Solver?
Do Card Adder 21 or Blackjack Solver have ads?
Which is updated more often, Card Adder 21 or Blackjack Solver?
Other comparisons
