MemDeck vs B Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MemDeck
Practice card memorization with this app that shuffles decks and tests your recall. Track your progress and compete globally. Adjust deck size for all skill levels.
- Card shuffling and display
- Memorization timing
- Automatic answer checking
- Results recording
- Adjustable deck size
- Global leaderboards
Read full descriptionHide full description
This app helps you practice card memorization. MemDeck shuffles a deck of cards and shows you the order. You see the cards to memorize the order. The app records how long do you take to memorize the cards and automatically checks your answer. The results are recorded and you can check them later. MemDeck helps not only pro memory athletes but also beginners! You can reduce the number of cards and practice with a smaller size of the deck. Sign in to Apple's GameCenter to see the world ranking of 13, 26, 39, and 52 cards.
B Master
Read full descriptionHide full description
Humans have thoughts and psychology, so they are more likely to lose in real bets. Now let's win by betting like a computer! Win with system bets such as MartinGale, Routine (Farorie), Hong Kong Cruiser bet. We will increase your win rate with simple operation. 인간은 생각과 심리가 있어서 실제 배팅에서 잃을 확률이 높습니다. 이젠 컴퓨터와 같이 배팅해서 승리합시다! 마틴게일, 루틴(파로리), 홍콩 크루저 배팅과 같은 시스템 배팅으로 승리하세요! 간단하지만 승리 확률을 올려줄것입니다!
Screenshots
Verdict
The clearest difference is price: MemDeck at Free against B Master's $12.99. MemDeck also leads on update cadence (every 6 weeks vs every 7 months). B Master's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.6). On ads 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
MemDeck is free to download; B Master costs $12.99 up front. MemDeck sells 1 one-off in-app purchase. B Master asks for nothing beyond the download.
MemDeck ships an update every 6 weeks, B Master every 7 months. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.
| Parameter | MemDeck | B Master |
|---|---|---|
| Price | Free — better | $12.99 |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks — better | Every 7 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Wataru Mera | Yeong Wu Heo |
In-app purchases
MemDeck
- Premium$4.99
B Master
No in-app purchases
