Big Math Flash Cards vs xRapidMind
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Big Math Flash Cards
This app provides a digital flash card experience for practicing basic arithmetic operations. Users can flip cards, select answers, and track their progress with score percentages and elapsed time. Additional features for reviewing mistakes, custom sets, and different input modes are available through in-app purchases.
- Addition, Subtraction, Multiplication, Division
- Configurable number of questions and answers
- Score percentage and elapsed time tracking
- Selectable color themes and sound options
- Review incorrect answers (in-app purchase)
- Custom card sets (in-app purchase)
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Highly rated by teachers, parents and kids of all ages! Flip the card just like a real flash card! Simple, clean and easy to use interface. The front side of the card shows the question and the back side of the card shows the possible answers. Just tap to flip the card. Once you answer the question correctly, flick the card off the screen by swiping up. Features * Addition, Subtraction, Multiplication, Division * Score percentage and elapsed time displayed * Configurable number of questions * Configurable number of answers for multiple choice * Supports landscape or portrait card display modes * Selectable flash card color themes * Turn all sounds on or off Other great features available via "In App Purchase" * Review Incorrect - review the questions that were answered incorrectly * Score Cards - view and review past scores and questions * Specific Numbers - customize the first and second number ranges * Mixed Operations - ability to have cards with mixed operators * Flash Card Mode - displays the answer instead of multiple choice (swipe up to mark the card correct, swipe down to mark the card incorrect) * Manual Entry Mode - type your answer instead of selecting from a choice of possible answers * Custom Cards - make your own custom card set questions * Time Per Card - allows you to set a time limit for each card
xRapidMind
Engage in quick, game-like challenges to improve mental math, logic, and problem-solving skills. Learn fundamental coding concepts through interactive puzzles, adapting to your skill level from beginner to advanced.
- Mental math and logic puzzles
- Coding concept challenges
- Adaptive difficulty levels
- Daily streaks and challenges
- Progress tracking
- Solo and competitive play
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xRapidMind turns math and coding into a game you actually want to play. Jump into quick, bite-sized brain challenges that sharpen your mental math, logic, and problem-solving skills in just a few minutes a day — no textbooks, no lectures, just fast rounds that make learning stick. Whether you're 8 or 80, xRapidMind meets you where you are. Start with rapid-fire arithmetic and pattern puzzles, then work your way up to real coding concepts like loops, variables, and logic — taught through playful challenges instead of dry tutorials. Features: Quick Play brain games: mental math, number patterns, and logic puzzles Coding challenges that teach real programming concepts step by step Difficulty that adapts to you, from beginner to advanced Daily streaks and challenges to keep your brain sharp Progress tracking so you can see how fast — and smart — you're getting Fun for solo play or friendly competition with family and friends No two sessions feel the same. Whether you have 60 seconds or 10 minutes, xRapidMind gives your brain a workout and teaches you something real every time you play. Train your brain. Learn to code. Master math — one quick round at a time. Privacy Policy: https://amun-studios.com/xrapidmind-privacy-policy Terms of Service: https://amun-studios.com/xrapidmind-terms-of-service
Screenshots
Verdict
The clearest difference is rating: xRapidMind at 5.0 against Big Math Flash Cards's 4.2. xRapidMind also leads on in-app purchases (none vs 7) and review sentiment (100% vs 77%). Big Math Flash Cards's advantage is ratings volume (41K vs 1). On price, ads, device support and iOS requirement 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. Big Math Flash Cards sells 7 one-off in-app purchases. xRapidMind asks for nothing beyond the download.
xRapidMind holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Big Math Flash Cards has 41K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 77% of Big Math Flash Cards's written reviews are positive against 100% of xRapidMind's.
| Parameter | Big Math Flash Cards | xRapidMind |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (41K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 77.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 41K — better | 1 |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 3 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Masato Takagi | Amun Studios LLC |
Customer experience
Big Math Flash Cards
xRapidMind
Bugs and requests
Big Math Flash Cards
Reported bugs
2 issues- Incorrect answers marked as wrong
- Glitches when swiping answers
Requested features
5 requests- More difficulty levels
- Ability to choose specific math operations
- Addition of word problems
- Inclusion of fractions and exponents
- Gamification and rewards system
xRapidMind
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Big Math Flash Cards
- Review Incorrect$0.99
- Score Cards$0.99
- Specific Numbers$0.99
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- Mixed Operations$0.99
- Levels 4,5,6$0.99
- Flash Card Mode$0.99
- All Bundle$4.99
xRapidMind
No in-app purchases
Questions
Is Big Math Flash Cards free?
Is xRapidMind free?
Which has better reviews, Big Math Flash Cards or xRapidMind?
Do Big Math Flash Cards or xRapidMind have ads?
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