Big Math Flash Cards vs 9x9 Cards
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
9x9 Cards
This app helps children learn multiplication tables through focused study. Developed by a parent for their child, it offers a straightforward approach to mastering math facts.
- Multiplication table study
- Designed for children
- Simple learning approach
- Focus on math facts
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This is the app to study the multiplication. I developed this app for my 8-year-old daughter.
Screenshots
Verdict
The clearest difference is review sentiment: Big Math Flash Cards at 77% against 9x9 Cards's 0%. Big Math Flash Cards also leads on ratings volume (41K vs 1). 9x9 Cards's advantage is rating (5.0 vs 4.2) and monetization model (free vs free with in-app purchases). On price, ads, in-app purchases 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. Big Math Flash Cards sells 1 one-off in-app purchase and 9x9 Cards sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
9x9 Cards 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 complicate that: 77% of Big Math Flash Cards's written reviews are positive against 0% of 9x9 Cards's, so the app with the better star average is not the one people write more warmly about.
| Parameter | Big Math Flash Cards | 9x9 Cards |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (41K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 76.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 41K — better | 1 |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 10.3 — better |
| Further details — not scored | ||
| Size | 3 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Masato Takagi | Koji Iida |
Customer experience
Big Math Flash Cards
9x9 Cards
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
9x9 Cards
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Big Math Flash Cards
- All Bundle$4.99
9x9 Cards
- Premium$0.99
Questions
Is Big Math Flash Cards free?
Is 9x9 Cards free?
Which has better reviews, Big Math Flash Cards or 9x9 Cards?
Do Big Math Flash Cards or 9x9 Cards have ads?
Other comparisons
