Big Math Flash Cards vs 24U Multiply
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
24U Multiply
Master multiplication with an intelligent practice system. This app focuses on teaching you to multiply numbers between 1 and 10 quickly and efficiently. It adapts to your learning, focusing on difficult combinations to improve your skills rapidly.
- Intelligent practice combinations
- Type-in answers
- Adjustable time limits
- Focus on difficult multiplications
- Rapid skill improvement
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Learn and practice multiplying in the most efficient way! Being able to multiply small numbers just from your memory is one of the keys to succeed in math without struggling. This app has just a single purpose - to teach you multiply two numbers between 1 and 10 as fast as possible. It was created for the purpose of improving one kid’s multiplying skill literally over night. And it succeeded. When time is tight you need efficiency. And selecting the examples to practice randomly is not very efficient. So our app incorporates a bit of intelligence to make sure you practice the most difficult combinations the most often. When multiplying in the real world you don’t know the result and aren’t given options to choose from. That’s why this app requires you to type the result. If you enter wrong result it will tell you the right one. You can adjust how much time you have for each calculation and for how long you see the correct result before the next example appears. So once you reach the 100% success rate, you can shorten the timeouts and improve even further. You may not have a reason to keep the app after using it for a day or two, but you will most likely master multiplying after the first few hours of using it! This app has just a single purpose. But it servers it pretty well!
Screenshots
Verdict
The clearest difference is rating: 24U Multiply at 5.0 against Big Math Flash Cards's 4.2. 24U Multiply also leads on in-app purchases (none vs 7) and iOS requirement (13.2 vs 15.6). Big Math Flash Cards's advantage is update cadence (every 2 months vs every 50 months) and ratings volume (40K vs 3). On price, 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
Both are free to download. Big Math Flash Cards sells 7 one-off in-app purchases. 24U Multiply asks for nothing beyond the download.
24U Multiply 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 40K ratings behind it against 3, so its average is the more settled of the two.
Big Math Flash Cards ships an update every 2 months, 24U Multiply every 50 months. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.
| Parameter | Big Math Flash Cards | 24U Multiply |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (40K ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 77.0% of reviews | — |
| Number of ratings | 40K — better | 3 |
| Update frequency | Every 2 months — better | Every 50 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 | 13.2 — better |
| Further details — not scored | ||
| Size | 3 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Masato Takagi | 24U s.r.o. |
Customer experience
Big Math Flash Cards
24U Multiply
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
24U Multiply
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
24U Multiply
No in-app purchases
Questions
Is Big Math Flash Cards free?
Is 24U Multiply free?
Which has better reviews, Big Math Flash Cards or 24U Multiply?
Do Big Math Flash Cards or 24U Multiply have ads?
Which is updated more often, Big Math Flash Cards or 24U Multiply?
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