Slapstack Math vs Sound Matching
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Slapstack Math
This game turns math flashcards into a fast-paced action and memory challenge. Players slap the table or perform other actions based on math problems and their answers, with customizable rules and difficulty.
- Math flashcard gameplay
- Customizable action rules
- Addition, subtraction, multiplication, division modes
- Self-voicing and VoiceOver compatible
- High-contrast colors and large print
- Adjustable game speed
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Slapstack Math™ is an action and memory game that uses math flash cards instead of playing cards. Slapstack Math is fully accessible for all users. The goal is to collect the most points by pulling in the most cards. Two to eight players can play on the iPad®, or two to four players on the iPhone® or iPod® Touch. When the game starts, cards with single numbers are dealt and announced. At first, the only rule is to slap the table when an 11 comes up on the screen. The first player to slap the table gets to claim all the cards that have been dealt up to that time. After a while, you may want to add more rules – for example, players have to raise their arms and yell “Whee!” when an 8 comes up, and clap their hands when a 3 appears (and still slap the table on 11’s). You may add as many new rules as you want, making the game a little crazier each time. The real challenge with Slapstack Math comes when you change the single number cards to math flash cards. You may choose one of the following game variations: Addition – displays addition problems with sums from 2-12. Subtraction – subtraction problems with differences from 1-11. Multiplication – multiplication problems with products from 1-12. Division – division problems, using numbers up to 24, with quotients from 1-12. Addition and Subtraction – a mixture of problems from these two operations. Multiplication and Division – a mixture of problems from these two operations. All Four Operations – a mixture of problems from all of the operations. When playing the games using math operations, players have to calculate the answer to the problem before doing any required action. For example, if the problem is 7 + 4, players must come up with the answer, 11, and then slap the table (which is the required action for 11’s). If several numbers have actions assigned to them, players will have to do a lot of calculation, mental association, and even physical movement to play the game! Features: * Supports math learning objectives. * All game features are fully self-voicing. * Fully compatible with VoiceOver. * High-contrast colors and large print numbers. * Change the speed of play for different situations. Slapstack Math provides an enjoyable and motivating practice tool for basic math operations, a recreational app for fun, or a reward after classwork. Recommended ages: 7 and up.
Sound Matching
A memory-boosting matching game that utilizes sounds for gameplay. It offers various modes to train sound recognition and is specifically optimized for visually impaired individuals, featuring extensive accessibility options.
- Multiple game modes
- Sound recognition training
- Customizable sound categories
- Adjustable difficulty levels
- Multiplayer support
- Extensive accessibility options
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Train your memory and sound recognition with an accessible matching game built around sound. Play the classic memory game or explore alternative game modes, whether you play alone or with friends. Choose from seven built-in sound categories, discover new sound sets in the online library, or create your own by recording and importing sounds. Sound sets submitted to the library are reviewed before they are published. Organize sounds with labels and dimensions such as language, octave, or color. Use filters to create a custom selection, or match variations that share the same name but have different characteristics. Keep your custom sound sets and recordings available across your devices with iCloud sync. Flexible layouts adapt to every supported device size and orientation, including windowed iPad use. Designed with comprehensive support for blind and visually impaired players, including VoiceOver and extensive accessibility settings. Features: • Three game modes • Seven built-in sound categories • Browse and import reviewed sound sets from the online library • Record and import your own sounds • Sync custom sound sets and recordings across devices with iCloud • Organize sounds with labels and dimensions • Filter sounds to create custom selections • Match different variations of the same sound • Import, export, and share sound sets • Choose your favorite sounds • Card sets up to 18 cards for an extra challenge • Play with up to four players • Eight color schemes • Adaptive layouts for every device size and orientation • Extensive VoiceOver and accessibility settings Privacy comes first: no tracking, no advertising, no subscriptions, and no in-app purchases.
Screenshots
Verdict
The clearest difference is update cadence: Sound Matching at every 5 days against Slapstack Math's every 19 months. Slapstack Math's advantage is iOS requirement (8.0 vs 17.0). On price, rating, review sentiment and ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Slapstack Math against 5.0 for Sound Matching. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Slapstack Math ships an update every 19 months, Sound Matching every 5 days. The most recent releases landed on June 1, 2026 and September 20, 2026 respectively.
| Parameter | Slapstack Math | Sound Matching |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 19 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | American Printing House for the Blind (APH) | Unboxing Solutions B.V. |
Customer experience
Slapstack Math
Sound Matching
In-app purchases
Slapstack Math
No in-app purchases
Sound Matching
No in-app purchases
Questions
Is Slapstack Math free?
Is Sound Matching free?
Which has better reviews, Slapstack Math or Sound Matching?
Do Slapstack Math or Sound Matching have ads?
Which is updated more often, Slapstack Math or Sound Matching?
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