Slapstack Math vs Wordvoyance
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.
Wordvoyance
A multiplayer crossword building game designed with accessibility for all players. Enjoy fast-paced, ad-free matches with robust screen reader support and customizable gestures. Play solo against the CPU or with friends, with keyboard and controller support included.
- Online multiplayer crossword building
- Single player mode against CPU
- Full screen reader support
- Customizable gestures and shortcuts
- Keyboard and game controller support
- Ad-free gameplay
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NEW: Play the newly-added Wordvoyance single player mode to learn the game, sharpen your skills, and test your might against the CPU at a faster pace than playing against human opponents! Wordvoyance, the online multiplayer crossword building game with accessibility built-in! Instantly familiar to anyone who has played games like it, Wordvoyance matches are faster and more exciting - but more importantly, ad free! Then, if you're a user of accessibility tools like VoiceOver, the game fully supports your screen reader and offers plenty of tools to help you organize and keep track of the action while you play. At long last, visually-impaired and fully sighted players alike can enjoy this classic board game together! This iOS App version of Wordvoyance supports additional gestures and accessibility shortcuts that make it so much easier to play. Quickly check your work and submit your turn with a Magic Tap. Three-finger scroll left and right between the beginnings of words on the board. Swipe between headings to hop between the game board, tile rack, and all of the game's additional game status readouts. Use the Escape gesture to quickly close dialogs and reclaim tiles from play. There's more! Wordvoyance fully supports keyboards and game controllers too! This is the first crossword game with our innovative cursor input method that enables methods of play beyond just drag and drop - though, that's supported as well. It not only makes blind play a breeze, it's incredibly useful even if you're not visually impaired. Join us in our mission to bring people together through play! Terms of Use: https://www.themisgames.com/terms-of-service
Screenshots
Verdict
The clearest difference is in-app purchases: Slapstack Math at none against Wordvoyance's 3. Slapstack Math also leads on rating (5.0 vs 4.7) and review sentiment (100% vs 80%). Wordvoyance's advantage is update cadence (every 5 weeks vs every 19 months) and ratings volume (107 vs 2). 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. Wordvoyance sells 3 in-app purchases, starting at $4.99 per month. Slapstack Math asks for nothing beyond the download.
Slapstack Math holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Wordvoyance has 107 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Slapstack Math's written reviews are positive against 80% of Wordvoyance's.
Slapstack Math ships an update every 19 months, Wordvoyance every 5 weeks. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.
| Parameter | Slapstack Math | Wordvoyance |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.7 (107 ratings) |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | 2 | 107 — better |
| Update frequency | Every 19 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | American Printing House for the Blind (APH) | Exceptionull Games LLC |
Customer experience
Slapstack Math
Wordvoyance
In-app purchases
Slapstack Math
No in-app purchases
Wordvoyance
- Wordvoyance Pro Monthly3 Days trial$4.991 Month
- Wordvoyance Pro Yearly3 Days trial$39.991 Year
- Wordvoyance Pro$69.99








