Math 24 vs Zen24
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Math 24
This app offers a classic arithmetic puzzle where players combine four numbers using basic operations to reach 24. It features progressive difficulty levels, a timed challenge mode, and integration with Game Center for leaderboards and achievements.
- Combine four numbers to make 24
- Addition, subtraction, multiplication, division
- Stage mode with 300 levels
- Speed mode for timed challenges
- Game Center leaderboards and achievements
- Help button for difficult questions
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Math 24 - Mental Math Cards is a classical math puzzle game. The game is designed to help people of all skill levels improve their arithmetic abilities and mental math skills. Elementary school students can also play it. But you may not solve some questions even you are a graduate student! ■ How To Play The rules are simple. Combine 4 numbers into 24 by addition(+), subtraction(-), multiplication(×) and division(÷). For example, try to use these 4 numbers: 2048 to make 24. The answer is (2+0)×(4+8)=24. The question is easy, but some questions are much more difficult. You can try this: 6 6 5 9 to make 24. ■ Stage Mode 15 stages and 300 well designed levels in total. The stages are from "Baby" to "King of Math", from easy to difficult. Touch the help button at the top-right corner if you can't solve a question. There are 3 chances to use help button in each stage. ■ Speed Mode 10 random questions! Make 24 as fast as you can! Touch the garbage can button at the top-right corner to change a question. There are 3 chances to change a question in each game. ■ Game Center "Math 24" is fully integrated with Game Center - providing both Leaderboards and Achievements. The Game Center features allow you to test your skills against the rest of the world and to share your scores and accomplishments with friends. ■ Features - Well-designed levels - Best user experience and graphics - Exciting speed mode ■ The App is suitable for you - If you like sudoku, brain training, math game or puzzle game. - If you want to play with friends or family. - If you want to improve you math skills, especially the mental math skills. Have fun!
Zen24
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Zen24 is a calm, beautifully minimal take on the classic 24-point number game. Combine four numbers using +, −, ×, and ÷ to make exactly 24 — one puzzle at a time, at your own pace. Tap or drag numbers around the ring, chaining them through operators in one flowing motion. Every puzzle is guaranteed solvable, and the game handles fractions exactly, so tricky solutions always work out. FEATURES • Tutorial — learn by playing in under a minute, with a “Watch” demo that solves a puzzle step by step • Practice — Easy, Medium, and Hard difficulties, endless puzzles • Speed — solve as many as you can before the timer runs out • Achievements — climb a path of milestones, synced with Game Center • Leaderboards — compare your best times and totals • Hints when you’re stuck, plus full undo • A quiet, ink-inspired zen aesthetic — no clutter, no noise NO ADS Zen24 is completely ad-free. Play as much as you like for free. An optional one-time Zen Pro unlock adds unlimited hints and skips, the Hard practice mode, and longer 5- and 10-minute Speed runs — no subscriptions, ever. Works offline. Your progress syncs across your devices with iCloud. Make 24. Find your calm.
Screenshots
Verdict
The clearest difference is ads: Zen24 at none against Math 24's shown. Zen24 also leads on update cadence (every 2 days vs every 6 weeks). Math 24's advantage is iOS requirement (10.0 vs 17.0). On price, 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. Math 24 sells 4 one-off in-app purchases and Zen24 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Math 24 ships an update every 6 weeks, Zen24 every 2 days. Both last shipped on October 24, 2026.
| Parameter | Math 24 | Zen24 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.2K ratings) — better | — |
| Positive reviews | 75.5% of reviews | — |
| Number of ratings | 2.2K — better | — |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 33 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Peikun Duan | Guizhou Vanilla Information Technology Co., Ltd. |
Bugs and requests
Math 24
Reported bugs
3 issues- Incorrect solutions provided
- Ads not working properly
- Syncing issues across devices
Requested features
3 requests- Add negative numbers and more features
- Option to favorite/save questions
- Difficulty levels (easy, medium, hard)
Zen24
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Math 24
- 12 Tips$1.39
- Remove Ads$2.39
- 20 Tips$2.39
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- 20 Tips + Remove Ads$3.99
Zen24
- Zen Pro$4.99









