Synthesis24 vs 24 (+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synthesis24
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"Synthesis 24" is a puzzle game based on mathematical logic. The specified numbers and operation symbols are formed into 3 formulas, so that the final answer is 24. There are hundreds of cleverly designed level modes and an endless mode with countless levels, waiting for you to challenge! Come and exercise your mathematical thinking Game Features: 1. Through the use of numbers and symbols, make the specified number calculate 24, exercise brain thinking. 2. Make the game more interesting by dragging. 3. Hundreds of cleverly designed levels that are extremely challenging. 4. Endless mode with countless levels to meet your needs to pass the time and exercise mathematical thinking. 5. Free forever. 6. Continue to update more levels and gameplay. Our games can exercise people's mathematical thinking ability, including oral and mental arithmetic, can develop intelligence, improve independent thinking ability and logical thinking. Simple numbers, including endless thinking and careful logic, and the fun of solving problems can all be reflected in our game. Come and try and experience the charm of numbers!
24 (+
A free math puzzle game where you use four numbers and basic arithmetic operations to reach the target number 24. It's designed to enhance arithmetic skills, particularly for middle and high school students.
- Four-digit arithmetic puzzles
- Use +, -, ÷, x operations
- Parentheses for grouping
- Improves math skills
- Targeted for students
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The classic game of 24. Use 4 digits to total 24 using only the operations +, -, ÷, x, and parentheses for grouping. Helps anyone improve math/arithmetic skills, especially middle and high school students. It's fun, and it's free.
Screenshots
Verdict
The clearest difference is ads: Synthesis24 at none against 24 (+'s shown. Synthesis24 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence and in-app purchases 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.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.
| Parameter | Synthesis24 | 24 (+ |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 49 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | 杰超 杨 | Gilbert Gonsalves |
In-app purchases
Synthesis24
No in-app purchases
24 (+
No in-app purchases
Questions
Is Synthesis24 free?
Is 24 (+ free?
Do Synthesis24 or 24 (+ have ads?
Which is updated more often, Synthesis24 or 24 (+?
Other comparisons
