Comparison

Numbertopia vs Synthesis24

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Numbertopia

This educational game challenges players to use arithmetic operations on a set of cards to reach a target number. It features both pre-set levels and randomly generated puzzles, encouraging strategic thinking and advanced math skills.

Highlights
  • Reach target numbers with arithmetic operations
  • Level-based puzzles with unlockable stages
  • Randomly generated puzzles
  • Multiple solutions for puzzles
  • Star rewards for progress and solutions
Read full description

Numbertopia is a variation for the classic math game "24 Game". In the "24 Game", players manipulate 4 playing cards to achieve a result of 24 by using addition, subtraction, multiplication and division. In Numbertopia, players have to manipulate 4 or 5 cards to achieve a random number. It requires more complicated strategies and advanced arithmetic skills. There are 2 kinds of puzzles in Numbertopia: the Level Puzzles and the Random Puzzles. The Level Puzzles contain 100 stored puzzles. At the start, most levels are locked, and players solve the puzzle from level 1 to gain yellow stars. By gaining more yellow stars, more levels can be unlocked. The Random Puzzles are generated by computer at real time. There can be more than one solutions for each puzzle, and players will gain a red star if find any solution without viewing the answer. Enjoy your challenge!

About

Synthesis24

Features
Read full description

"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!

Screenshots

Numbertopia4 screens
Synthesis244 screens

Verdict

The call

The clearest difference is iOS requirement: Numbertopia at 13.5 against Synthesis24's 15.0. On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Numbertopia ships an update every 5 months, Synthesis24 every 3 months. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 9 level
Numbertopia versus Synthesis24: the parameters behind the verdict, then further details
ParameterNumbertopiaSynthesis24
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.5 — better15.0
Further details — not scored
Size11 MB49 MB
Age rating4+4+
DeveloperBeijing Tabledox Technology Co., Limited杰超 杨

In-app purchases

None

Numbertopia

No in-app purchases

None

Synthesis24

No in-app purchases

Questions

Is Numbertopia free?
Numbertopia is free to download, with no in-app purchases.
Is Synthesis24 free?
Synthesis24 is free to download, with no in-app purchases.
Do Numbertopia or Synthesis24 have ads?
Neither Numbertopia nor Synthesis24 shows ads.
Which is updated more often, Numbertopia or Synthesis24?
Numbertopia ships an update every 5 months, and Synthesis24 every 3 months. Most recently, Numbertopia was updated on October 24, 2026 and Synthesis24 on October 9, 2026.

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