ShapeMemo vs Infinite Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShapeMemo
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Game Overview ShapeMemo is a simple yet addictive brain-training puzzle game where you memorize colorful shapes displayed on the screen for a short moment and answer quizzes about them. How many red triangles were there? What was the largest shape? Test your memory and observation skills with a variety of fun questions! Recommended for: Those who want a quick brain workout during their spare time. People looking to improve their memory and concentration. Parents looking for an educational game for their kids. Fans of logic puzzles and brain teasers. Features Simple rules and intuitive controls. Questions are randomly generated, offering endless replayability. Challenge yourself to answer all questions correctly and make brain-training a daily habit!
Infinite Math
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That “I solved it!” feeling, all over again. A math app for grown-ups who solve for pleasure—not for any exam. From the wonder of primes and divisors to the crane-and-turtle puzzle, the Monty Hall problem, and even the legendary entrance exams of Japan's top universities— a collection of beautiful problems that make you feel "numbers are fascinating." ■ Made for you if you ・love numbers and logic puzzles ・enjoy giving your mind a workout in spare moments ・want to know not just the answer, but the idea behind it ・are done with exams, but want to rediscover the joy of math ■ Six categories, 55+ problems (more added over time) ・Number Theory & Puzzles … primes, divisors, Fibonacci, perfect numbers, and more ・Classic Problems … crane-and-turtle, Monty Hall, the Königsberg bridges, Pick's theorem, and more ・Elementary Exams … ferris-wheel logic, seesaw puzzles, and other gems ・Junior-High Exams … work, travel, concentration, and counting problems ・High-School Exams … symmetric expressions, probability, Euler's prime-generating formula ・University Exams … legendary stumpers like "Is tan 1° rational?" and "Prove π > 3.05" ■ Highlights ・Daily Problem … one fresh problem to tackle each day ・Sessions … test yourself with five problems at a time ・Explanations worth reading … not just the answer, but the background and the thinking ・Interactive figures … trace the Königsberg bridges or Pick's theorem with your finger ・Progress tracking … solved problems are recorded; aim to clear them all ・19 languages … enjoy these problems in Japanese, English, Chinese, Korean, and more Answers are simple multiple choice—and some figures come alive at your fingertips. Enjoy the world of numbers on your commute, on a break, or before bed.
Screenshots
Verdict
The clearest difference is update cadence: Infinite Math at weekly against ShapeMemo's every 8 months. On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.
ShapeMemo ships an update every 8 months, Infinite Math weekly. The most recent releases landed on October 13, 2026 and September 28, 2026 respectively.
| Parameter | ShapeMemo | Infinite Math |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18 | 17.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Taiki Sato | kenta yamamoto |
In-app purchases
ShapeMemo
No in-app purchases
Infinite Math
No in-app purchases









