Prime Pick vs 素因数分解キングダム
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Prime Pick
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Let's pick a prime number! You'll become strong in numbers! 素数を選ぼう！数に強くなれるぞ！
素因数分解キングダム
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素因数分解キングダムはゲームを通じて、素因数分解を学ぶことができるアプリです。 単にゲームとして楽しむだけでなく、定期テスト対策や受験勉強の一環としても活用できます。 また、脳トレとしても効果的なので、学生以外にもおすすめです。 "Prime Factorization Kingdom" is an app that allows users to learn prime factorization through gameplay. Not only can it be enjoyed as a game, but it can also be utilized as part of regular test preparation or entrance exam studies. Additionally, it is effective as a brain-training tool, making it highly recommended not just for students but for people of all ages.
Screenshots
Verdict
Prime Pick and 素因数分解キングダム are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Prime Pick ships an update every 3 days, 素因数分解キングダム weekly. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.
| Parameter | Prime Pick | 素因数分解キングダム |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 5 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Takumi Muraishi | Yuta Matsuda |
In-app purchases
Prime Pick
No in-app purchases
素因数分解キングダム
No in-app purchases
