f(x) 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.
f(x)
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[ルール説明] 1.ターンが始まるとxの値がランダムで与えられる. 2.味方キャラはそれぞれ技(関数)を持っており,誰のどの技を発動するかを選ぶ.選んだ技に応じてxの値が変化する.これを3キャラ分行う. 3.味方キャラの値のうち,正の値は攻撃力に,負の値は回復力になる. 4.敵が行動してターン終了.まあやれば分かる(はず...!).
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
The clearest difference is update cadence: 素因数分解キングダム at weekly against f(x)'s monthly. 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.
f(x) ships an update monthly, 素因数分解キングダム weekly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.
| Parameter | f(x) | 素因数分解キングダム |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 77 MB | 55 MB |
| Age rating | 12+ | 4+ |
| Developer | Ryo Matsumoto | Yuta Matsuda |
In-app purchases
f(x)
No in-app purchases
素因数分解キングダム
No in-app purchases
