算数電卓 Ext vs PercentTraining
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
算数電卓 Ext
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これは、小学生、中学生のご両親のためのソフトです。 子供に勉強を教える時、ちょっと面倒な計算を手助けするものです。 通分、約分、素因数分解、単位変換、連立方程式など、計算すればわかるけど、ちょっと面倒くさい計算をやってくれます。 また、式を入力すると計算する、式の計算と普通の電卓もあります。 ちょっと携帯電話に忍ばせて、困った時の便利ツールとしてお使い下さい。 ※単位変換はご要望があれば、追加します。
PercentTraining
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割合のトレーニング教材です。百分率、歩合について理解を深めるアプリです。
Screenshots
Verdict
The clearest difference is ads: 算数電卓 Ext at none against PercentTraining's shown. 算数電卓 Ext also leads on iOS requirement (9.3 vs 15.6). PercentTraining's advantage is update cadence (daily vs every 3 weeks). On price, 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.
算数電卓 Ext ships an update every 3 weeks, PercentTraining daily. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.
| Parameter | 算数電卓 Ext | PercentTraining |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.3 — better | 15.6 |
| Further details — not scored | ||
| Size | 15 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | ryo itou | Katsuhiko Yao |
In-app purchases
算数電卓 Ext
No in-app purchases
PercentTraining
No in-app purchases
