Comparison

小数の計算練習 vs 九九

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

Head to head
About

小数の計算練習

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シンプルな小数の計算練習アプリです。 ・たし算、ひき算、かけ算、わり算の練習を選ぶことができます。 ・3段階の難易度を選ぶことができます。

About

九九

This app offers a comprehensive multiplication and word problem learning experience with randomized practice questions. It includes a review mode for incorrect answers and is free to use with optional ad removal via in-app purchase.

Highlights
  • Randomized multiplication problems
  • Word problem practice
  • Review mode for incorrect answers
  • Calendar feature
  • Name and icon display for submissions
Features
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-多くの教育機関でもご好評いただいています- 2.0 追加機能 カレンダー なまえとアイコンを表示できる機能(スクリーンショットで宿題を提出する際などにご活用ください 九九やかけ算の問題がたくさん詰まったアプリです。 問題はランダムで作成されるので、何度でも繰り返し学習できます。 間違った問題だけを集めた復習モードを搭載! 苦手な段の克服に役立ちます。 全て無料でお使いいただけます。 画面下部にバナー広告が挿入されます。 アプリ内購入でバナー広告を非表示にできます。

Screenshots

小数の計算練習3 screens
九九4 screens

Verdict

The call

The clearest difference is in-app purchases: 小数の計算練習 at none against 九九's 1. On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 九九 sells 1 one-off in-app purchase. 小数の計算練習 asks for nothing beyond the download.

UpkeepUpdate frequency

小数の計算練習 ships an update every 6 months, 九九 every 5 months. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 9 level
小数の計算練習 versus 九九: the parameters behind the verdict, then further details
Parameter小数の計算練習九九
PriceFreeFree
Rating—2.5 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 monthsEvery 5 months — better
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.012.0 — better
Further details — not scored
Size3 MB109 MB
Age rating4+4+
DeveloperYushi YamadaSumie Watanabe

In-app purchases

None

小数の計算練習

No in-app purchases

1 purchases

九九

One-time1
  • 九九アプリバナー広告非表示$1.99

Questions

Is 小数の計算練習 free?
小数の計算練習 is free to download, with no in-app purchases.
Is 九九 free?
九九 is free to download, with in-app purchases available.
Do 小数の計算練習 or 九九 have ads?
Both 小数の計算練習 and 九九 show ads.
Which is updated more often, 小数の計算練習 or 九九?
小数の計算練習 ships an update every 6 months, and 九九 every 5 months. Most recently, 小数の計算練習 was updated on October 27, 2026 and 九九 on November 3, 2026.

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