九九 vs かけざんアプリ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Randomized multiplication problems
- Word problem practice
- Review mode for incorrect answers
- Calendar feature
- Name and icon display for submissions
Read full descriptionHide full description
-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。
かけざんアプリ
Read full descriptionHide full description
The important thing about learning by memorization is balancing input and output. With this app, you can master multiplication tables quickly by alternating between input and output. Not only kids who are somewhat familiar with multiplication tables, but kids who are completely new to them can learn naturally and enjoy it like a game. As soon as a mistake is made in a question, the correct answer is spoken aloud to help memorization. In this way, weak spots in memory can be rectified quickly. Questions answered wrongly will be repeatedly given until correct and reappear after a while. With this double-training system, multiplication is ingrained in both short-term memory and long-term memory. Unnecessary decorations are left out as much as possible so studying is the main focus and concentration is improved. We hope this app will be useful to many people.
Screenshots
Verdict
The clearest difference is in-app purchases: かけざんアプリ at none against 九九's 1. かけざんアプリ also leads on ads (none vs shown) and update cadence (every 5 days vs every 5 months). 九九's advantage is iOS requirement (12.0 vs 15.0). On price 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. 九九 sells 1 one-off in-app purchase. かけざんアプリ asks for nothing beyond the download.
九九 ships an update every 5 months, かけざんアプリ every 5 days. The most recent releases landed on June 5, 2026 and September 17, 2026 respectively.
| Parameter | 九九 | かけざんアプリ |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 109 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Sumie Watanabe | SHINICHIRO ISHII |
In-app purchases
九九
- 九九アプリバナー広告非表示$1.99
かけざんアプリ
No in-app purchases
