9x9カード vs ローマ字
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
9x9カード
This app helps children learn multiplication tables with interactive flashcards. It offers various modes, including random quizzes and challenges, and allows customization of pronunciation for multiplication facts. It's designed to make learning multiplication engaging and effective.
- Interactive flashcards
- Customizable pronunciation
- Multiple learning modes
- Randomized quizzes
- Multiplication challenges
- Progress tracking
Read full descriptionHide full description
シンプルな九九カードのアプリです カードのタップで答えを表示、スワイプで次の問題が表示されます 九九の読み方も表示します 初期設定の読み方は変更することができるので、通っている学校で教わっている読み方に変更できます 例）はちしさんじゅうに --> はっしさんじゅうに 4つモードを用意しています ・全部の九九 ・段の選択 ・ランダム50問 ・九九チャレンジ（答えを入力しながら九九にチャレンジ） ぜひお子さまの九九学習にお役立てください！
ローマ字
Read full descriptionHide full description
This is an application to study the Roman alphabet. You can learn from reading basic alphabets in a quiz format.
Screenshots
Verdict
The clearest difference is rating: 9x9カード at 5.0 against ローマ字's 1.0. 9x9カード also leads on ads (none vs shown). ローマ字's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 5 months). On price, ratings volume 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. 9x9カード sells 1 one-off in-app purchase. ローマ字 asks for nothing beyond the download.
9x9カード holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
9x9カード ships an update every 5 months, ローマ字 monthly. The most recent releases landed on October 9, 2026 and September 27, 2026 respectively.
| Parameter | 9x9カード | ローマ字 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 81.3% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 5 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 154 MB |
| Age rating | 4+ | 4+ |
| Developer | Kouichi INAFUKU | Ohmori Takeru |
Customer experience
9x9カード
ローマ字
In-app purchases
9x9カード
- 機能の追加$1.99
ローマ字
No in-app purchases
