SUM! for Family vs 算数忍者〜九九の巻〜完全版
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SUM! for Family
Engage with numbers as characters in this fun math game that teaches addition and subtraction through play. Discover secret tricks by interacting with the lovable number characters.
- Addition and subtraction gameplay
- Numbers represented as characters
- Interactive number personalities
- Secret tricks and discoveries
- Award-winning design
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◇◇◇Red Dot Communication Award 2016◇◇◇ ◇◇◇Muse Creative Awards - Platinum Award Winner◇◇◇ ◇◇◇Digital Ehon (Picture Book) Award 2017 Winner◇◇◇ ◇◇◇Appeared on Japanese Popular Dramas◇◇◇ Math with Lovable Numbers! SUM! is a fun math game that teaches the concept of addition and subtraction through play. In the app, the nature of the numbers is represented as the personality of the characters. Just as each child has a unique individuality, each number has a unique face and personality! It’s an app for not just kids, but for everyone, to enjoy adding and subtracting to build familiarity with numbers. Spot lots of fun secret tricks by touching lovable numbers! ______________________________ SUM! Soundtrack! https://itunes.apple.com/us/album/sum!-original-soundtrack-single/id1032625101?l=en ______________________________ SUM Team Mac Funamizu: App Concept, Design, Animation Takaharu Matsumoto: Character Design Goichi Hirakawa: Programming Shintaro Tanaka: Music ______________________________ Related Info English https://www.facebook.com/enfani
算数忍者〜九九の巻〜完全版
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3日で九九をマスターしたという声も！思わず夢中になる仕組みでお子さんのモチベーションをしっかり維持。楽しく習得できます。 累計で300万ダウンロード！解答数12億問を突破したPSGシリーズの大人気作『算数忍者』で九九を学びましょう！ 【どんなアプリ？】 主人公の忍者と九九の修行を積みながら、テンポよく反復練習できるゲーム形式の学習アプリです。 【親も安心】 成績表機能で、お子さんの正解数、不正解数、苦手な段を確認できるので、目標や課題が一目で把握できます。学校での学習サポートや、復習にも活用。 【モチベーション維持できる工夫】 かけ算を覚えるには反復練習が基本。でも、同じことの繰り返しは飽きてしまう…。 そんなお子さんも、リズムよく目、耳、指を使ってらくらく暗記するゲームなら楽しく続けられます。
Screenshots
Verdict
The clearest difference is review sentiment: SUM! for Family at 91% against 算数忍者〜九九の巻〜完全版's 0%. SUM! for Family also leads on price ($0.99 vs $4.99). 算数忍者〜九九の巻〜完全版's advantage is iOS requirement (11.0 vs 15.6). On update cadence, 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
SUM! for Family costs $0.99 and 算数忍者〜九九の巻〜完全版 $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SUM! for Family ships an update every 3 months, 算数忍者〜九九の巻〜完全版 every 5 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | SUM! for Family | 算数忍者〜九九の巻〜完全版 |
|---|---|---|
| Price | $0.99 — better | $4.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 90.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 112 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | Enfani Inc. | Fantamstick |
Customer experience
SUM! for Family
算数忍者〜九九の巻〜完全版
In-app purchases
SUM! for Family
No in-app purchases
算数忍者〜九九の巻〜完全版
No in-app purchases
Questions
Is SUM! for Family free?
Is 算数忍者〜九九の巻〜完全版 free?
Do SUM! for Family or 算数忍者〜九九の巻〜完全版 have ads?
Which is updated more often, SUM! for Family or 算数忍者〜九九の巻〜完全版?
Other comparisons
