Sugoku vs 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sugoku
Read full descriptionHide full description
Sugoku is a drill app for high school mathematics, shown the way it looks in a printed textbook: fractions stacked with a horizontal bar, √ with a vinculum, raised exponents, and ∫, Σ, lim rendered properly. Problems are generated on the fly, so you never run out of practice. WHAT YOU CAN PRACTICE - 235 topics covering the full Japanese high school curriculum (Math I, A, II, B, C, III): algebra and proof, quadratic functions, sets and logic, trigonometry, exponentials and logarithms, analytic geometry, differentiation and integration, sequences, statistical inference, vectors, complex plane, conic sections, limits and calculus. - Three difficulty levels, from fundamentals to university entrance exam level. - Answers are not forced to be integers: type fractions and radicals directly. The answer boxes show the shape of the answer, so you learn how results are written. - Figures label vertices, angles and side ratios; graphs plot key points (intercepts, vertex, center). - Missed problems come back immediately. Bookmarks and mistake analysis let you drill only your weak spots. KYOKUISEN (RANKING) - A daily rating match with a leaderboard grouped by school year. - One attempt per day; watch a video ad to add attempts, up to three per day. - Your nickname and rating are visible to other players. Do not enter your real name or anything you would not want public. - Offline, your own records are shown instead. SUGOKU PREMIUM (IN-APP PURCHASE) - Removes ads. - Three Kyokuisen attempts every day, no video ads needed. - 20 coins at the start of each Kyokuisen season. - Bookmarks up to 500 items (20 on the free tier). - Answer timer with time analysis, plus the Sakura skin. - One-time purchase. Restore from the settings screen. COMMON TEST PREP PLAN (AUTO-RENEWABLE SUBSCRIPTION) - Topic-by-topic practice booklets in the style of Japan's Common Test (in Japanese). One booklet per field (14 in total) is free; the rest are included in the Common Test Prep Plan. - Monthly plan: ¥480 per month. Yearly plan: ¥3,800 per year (prices in Japan; other regions follow the App Store price). - Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically for the same period and price unless auto-renew is turned off at least 24 hours before the end of the current period. - Manage or cancel in your device's Settings > Apple ID > Subscriptions. Restore purchases from the subscription screen. ADS - On the free tier, banner ads appear on the topic list and the result screen. - Video ads play only when you choose to add a Kyokuisen attempt. Ads never interrupt you mid-problem. PLEASE NOTE - The app is available in English and Japanese. When your device language is not Japanese, problem statements, answer fields and choices are shown in English. Hints, step-by-step explanations and Common Test prep booklets remain in Japanese. - Requires iOS 17.0 or later, iPhone and iPad. Study records are stored on your device. Leaderboard data is stored in Apple CloudKit. See the privacy policy for details, or contact us through the support page. Terms of Use: https://ottub.github.io/sugoku/terms.html Privacy Policy: https://ottub.github.io/sugoku/privacy-policy.html
中学数学 中1中2中3の苦手をさかのぼって解き直すドリル
Read full descriptionHide full description
「どこが分からないのか、分からない」を、そのままにしません。 まちがえたら、そのひとつ手前の項目までさかのぼります。できる所が見つかるまでもどるので、「何も分からない」で止まりません。そこから順にやり直して、最初に解けなかった問題にもどってきます。 ■ 中学数学を330の項目に分けました 小学校の計算から中3の三平方の定理まで、つながりの順に並んでいます。どこから始めても、必要なら前の項目までさかのぼるので、学年をまたいだ取りこぼしも拾えます。 ■ 解説はふたとおり 教科書と同じ書き方の解説と、先生と生徒の会話があります。会話はよくあるつまずきをひとつずつ取り上げるので、解説を読んでも分からなかったときのもう一本になります。 ■ まちがえ方を名指しします 答え合わせのとき、その答えがどの考え方から出たのかを当てて、同じ考え方の会話を開きます。「なぜそう書いてしまったのか」から読み直せます。 ■ 実力テスト 単元をまたいで10問。採点は最後にまとめて出ます。できなかった所からは、そのままさかのぼれます。 ■ 記録 できるようになった項目、正答率、復習の予定が残ります。忘れるころに、一度できた項目をもう一度出します。 ■ 分かりにくかったら教えてください 問題・解説・会話・見直しの下に「ここが分かりにくい」があります。押すだけで運営に届き、解説を書き直す材料になります。 ――― 330項目の解説と、先生と生徒の会話1010本、図、実力テスト、成績は、すべてお使いいただけます。広告は入れていません。問題も解けますが、どの項目もはじめの6問がくり返し出ます。新しい問題が毎回作られるのが、買い切りのPro(¥1,200)です。月額はありません。 記録はこの端末の中だけに残ります。ほかの端末へは移せません。氏名・連絡先・位置情報は集めません。
Screenshots
Verdict
The clearest difference is in-app purchases: 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル at none against Sugoku's 1. 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル also leads on ads (none vs shown). Sugoku's advantage is update cadence (every 3 days vs every 10 days). On price, device support and iOS requirement 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. Sugoku sells 1 one-off in-app purchase. 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル asks for nothing beyond the download.
Sugoku ships an update every 3 days, 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル every 10 days. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.
| Parameter | Sugoku | 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Every 10 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 485 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | ryo otsuka | RAINBOW TREE LLC |
In-app purchases
Sugoku
- プレミアムプラン$1.99
中学数学 中1中2中3の苦手をさかのぼって解き直すドリル
No in-app purchases
Questions
Is Sugoku free?
Is 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル free?
Do Sugoku or 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル have ads?
Which is updated more often, Sugoku or 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル?
Other comparisons















