Comparison

一問から身につく SQL vs DP

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

Head to head
About

一問から身につく SQL

Features
Read full description

【一問から身につく SQL とは】 SQLを「一問ずつ」確実に身につけるための学習アプリです。ストーリーとテーブル・データを見ながら、選択式の問題に取り組めます。解説では「なぜそうなるか」「よくある誤解」「実務ワンポイント」まで丁寧に解説し、暗記だけで終わらない理解を目指します。 【主な機能】 ・選択式の問題形式(ストーリー/テーブル・データ/SQL の見やすい構成) ・正解・不正解の履歴に基づく進捗表示 ・「誤答のみ表示」で苦手だけを集中的に復習 ・解説でつまずきやすい点を補強 【収録問題について】 リリース時点では全11問を収録しています。今後も問題を追加し、アプリアップデートで順次お届けする予定です(追加のタイミングや本数は開発状況により変わります)。 【料金】 ・一部の問題は無料で学習できます ・無料範囲を超える問題は、アプリ内課金(買い切り)でまとめて解放できます ・購入の復元に対応しています 【データ・プライバシー】 学習の進捗や解答履歴は、お使いの端末内に保存されます(当アプリ専用のアカウント登録は不要です)。 【利用規約】 本アプリの利用規約は、次のページでご確認いただけます。 https://root75125.github.io/sqlProblemPrivacy/terms-of-service.html ※本アプリの学習内容は一般的なSQLの理解を助けるものであり、特定の試験や資格の合格を保証するものではありません。

About

DP

Features
Read full description

Keep studying across your phone, tablet and desktop. Use your phone on the move and a tablet or desktop when you want more room to study. Connect the same StudyCert account to continue your learning in the app and on the desktop web. Prepare for Administering Microsoft Azure SQL Solutions (DP-300) with 532 practice questions and 110 key terms. Study coverage · 5 areas • Plan and implement data platform resources • Implement a secure environment • Monitor, configure, and optimize database resources • Configure and manage automation of tasks • Plan and configure a high availability and disaster recovery (HA/DR) environment 1. Build your foundation with key terms Use flashcards to learn meanings, exam context and selection cues. Mark terms as known or not yet known, then revisit unstudied or unfamiliar cards. Edit card content to suit your learning and restore the original when needed. 2. Practice and understand each answer Study in 50-question sets, by domain or by difficulty. Work through single- and multiple-choice questions, then read the explanation for the answer and each option. Choose all, unfinished or wrong questions; shuffle questions and choices; use a study timer; and resume where you left off. 3. Review mistakes and uncertain concepts Collect questions marked for review, recent errors and repeated mistakes. Filter by cumulative wrong-answer count and focus on weaker domains or difficulty levels. The glossary report connects your known/not-yet records with accuracy on related questions. 4. Check your preparation with a mock exam Practice time management with 50 questions in 100 minutes. Change answers before submission, resume a saved exam and receive grading when time expires. Afterwards, see correct, wrong and unanswered counts, your score and domain results, then revisit mistakes. Tools that fit your study routine Optional audio study reads terms and meanings aloud. Choose whether to include exam context and selection cues, set repeats and pauses, and control playback with the mini player. In the mobile app, audio can continue in the background and with the screen locked. A study calendar, learning streaks, weekly goals, reminders for unmet goals and light, dark or system themes support your routine. Learning records are managed for each supported language. Some features require paid access. Check the included features and price on the purchase screen. Purchase restoration is supported. This is an independent study aid, not an official, affiliated or endorsed app of any exam administrator or certification body. Exam names and trademarks belong to their respective owners.

Screenshots

一問から身につく SQL3 screens
DP4 screens

Verdict

The call

The clearest difference is in-app purchases: 一問から身につく SQL at none against DP's 1. DP's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price and ads 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. DP sells 1 one-off in-app purchase. 一問から身につく SQL asks for nothing beyond the download.

Scorecard3 real differences · 3 level
一問から身につく SQL versus DP: the parameters behind the verdict, then further details
Parameter一問から身につく SQLDP
PriceFreeFree
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.615.1 — better
Further details — not scored
Size1 MB165 MB
Age rating4+4+
DeveloperRYUJI ADACHICHOI SEONGMIN

In-app purchases

None

一問から身につく SQL

No in-app purchases

1 purchases

DP

One-time1
  • DP-300 Lifetime Access$4.99

Questions

Is 一問から身につく SQL free?
一問から身につく SQL is free to download, with no in-app purchases.
Is DP free?
DP is free to download, with in-app purchases available.
Do 一問から身につく SQL or DP have ads?
Neither 一問から身につく SQL nor DP shows ads.

Other comparisons