プロジェクトマネージャ試験対策 vs Oracle Java SE 21 Developer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
プロジェクトマネージャ試験対策
Read full descriptionHide full description
[選択]で、学習する問題を選びます。午前2問題のみの選択もできます。 [問題]で、選択肢から、解答を選びます。解答を選ぶと[解説]画面に変わります。 [解説]で、○(正解)、×(間違い)を確認します。全ての問題の解説を記載しています。チェックをつけておけば、あとから振り返るときに便利です。 [一覧]は、選択した学習問題の一覧です。 [集計]は、解答日別に、解答数、正解数、間違い数、正答率を表示します。 [メモ] は、メモを8つまで作成できます。問題によってはpointを登録していますので、メモに追加できます。共有ボタン(□に↑)をタッチすれば、メモをファイルに保存したり、メールで送ることができます。
Oracle Java SE 21 Developer
Read full descriptionHide 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 Oracle Java SE 21 / 1Z0-830 with 500 practice questions and 149 key terms. Study coverage · 10 areas • Handling Date, Time, Text, Numeric and Boolean Values • Controlling Program Flow • Using Object-Oriented Concepts in Java • Handling Exceptions • Working with Arrays and Collections • Working with Streams and Lambda expressions • Packaging and Deploying Java Code • Managing Concurrent Code Execution • Using Java I/O API • Implementing Localization 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 120 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
Verdict
The clearest difference is price: Oracle Java SE 21 Developer at Free against プロジェクトマネージャ試験対策's $3.99. Oracle Java SE 21 Developer also leads on update cadence (weekly vs every 6 months). プロジェクトマネージャ試験対策's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 15.1). On ads 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
Oracle Java SE 21 Developer is free to download; プロジェクトマネージャ試験対策 costs $3.99 up front. Oracle Java SE 21 Developer sells 1 one-off in-app purchase. プロジェクトマネージャ試験対策 asks for nothing beyond the download.
プロジェクトマネージャ試験対策 ships an update every 6 months, Oracle Java SE 21 Developer weekly. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.
| Parameter | プロジェクトマネージャ試験対策 | Oracle Java SE 21 Developer |
|---|---|---|
| Price | $3.99 | Free — better |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 6 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 51 MB | 209 MB |
| Age rating | 4+ | 4+ |
| Developer | Masahiro Tomosada | CHOI SEONGMIN |
In-app purchases
プロジェクトマネージャ試験対策
No in-app purchases
Oracle Java SE 21 Developer
- Lifetime Access$4.99
Questions
Is プロジェクトマネージャ試験対策 free?
Is Oracle Java SE 21 Developer free?
Do プロジェクトマネージャ試験対策 or Oracle Java SE 21 Developer have ads?
Which is updated more often, プロジェクトマネージャ試験対策 or Oracle Java SE 21 Developer?
Other comparisons















