AB vs IT/AI Audit·COBIT2019 Prep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AB
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The serious study companion for AB-900 (Microsoft 365 Copilot and Agent Administration Fundamentals). 500 original questions built to the official Study Guide, plus a full-length mock exam. One-time purchase, no subscription, fully offline. ■ 500 original questions, built to the official Study Guide Authored to match the AB-900 blueprint across all 3 domains — never copied from Microsoft practice questions, docs, or admin-center screenshots. Three question types: single choice, multiple response, and matching. ■ Three-layer explanations: learn by understanding - Per-option rationale (why each choice is right or wrong) - An overall explanation for the question - Source references (Microsoft Learn) The role differences between easily-confused products — DLP vs sensitivity labels, Defender vs Purview — finally click. Build real knowledge instead of relying on elimination. ■ Full-length mock exam Recreates the real exam (~45 minutes, pass mark 700/1000). After finishing, per-domain accuracy reveals your weak spots. Choose 5–50 questions. ■ Structured, efficient study - Study by domain and section across all 3 domains (focus on the high-weight, tricky Purview domain) - 5 study modes (sequential, shuffle, weak-spot focus, favorites, review, and more) - Progress syncs across your devices via iCloud ■ Bilingual JA/EN to master the terminology AB-900 can be taken in Japanese, but product and admin-center names (Microsoft Purview, Microsoft Entra ID, Defender XDR, etc.) are in English. Switch between Japanese and English to understand the material and lock in the English terms. ■ About AB-900 Microsoft 365 Copilot and Agent Administration Fundamentals. A fundamentals certification covering core Microsoft 365 services and security, data protection and governance with Microsoft Purview, and administration of Microsoft 365 Copilot and agents — from an administrator's perspective. ■ Pricing (one-time, no subscription) - Try the first 10 questions of each domain (30 total) plus one mock exam for free. - A single ¥1,280 purchase unlocks all 500 questions and the mock exam. No monthly fees, no extra charges. ■ Compatibility Works on iPhone and iPad. Runs fully offline, so you can study anywhere. ――― Microsoft, Microsoft 365, Copilot, and Purview are trademarks of Microsoft Corporation. This is an independent exam-prep app and is not endorsed by, affiliated with, or sponsored by Microsoft. ----- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vRQLBWxPqUWFXYXLn2AgY23zdORK5tRzj3SiUb1MVcWIfksqlRJYOQT1QdLCRzuMILG_RIxFpojRXvc/pub
IT/AI Audit·COBIT2019 Prep
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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. Includes 1900 practice questions across 4 exams. 1. Prepare for Certified Information Systems Auditor (CISA) with 500 practice questions and 110 key terms. Study coverage · 5 areas: Information System Auditing Process · Governance and Management of IT · Information Systems Acquisition, Development and Implementation · Information Systems Operations and Business Resilience · Protection of Information Assets Content languages: Korean, English, Japanese, Spanish, French, German. Counts: English materials. 2. Prepare for ISACA Advanced in AI Audit (AAIA) with 400 practice questions and 160 key terms. Study coverage · 3 areas: AI Governance and Risk · AI Operations · AI Auditing Tools and Techniques Content languages: English, Korean. Counts: English materials. 3. Prepare for COBIT Foundation Certificate Examination with 300 practice questions and 110 key terms. Study coverage · 8 areas: Framework Introduction · Principles · Governance System and Components · Governance and Management Objectives · Performance Management · Designing a Tailored Governance System · Business Case · Implementation Content languages: English. Counts: English materials. 4. Prepare for Certified Internal Auditor (CIA) Examination with 700 practice questions and 117 key terms. Study coverage · 11 areas: Part 1 — Section A: Foundations of Internal Auditing · Part 1 — Section B: Ethics and Professionalism · Part 1 — Section C: Governance, Risk Management, and Control · Part 1 — Section D: Fraud Risks · Part 2 — Section A: Engagement Planning · Part 2 — Section B: Information Gathering, Analysis, and Evaluation · Part 2 — Section C: Engagement Supervision and Communication · Part 3 — Section A: Internal Audit Operations · Part 3 — Section B: Internal Audit Plan · Part 3 — Section C: Quality of the Internal Audit Function · Part 3 — Section D: Engagement Results and Monitoring Content languages: English, Arabic, French, Japanese, Korean, Brazilian Portuguese, Spanish. Counts: English materials. 1. Learn the basic terms Use flashcards for meanings, exam context and selection criteria. Mark known and unfamiliar terms for focused review. 2. Practice and read the explanations Study by exam-specific set, domain or difficulty. Read answer and option explanations; use unfinished and wrong-answer filters, shuffle, a timer and session resume. Practice-set sizes vary by exam: 50, 75 or 325 questions. 3. Review mistakes Revisit bookmarks, recent errors and repeated mistakes. Use glossary reports, weak-area analysis and study history to plan revision. 4. Check readiness with a timed mock Use each exam’s settings below, then review results, domain scores and mistakes. Mock questions / time limit (minutes), by exam: 1: 150 / 240; 2: 90 / 150; 3: 75 / 120; 4: 325 / 390 Tools that fit your study routine Audio study and autoplay are optional. Listen to terms and meanings and adjust repeats and pauses. Continue your routine with a study calendar, weekly goals, reminders and themes. Content, features, languages and paid access are specific to each exam. Check the included content and price before purchasing. 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.
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Verdict
The clearest difference is iOS requirement: IT/AI Audit·COBIT2019 Prep at 15.1 against AB's 18.6. On price, update cadence, ads and in-app purchases 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. AB sells 1 one-off in-app purchase and IT/AI Audit·COBIT2019 Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
AB ships an update every 9 days, IT/AI Audit·COBIT2019 Prep every 5 days. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.
| Parameter | AB | IT/AI Audit·COBIT2019 Prep |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 12 MB | 325 MB |
| Age rating | 4+ | 4+ |
| Developer | Nichful | CHOI SEONGMIN |
In-app purchases
AB
- Unlock All Questions$12.99
IT/AI Audit·COBIT2019 Prep
- Lifetime Access$4.99









