Glass is an offline iPhone study app for DECA Ontario competitors. Choose one of six clusters, Business Administration Core or Ontario Prepared Events. The 49-event Ontario catalogue helps you find the study track for your event. If you're undecided, a short quiz suggests clusters and events to explore.
7,500 EXPLAINED QUESTIONS
Work through 7,500 original multiple-choice questions, with 1,250 per cluster and questions at every available difficulty level. Many put you in a business situation; some include charts. Each question explains the correct answer and why the other choices are wrong. Browse by cluster or topic, focus on one performance indicator, or build a session by length, difficulty, tags and question status. Daily Practice, Review Due, Bookmarks and Exam Cram give you quick ways to pick up where you left off.
CLUSTER EXAMS
Take a 100-question exam with a 70-minute limit or a 25-question exam with a 30-minute limit. You can also set your own question count and timer. The weak-topics option draws from the indicators where your scores are lowest. Glass uses published 2026-27 instructional-area blueprints where available to build the question mix. Results break down accuracy by topic and performance indicator. Retry missed questions and compare past scores.
ROLEPLAY AND QUICK THINK
Practice with 600 original roleplay scenarios, 100 per cluster. Each has a business brief, participant roles, performance indicators, and separate timers for preparation and presentation. Plan in structured fields or free notes, then score yourself against the rubric categories judges use. Quick Think has 1,200 short situational prompts and an optional two-minute timer. Get on-device coaching where available, or use a structured self-check when AI isn't available.
REVIEW AND PROGRESS
Wrong answers go into the Mistake Notebook and return on a local spaced-repetition schedule. A question stays there until you answer it correctly twice in a row. Track daily goals, streaks and accuracy by cluster or topic. See your study calendar, performance-indicator mastery, cluster-exam history and progress toward 36 achievements. Earned achievement cards go in your profile wallet.
YOUR OWN QUESTIONS
Add questions one at a time or paste a batch. Import CSV or JSON files, and export a local backup to restore later.
COINS AND COSMETICS
Studying earns coins for optional cosmetics: alternate app icons, backgrounds, themes, sound packs, intro styles and a companion. There are no in-app purchases, and you can't buy coins.
WIDGETS
Home Screen widgets show daily progress, your streak, questions remaining, quick-launch actions, daily facts and a broader study overview. You can also put a daily fact on the Lock Screen. Widgets refresh from data stored on your phone.
OPTIONAL ON-DEVICE AI
Where available, on-device AI explains wrong answers, writes study advice, coaches roleplays and reviews Quick Think responses. Compatible devices without Apple Intelligence can download an optional local model of about 800 MB over Wi-Fi. Coaching runs locally after installation. AI doesn't choose the correct answer. Answers come from the question bank.
PRIVACY
Practice, cluster exams, roleplays, progress tracking and widgets work in Airplane Mode. Glass has no account, tracking, advertising or analytics. The optional model download is the app's only network request. You can report a content problem from inside the app; Glass opens a draft in your email app and sends nothing unless you choose to send it.
Glass is an independent study aid. It is not affiliated with, endorsed by or sponsored by DECA Inc. or DECA Ontario. All practice content is original study material, not official DECA competition content. Check event information against current DECA Ontario guidelines.
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