Practice Lock vs BadgeTrainer

Combination locks can be tricky—especially when they're attached to lockers at your school. Practice beforehand so you know exactly how to open yours. REALISTIC UNLOCKING The lock behaves exactly like a real one. Spin the dial to enter your combination, then tap or swipe up on the shackle to open. If you want to start over, just keep spinning and enter the combination again. HELPFUL HINTS If you make a common mistake when opening the lock—like forgetting to spin one rotation to the left before your second number—you’ll be notified with a friendly hint. WALKTHROUGH MODE If you get stuck, don't worry. Enable Walkthrough Mode to get step-by-step instructions as you open the lock. CUSTOMIZE YOUR LOCK Choose from six different dial colors: red, yellow, green, blue, purple, or black. GENERATE A RANDOM COMBINATION, OR CHOOSE YOUR OWN If you want to test yourself, generate a combination randomly. Or, choose your own in one of two number ranges: 0-39 or 0-49.

BadgeTrainer is a focused study and practice app built for Texas police cadets preparing for academy exams and the TCOLE licensing exam. The app offers structured quizzes, exam-style questions, and key concept reviews designed to reinforce critical knowledge. Users can study at their own pace, track progress, and strengthen weak areas through repeated practice. New in this version, BadgeTrainer includes native training tools to support daily preparation: log study sessions with focus areas and notes, view progress stats and streaks, earn badges for consistency, and get optional daily reminders. You can also share a progress summary to stay accountable. Your training history is stored on-device so you can keep building momentum even when offline. This app is not affiliated with or endorsed by TCOLE or any law enforcement agency.