OnLock - Study Timer
AI-verified focus & study
About
This app enforces focus by locking distracting applications at the operating system level. It uses AI to verify study sessions with photos, ensuring your progress is genuine and building an earned streak. Features include scheduled blocks, intent journaling, and focus intelligence insights.
What's New in OnLock
1.0.1
July 25, 2026
Due to some requested features, we have added and improved the following. - Block distracting apps at the system level during focus sessions - AI proof of work — verify you actually studied before a session counts - Recurring study habits and scheduled focus sessions - Exam countdowns and per-subject tracking - Study insights — peak focus hours and a completion heatmap - Streaks, badges, and levels to keep you motivated Performance improvements and bug fixes
MoreFAQ
Does OnLock have ads?
OnLock is completely free and does not contain any advertisements. The app is designed with a calm, editorial interface to avoid the distractions often found in other applications.
How does OnLock verify study sessions?
Before any session counts towards your streak, OnLock's AI reviews a photo of your work, such as notes or a finished problem set. This ensures the session was genuine study.
What makes OnLock's blocking effective?
OnLock utilizes Apple's Family Controls at the operating system level to lock distracting apps. This enforcement cannot be bypassed through restarts, app deletion, or panic uninstalls.
Can I schedule OnLock blocks?
Yes, OnLock allows you to schedule recurring blocks for specific hours when you tend to slip. This helps in establishing consistent study routines.
What kind of insights does OnLock provide?
OnLock's Focus Intelligence learns your peak study hours, worst blockers, and patterns. It provides personalized insights to help you understand when to study and when to stop pretending.
Is OnLock available on all Apple devices?
OnLock is supported on iPhone and iPad devices. It also offers home screen widgets and lock screen complications for glanceable streaks.
How does OnLock handle privacy?
OnLock prioritizes privacy by keeping screen time data on your device. Photos used for AI proof are reviewed and discarded, and the app does not engage in tracking or selling user data.
What is the age rating for OnLock?
OnLock has an age rating of 4+, making it suitable for a wide range of users looking to improve their focus.