# DrillLock: Screen Time Blocker — Focus. Math-locked app limits > Math-based app blocker to protect study time and prevent distractions. (iPhone/iPad app by FRONTLINE LLC.) - Source: https://appshunter.io/ios/app/drilllock-screen-time-blocker/id6759181330 (this page in markdown: same URL + `.md`) - Developer: [FRONTLINE LLC](https://appshunter.io/developer/1877229947) - Category: Productivity, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 7 MB - Languages: American English, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish and 3 more - Released: 2026-02-18 - Data updated: 2026-09-10 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/drilllock-screen-time-blocker/id6759181330/reviews.md ## What is DrillLock? Your study hours and your sleep are too important to leave to willpower. DrillLock locks the apps that eat them, and nothing opens again until you solve a math problem. You choose the apps that pull you away, and the hours they stay shut. Reach for one anyway and the math is waiting. Your hand stops, and the moment passes. IF THIS SOUNDS LIKE YOU • You sit down to study, open one app for a second, and the next hour is gone • You get into bed on time and you're still awake at 1 a.m., scrolling • You have a deadline this week and keep drifting away from the work • You're studying for an exam, a license, or a degree while working full time • You've tried Screen Time and found it far too easy to tap right past WHAT YOU CAN DO • Start focusing right now (Instant) Choose 15 minutes, 30 minutes, or an hour, and the noisy apps are out of reach for exactly that long. Made for the moment you finally sit down. • Decide once when the phone goes down (Schedule) Set the days and the time windows a single time. Your study block and your bedtime then hold on their own, so you're not renegotiating with yourself at midnight. • Call it a day once you've had enough (Time Limit) Give the apps that eat your evenings a daily allowance. The moment you pass it, they close for the rest of the day and the evening comes back to you. • One question stands between you and the app (Math Challenge) Nothing opens until you solve a math problem and get it right. It's a small enough step to clear when you truly need the app, and just enough friction that most of the time you set the phone down instead. • Ten minutes, then it closes itself (Temporary Unlock) Answer the challenge correctly and the app opens for ten minutes. After that it locks again by itself, with no timer to watch, and one tap re-locks it early when you're done sooner. GOOD TO KNOW • DrillLock needs Screen Time permission to lock and release apps • Phone and other essential apps are never locked, so you can always reach help in an emergency • Locking runs on Apple's Screen Time system, so iOS decides part of how a blocked app looks and behaves • Every locking decision is made on your iPhone. DrillLock does not send your browsing history or the names of the apps you restrict. DrillLock collects anonymous usage data to improve the app. PRO • Keep several rules running at the same time • Allowlist mode: block everything except the handful of apps you name • Set your own daily cap on temporary unlocks, so one rough evening can't become ten unlocks • Hard challenges, with your own choice of digit count and number of questions PRO is an auto-renewing subscription, monthly or yearly. You can cancel anytime in your Apple Account settings. Deciding once is easier than deciding fifty times a day. Set the rule tonight, and take back the hours that were quietly going missing. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Math challenge to unlock apps - Scheduled app blocking - Usage limit blocking - Temporary unlocks - Essential app exceptions - Multiple rule support (Pro) ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Challenge Pack Yearly | $19.99 | per year | | Challenge Pack Monthly | $2.99 | per month | ## Frequently asked questions about DrillLock ### What is DrillLock? DrillLock is a productivity app designed to help users focus by requiring them to solve a math problem before accessing distracting applications. It aims to create a deliberate pause between the impulse to open an app and the action itself. ### How does DrillLock work? When you attempt to open a blocked app, DrillLock presents a math challenge. Successfully solving it allows temporary access, while failing to solve it or choosing not to prevents access, helping to maintain focus on study or work. ### Does DrillLock have ads? No, DrillLock does not contain advertisements. The app is ad-free, ensuring an uninterrupted user experience focused on productivity. ### What are the subscription options for DrillLock? DrillLock offers a PRO subscription that unlocks multiple rules, allowlist mode, a daily temporary unlock limit, and harder math challenges. Subscription plans include 'Challenge Pack Monthly' for $2.99 with a 7-day free trial and 'Challenge Pack Yearly' for $19.99 with a 14-day free trial. ### Can I customize which apps are blocked by DrillLock? Yes, DrillLock allows for customization. You can set up scheduled locks, usage limits, and the PRO subscription enables allowlist mode for more granular control over which apps are blocked or permitted. ### Is DrillLock available on Android? Based on the provided data, DrillLock is currently only supported on iPhone. Its UI and behavior may also depend on iOS specifications. ### How often is DrillLock updated? The latest version of DrillLock is 2.0.0, last updated on August 1, 2026. This indicates a recent update, suggesting ongoing development and maintenance. ### What is the age rating for DrillLock? DrillLock has an age rating of 4+, making it suitable for a wide range of users, including younger students and adults. ## Version history (last 5 releases) ### 2.0.6 — 2026-09-05 This update brings stability improvements and minor bug fixes. ### 2.0.5 — 2026-09-01 You now get a heads-up when your PRO period ends. WHEN PRO ENDS, YOU'LL KNOW PRO features like multiple rules and allowlist mode stop working once your PRO period is over. Until now that could happen quietly, and you'd find out only when a rule you counted on wasn't running. DrillLock now sends you a notification instead. WORDING FIXES • Spanish: Screen Time now appears as Tiempo de uso, the name Apple uses in the iPhone Settings app, so the permission step is easier to follow. • Simplified Chinese: replaced text that was still showing in English and fixed wording that said the opposite of what it meant. • Removed unused text from all 13 languages. ### 2.0.4 — 2026-08-26 Fixed the weekday selector so all seven days stay readable instead of being cut off. Plus small fixes throughout. ### 2.0.3 — 2026-08-19 A major redesign of the app's structure. ■ Tab navigation Features that were crammed into a single screen are now split across four tabs: Home, Rules, History, and Settings. Checking what's blocked, editing rules, and reviewing your history each have a clear place. ■ Week-over-week comparison in History See how many times you unlocked temporarily and how many times you walked away from an unlock challenge, compared with the previous 7 days. Note: appears once two weeks of records have accumulated. ■ Stronger unlock challenges (PRO) Choose the digit count and the number of questions for the math challenge. If Hard has been too easy for you, turn it up. ■ Other ・Display cleanup ・Bug fixes ### 2.0.2 — 2026-08-14 • Added notification-based unlock from the Screen Time shield, plus clearer guidance for notification settings. • PRO users can now adjust Hard math challenge strength by number size and question count. • Fixed display issues in challenge settings and improved reliability around unlock/relock flows. ## Apps similar to DrillLock | App | Rating | Price | Category | | --- | --- | --- | --- | | [MathScroll](https://appshunter.io/ios/app/mathscroll/id6754278514) | — | Free | Productivity | | [NumLock: Math Screen Lock](https://appshunter.io/ios/app/numlock-math-screen-lock/id6761402140) | — | Free | Productivity | | [Stop Doomscrolling: Mathunlock](https://appshunter.io/ios/app/stop-doomscrolling-mathunlock/id6758373394) | — | Free | Productivity | | [MathBlocker: Stop Scrolling](https://appshunter.io/ios/app/mathblocker-stop-scrolling/id6761896675) | 5.0 (1) | Free | Productivity | | [App Blocker Vocabulary Builder](https://appshunter.io/ios/app/app-blocker-vocabulary-builder/id6752580039) | — | Free | Productivity | | [Tok Blok: Refocus App Blocker](https://appshunter.io/ios/app/tok-blok-refocus-app-blocker/id6751821992) | 5.0 (1) | Free | Productivity | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*