ChessLock vs Sphinx

Take control of your screen time like never before—with your brain as the key! Screen Time Control: ChessLock is a powerful focus tool that blocks distracting apps… and makes you earn your breaks by solving chess puzzles. Designed for those who want real productivity with a fun twist, ChessLock combines proven focus techniques with the timeless game of chess to help you stay in control. - How it works: Create a Focus Session Select the apps you want to block. Once it starts, you're locked in—no cheating allowed! Pause With Purpose Want a break? Solve a chess puzzle to unlock it. No puzzle, no pause. Train Your Brain Each puzzle challenge helps keep your mind sharp and focused. - Unlock More with ChessLock Pro Unlimited focus sessions Choose your puzzle difficulty Smarter, stronger app blocking Earn meaningful breaks More brain-boosting control - Why Chess? Chess is the perfect game to sharpen concentration, improve problem-solving, and help reset your brain during focused work. It’s not just screen time management — it’s brain time empowerment. - Private by Design No accounts, no personal data collection, no creepy tracking. Your preferences are stored locally, and analytics are completely anonymous. You stay in control. - Built for Everyone Whether you’re a student, freelancer, parent, or pro, ChessLock gives you a mindful, brain-powered way to manage your screen time. Download Screen Time Control: ChessLock and make every pause a power move.

Most app blockers ask you to have willpower. Sphinx asks you to have two minutes and a working brain. Lock the apps that eat your evening. When you want back in, you don't tap "ignore" — you solve a chess puzzle. HOW IT WORKS 1. Pick the apps you want locked, and choose how long the lock lasts. 2. Open one of them and you hit the Sphinx shield instead. 3. Solve a puzzle to buy back five minutes. Solve more for longer. EACH UNLOCK COSTS MORE THAN THE LAST The first unlock in a lock window costs one puzzle. The second costs two. The third costs three. After that, you wait until the window ends. The price is on screen before you commit, so a long session never feels free. PUZZLES, NOT TIMERS • 2,499 mate-in-one chess puzzles, every one verified solvable • Number pattern puzzles if chess isn't your thing • Everything is solved on device, so no connection is needed NO ESCAPE HATCH There is no "just this once" button, no snooze, no early exit. A lock window runs until it ends. Apps inside one can't even be removed from your list until it does. PRIVATE BY DESIGN Sphinx never learns which apps you locked. Your selection is handled entirely by Apple's Screen Time framework and stays on your device. No account, no sign-up, no tracking. LIGHT AND DARK Pick either, or follow your phone. — Sphinx uses Apple's Screen Time permission to lock and unlock the apps you choose. It cannot see your activity in those apps, and it cannot see which apps you selected. Sphinx Pro is an auto-renewable subscription: $4.99 per month or $29.99 per year. The yearly plan includes a 7-day free trial for new subscribers; unless cancelled at least 24 hours before the trial ends, the yearly subscription begins automatically. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel it in Settings on your device. Privacy Policy: https://kevinnguyen2321.github.io/sphinx-privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/