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Sphinx: Screen Time Puzzles

Brain puzzle app blocker
Kevin Nguyen · Productivity
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★ 5.00average rating
1ratings
+1new ratings, last 7 days
—not in top charts now

Ratings breakdown

★★★★★
100%
★★★★
0%
★★★
0%
★★
0%
★
0%
🔒 Rating history24 days of daily rating and rating countGet Pro access

App info

Developer
Kevin Nguyen
Category
Productivity
Released
Sep 15, 2026
Version
1.3 (Oct 21, 2026)
Price
Free
Size
10.3 MB
Requires
iOS 17.0
Age rating
4+
Languages
English

In-app purchases

Sphinx Pro$4.99
Sphinx Pro$29.99
Current prices, App Store US.
🔒 Price history5 snapshots: when prices changed and new plans appearedGet Pro access

About Sphinx: Screen Time Puzzles

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 brain 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…
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