1Lock: Learn to Unlock

Hit your daily limit, and your apps lock. Pass a short quiz, and they open again. 1Lock turns scrolling time into study time. Choose the apps you open without meaning to, set a daily limit, and 1Lock seals them when you reach it. A five-card language quiz opens them again. LEARN WHILE YOU UNLOCK • Spanish, Mandarin, Japanese, and English • Five cards per quiz: choose the meaning, listen and choose, or type the answer • Words come back just before you are likely to forget them (spaced repetition) • Free starter cards in every language, so a sealed app can always be opened • Plus adds Beginner, Intermediate, and Advanced levels, example sentences, short readings, and speaking practice BUILT FOR EACH LANGUAGE • Mandarin: simplified characters, with pinyin and tone marks you can switch on or off • Japanese: kanji, kana, and romaji. Turn the reading off once you know it • Spoken cards use the voice already on your iPhone YOU SET THE STRICTNESS • Soft seal: a few short pauses each day, then the quiz • Hard seal (Plus): no pause button. The quiz is the way through • Parent PIN: keeps rule changes behind a four-digit PIN on the same iPhone PRIVATE BY DESIGN • No account, no ads, no third-party analytics • Lessons, progress, and rules stay on your iPhone • Speaking is recognized on your iPhone. Audio and transcripts are not stored or sent off the device • 1Lock never sees the names of the apps you choose BE CLEAR ABOUT LIMITS 1Lock uses Apple's Screen Time to seal the apps you choose. You can turn off Screen Time permission in Settings, or delete 1Lock, and the seal stops. Don't choose Phone, Messages, or any app you need in an emergency. Speaking checks that you said the right words. It does not score your accent or tone. 1LOCK PLUS • A yearly subscription or a one-time lifetime purchase • Covers all four languages and every level with more added in the future • Unlimited seals and the hard seal • Payment is charged to your Apple Account. The yearly plan renews automatically until you cancel at least 24 hours before the end of the current period. Manage it in Settings. • Family Sharing is supported for both options Privacy Policy: https://1lock.app/privacy Terms of Use: https://1lock.app/terms