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Flashcard Blocker

Replace
scrolling
with flashcards

Block → Review → Unlock

Open Instagram or TikTok and a flashcard comes first. Learn a word, then your app unlocks.

7-day free trial · No account · Works offline

LearnScreen shield: Instagram is blocked until you answer one flashcard
11
Languages to learn
1000+
Words in each language
0
Accounts needed

Every scroll
starts with a word

When you open a blocked app, LearnScreen shows a vocabulary flashcard first. Answer it and the app unlocks — a form of passive learning and microlearning that fits into your day without a single study session. The cards come from 198 word lists across 11 languages — every one of them readable here before you install anything.

Replace scrolling with flashcards Choose your time thieves: pick which apps get a flashcard first One lesson before you can scroll: the shield asks a word Learn any of 11 languages Your words, folders and progress Block only when you need focus: schedules

Simple tools,
real results

App Blocking

Block any apps or categories that waste your time. Uses Apple's Screen Time API — no workarounds possible.

  • Block social media, games, anything
  • Auto-locks after unlock expires
  • Works even in the background

Word Directories

Curated vocabulary lists organized by topic. Animals, food, travel, business — pick what interests you.

  • 1000+ words per language
  • Organized by category and topic
  • Add your own custom words

Progress Tracking

See your learning streak, daily stats, and how many words you've mastered. Small wins add up.

  • Daily streak counter
  • Words reviewed & learned stats
  • Visual progress for each word

Offline-First & Private

No accounts. Vocabulary works fully offline. Optional iCloud backup goes to your own iCloud, not our servers.

  • No sign-up or login
  • Works offline once installed
  • Optional iCloud backup (your account)

How it works

1 · Choose your time thieves

Pick the apps and categories that pull you in: social media, games, news. LearnScreen locks them with Apple’s Screen Time.

2 · A word comes first

Open a blocked app and a flashcard appears right on the shield. Recall the word in a few seconds.

3 · The app unlocks

Answer and the app opens for a while, then locks again by itself. Every scroll leaves you one word richer.

Your data, your iCloud

No accounts to create. Vocabulary works offline. If you choose, your progress backs up to your own iCloud (not our servers) so you can restore it after reinstalling. Anonymous usage analytics help us improve the app.

Questions

How does it block apps? ▼
LearnScreen uses Apple's official Screen Time API (FamilyControls). When you open a blocked app, iOS shows a shield screen with your vocabulary flashcards. It works system-wide — even in the background.
Can I bypass the block? ▼
The block uses Apple's native Screen Time framework, so blocked apps can't be opened without reviewing flashcards first. After you complete a review session, the app unlocks for a calculated period (from 15 minutes up to a few hours, depending on your settings). It re-locks automatically when the unlock period expires.
What languages are supported? ▼
LearnScreen supports 11 languages: English, German, Spanish, French, Italian, Japanese, Korean, Polish, Portuguese (Brazilian), Russian, and Chinese. Each language has 1,080 curated words organized into 18 directories by topic. You can also add unlimited custom words in any language.
How much does it cost? ▼
LearnScreen starts with a 7-day free trial. After that it is a monthly or annual subscription; the price for your country is shown in the App Store before you subscribe. Cancel anytime in your Apple ID settings.
Does it need internet? ▼
Daily use works offline — all 1,080+ words are bundled with the app, and shields fire on the lock screen without any network. Internet is needed only for restoring purchases and for the optional iCloud backup that syncs your progress to your own iCloud (not our servers). No account required.
Where is my data stored? ▼
On your device by default. If you’re signed into iCloud, your vocabulary progress backs up to your own iCloud (Apple, not us) so you can restore it after reinstalling or switching iPhones. We never see your words. We use anonymous usage analytics (no personal data, no email) to understand which features matter and fix bugs.

Turn screen time
into learn time

Start with a 7-day free trial. No account needed.

Download on the App Store