# Flashcard Blocker–LearnScreen — Block Apps & Memorize Words

> Learn vocabulary passively by blocking distracting apps on your phone. (iPhone/iPad app by Roman Grunin.)

- Source: https://appshunter.io/ios/app/flashcard-blockerlearnscreen/id6759922571 (this page in markdown: same URL + `.md`)
- Developer: [Roman Grunin](https://appshunter.io/developer/1696627836)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 33 MB
- Languages: American English, Dutch, French (France), German (Germany), Hindi, Italian, Japanese, Korean, Polish, Brazilian Portuguese and 8 more
- Released: 2026-04-08
- Data updated: 2026-08-20
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/flashcard-blockerlearnscreen/id6759922571/reviews.md

## What is Flashcard Blocker?

Every time you reach for Instagram, TikTok, or YouTube, LearnScreen shows you a vocabulary flashcard instead.

Turn screen time into learn time — 1,000+ new words a year, passively.

You don't fight the phone. You don't add another daily study session. You learn in the exact moments you'd otherwise be scrolling.

WHY LEARNSCREEN

The average person unlocks their phone 96 times a day. That's 96 wasted micro-moments — or 96 chances to actually learn something. Most language apps fail because they require willpower and a daily streak. Most screen-time blockers fail because they require willpower too. LearnScreen needs neither. It hijacks the impulse you already have and turns it into vocabulary.

KEY FEATURES

• Smart app blocker — Block distracting apps like TikTok, Instagram, YouTube, X, Reddit, Snapchat with one tap
• Vocabulary flashcards on every unlock — Learn words in 11 languages: English, Spanish, German, French, Italian, Portuguese, Russian, Polish, Japanese, Korean, Chinese
• Spaced repetition (SM-2, Anki-style, Leitner system) — Words come back at the optimal interval so they actually stick
• 1,080+ curated words built in — Or add your own custom word lists
• Streak tracking — Build a daily learning habit without daily lessons
• Focus mode and Dumb Phone mode — Get the discipline of a feature phone without buying one
• Digital detox built in — Less mindless scrolling, more real knowledge
• 100% offline and private — No account needed, no data leaves your device
• Designed for iPhone — Native, fast, minimalist, no ads

HOW IT WORKS

1. Pick which apps to block — TikTok, Instagram, or whatever steals your time
2. Try to open a blocked app
3. A flashcard appears: a foreign word with translation and pronunciation
4. Answer correctly and the app unlocks for a short window
5. Words you learn repeat at scientifically optimal intervals (spaced repetition)
6. Over weeks, your vocabulary compounds while your screen time falls

PERFECT FOR

• Language learners building vocabulary for English, Spanish, German, French, Italian, Portuguese, Russian, Polish, Japanese, Korean or Chinese
• Students preparing for exams (TOEFL, IELTS, SAT, GRE)
• Adults rebuilding a daily learning habit
• Anyone trying to reduce phone addiction or mindless scrolling
• People curious about dumb phones who still need a smartphone
• Digital minimalists, ADHD-friendly focus seekers, parents managing their own screen time

WHAT MAKES IT DIFFERENT

Duolingo asks you to open another app. LearnScreen meets you where you already are — the lock screen. No daily streak guilt. No tutorial maze.

Anki is the gold standard for memory but has a steep curve. LearnScreen ships the same SM-2 spaced-repetition algorithm with zero setup — preloaded words, instant card flow, automatic intervals.

Pure screen-time blockers (Opal, one sec, ScreenZen) make scrolling harder. LearnScreen makes the alternative more rewarding: every blocked unlock returns something you keep.

THE SCIENCE

Spaced repetition has been studied for 40+ years — from Ebbinghaus's forgetting curve to modern SM-2 and FSRS implementations. The algorithm shows you each word right before you'd forget it, so 5 reviews lock a word in long-term memory. LearnScreen runs SM-2 by default.

Terms of Use: https://learnscreen.vercel.app/terms.html
Privacy Policy: https://learnscreen.vercel.app/privacy.html

Start turning screen time into learn time. Download LearnScreen.

## Key features

- Smart app blocker for social media and video apps
- Vocabulary flashcards on every phone unlock
- Spaced repetition learning algorithm
- 1,080+ curated words or custom lists
- Streak tracking for daily learning habits
- Focus and Dumb Phone modes
- 100% offline and private

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| PRO - Monthly | $1.99 | per month |
| PRO - annual | $9.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PRO - Lifetime | $59.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/flashcard-blockerlearnscreen/id6759922571/reviews.md

### 5/5 — So far really good

*2026-04-14*

Ive currently only gotten like teo words learnt but im also extremely early in learning! The creator had actually talked to me to help make it down grade to IOS 18 so I was able to use it, the only issue ive had so far is that when your selecting apps to block the menu will glitch and you have to reselect everything again, I had to reselect like 6 times because it kept resetting but from what I can see is that it just struggles to keep multi the folders open at once or something? But regardless of that, its been very helpful and I wouldnt say that makes it any less than a 5 star :]

**Developer response:** Thank you for the detailed feedback🙏
The app selector bug fix is in progress. Glad we got iOS 18 working for you!

## Frequently asked questions about Flashcard Blocker

### Does Flashcard Blocker have ads?

No, Flashcard Blocker is designed to be ad-free, providing an uninterrupted learning experience.

### What languages does Flashcard Blocker support?

Flashcard Blocker supports learning words in 11 languages: English, Spanish, German, French, Italian, Portuguese, Russian, Polish, Japanese, Korean, and Chinese.

### How does Flashcard Blocker's learning method work?

It utilizes a spaced repetition system (SM-2, Anki-style, Leitner system) to present words at optimal intervals, ensuring they are retained effectively.

### Can I add my own words to Flashcard Blocker?

Yes, in addition to over 1,080 curated words, you can add your own custom word lists to personalize your learning experience.

### What devices is Flashcard Blocker available on?

Flashcard Blocker is currently designed for iPhone devices.

### What are the subscription options for Flashcard Blocker?

Flashcard Blocker offers a PRO subscription with monthly ($1.99/P1M) and annual ($9.99/P1Y) plans, both including a 7-day free trial.

### How does Flashcard Blocker compare to other screen time blockers?

Unlike other blockers that simply make scrolling harder, Flashcard Blocker makes the alternative more rewarding by turning each blocked unlock into a learning opportunity.

### Is Flashcard Blocker suitable for exam preparation?

Yes, the app is perfect for students preparing for exams like TOEFL, IELTS, SAT, and GRE by helping them build essential vocabulary.

## Version history (last 5 releases)

### 2.2.3 — 2026-08-18

You can now rate LearnScreen right in the app — plus small fixes and improvements.

### 2.2.2 — 2026-07-22

Bug fixes and improvements.

### 2.2.0 — 2026-07-14

• Unlock by choosing the answer — a new lock-screen review: pick the right translation to unlock, next to the classic flip. Turn it on in Settings.
• Streak Freeze — miss a day or plan a break? Freeze a day from the streak calendar and keep your streak alive.
• Folders — group your words into custom folders, each with its own emoji.
• Smoother onboarding and lots of polish.

### 2.1.2 — 2026-06-26

• Blocking entire categories (Social, Games, etc.) now works reliably
• Fixed the Apps tab redrawing when returning to the app
• Stability improvements

### 2.1.0 — 2026-06-12

Smarter sessions, friendlier locks.

• Review in tidy batches of 12 — big queues clear one comfortable step at a time.
• New home & lock screen widget: a word from your list, changing through the day.
• Live countdown on the Lock Screen and Dynamic Island while your apps are unlocked.
• Pick apps to block right in the app — Apple's native picker, zero fuss.
• Timee the panda now greets you on the block screen.
• Find, sort and bulk-edit your words in seconds.
• Plus lots of fixes: smoother re-locking, more reliable backups.

Less doomscrolling, more progress. Thanks for learning with us!

## More apps by Roman Grunin

- [Helpful Phone: One Thing](https://appshunter.io/ios/app/helpful-phone-one-thing/id6757953098)

All apps by Roman Grunin: https://appshunter.io/developer/1696627836

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*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 2026-08-20.*