Glosso vs Flashcard Blocker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Glosso
This app helps you reduce screen time by gamifying language learning. You earn access to your chosen apps by completing short vocabulary exercises in one of nine supported languages. It uses a spaced repetition system to help words stick.
- App blocking based on language learning
- Vocabulary practice in 9 languages
- Gamified progression with creature growth
- Unlockable cosmetics and customization
- Spaced Repetition System (SRS) for memorization
- Privacy-focused, uses Apple's Screen Time API
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Your apps are held hostage. Glosso holds the keys. Feed him few minutes of words in 9 languages. He grows. Instagram unlocks. You earned it. WHO IS GLOSSO? Glosso is a small creature who lives on your phone and eats words for a living. He owns a cowboy hat. Sometimes a crown. He has moods. He has a pantry. He has a strong opinion about how much you scroll. HOW IT WORKS 1. You pick the apps Glosso guards: Instagram, TikTok, X, YouTube, Reddit, whatever is eating your day. 2. You tap one of them. iOS Screen Time hands the keys to Glosso. 3. Glosso makes you match words in the language you're learning,from 1 to 15 minutes, English paired to Japanese, French paired to Korean, your call. 4. You finish. Your apps open. Glosso eats. The word goes in his pantry. 5. Repeat tomorrow. He grows: baby, teen, adult, legend. WHY IT WORKS Other blockers fight you. You uninstall them by Friday. Glosso doesn't fight you he just won't open the door until you've done the thing. And the thing is fun. Word-matching is the only "productive" task your brain accepts when it is already begging for dopamine. The trick: by the time you finish few minutes of vocabulary, the urge to scroll has quietly died. You either open Instagram and bounce, or you don't bother. Either way, the pantry got fuller. WHAT YOU GET • 4 growth stages: baby, teen, adult, legend • 47+ unlockable cosmetics: hats, forms, moods, seasonal drops and we keep on adding more • 8 signature colors assigned from your first name, no two friends get the same Glosso • A pantry that remembers every word you have ever fed him • Streaks, stats, a progress bar that actually means something • SRS method (the same spacing that powers Anki and Babbel) words stick 9 LANGUAGES, DAY ONE English, French, Spanish, Italian, German, Portuguese, Arabic, Japanese, Korean. Learn Japanese through English, Korean through French , whatever combination your brain wants. No paywalled language packs. All nine included from the first tap. PRIVACY Glosso runs on Apple's Screen Time API, the same framework iOS uses for its own parental controls. No VPN. No profile to install. No passcode backdoor. Your app data never leaves the device. Feed him words. Starve the scroll. Made in Paris. No investors. No tracking. LICENSED APPLICATION (EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy : https://glosso.fr/fr/privacy
Flashcard Blocker
Transform idle screen time into vocabulary learning opportunities. This app blocks distracting apps, replacing your urge to scroll with educational flashcards. Learn new words passively throughout the day without dedicated study sessions.
- 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
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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.
Screenshots
Verdict
The clearest difference is ratings volume: Flashcard Blocker at 4 against Glosso's 1. On price, rating, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Glosso sells 3 in-app purchases, starting at $4.99 per month and Flashcard Blocker sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Glosso against 5.0 for Flashcard Blocker. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
Glosso ships an update every 8 days, Flashcard Blocker weekly. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.
| Parameter | Glosso | Flashcard Blocker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 8 days | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 81 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexandre Siguret | Roman Grunin |
Customer experience
Glosso
Flashcard Blocker
In-app purchases
Glosso
- Glosso Mensuel7 Days trial$4.991 Month
- Annuel7 Days trial$24.991 Year
- Lifetime$89.99
Flashcard Blocker
- PRO - Monthly7 Days trial$4.991 Month
- PRO - annual7 Days trial$19.991 Year
- PRO - Lifetime$59.99





