Lockscreen English Word
Lockscreen English Word Summary
Lockscreen English Word is a free, ad-supported, with in-app purchases Android app in Education by Wafour Edu. Released in Sep 2016 (9 years ago). It has about 6.6M+ installs and 29K ratings with a 4.35★ (good) average. Based on AppGoblin estimates, it reaches roughly 34K monthly active users and generates around $<10K monthly revenue (57% IAP / 43% ads). Store last updated Aug 28, 2026
Recent activity: 9.1K installs this week (33K over 4 weeks) showing above average growth , and 1.00 new ratings this week View trends →
SDK intelligence: AppGoblin detected 20 ad networks(e.g. Criteo), 7 development tools, 3 business tools, 2 analytics: product,and 1 mediation integrated into Lockscreen English Word. View full SDK list →
Lockscreen English Word SDKs Summary
Lockscreen English Word was last scanned for SDKs on 2026-08-14. Below is the overview of third-party companies detected in the app. The full list of SDKs, permissions and unknowns is available here.
Sentry.io
Bumptech
Google
Unity
Criteo
PubMatic
Naver
Pangle
Kakao
LinkedIn
AdMob
Firebase
Google Analytics4.35★
Ratings: 29K
Screenshots
App Description
Memorize English words with pictures, lock screen review.
Learn English words naturally by seeing them again and again.
Lockscreen English Word Alarm helps you review vocabulary on your lock screen, save words from photos, and test your memory with quizzes.
Learn with images, pronunciation, and example sentences to understand each word and how it's used.
✔ Review Words Every Time You Check Your Phone
See English words on your lock screen whenever you check your phone. Even without a dedicated study session, you can keep reviewing vocabulary throughout the day.
✔ Build Your Own Word Lists from Photos
No need to type vocabulary words one by one. Take a photo or choose an image from your gallery, and the app recognizes multiple English words. Select the words you need, add them to your own word list, and review them anytime.
✔ Remember Words with Images
Learn each word with multiple related images. Connect words with images instead of memorizing definitions alone, making them easier to remember and recall.
✔ Learn Meaning and Usage with Examples
See how words are actually used in sentences. Study with images, pronunciation, meanings, and example sentences to better understand each word. Dictionary meanings are available in 23 languages.
✔ Word Lists for Different Levels and Goals
Choose from vocabulary lists for beginners, school-level English, SAT, TOEIC, TOEFL, civil service exams, and more. Pick the word list that matches your level and goal.
✔ Focus on the Words That Matter
Save important or difficult words to Favorites so you can easily find and review them again.
✔ If You Can't Hear the Pronunciation
1. Install "Google TTS" from Google Play.
2. Go to Settings → Language & Input → Text-to-Speech (TTS).
3. Set Google TTS as the preferred engine.
4. Open the Google TTS settings.
5. Go to Install Voice Data and install the English voice data.
6. Make sure your phone's media volume is turned up.
If you still can't hear the pronunciation, try deleting the English voice data and installing it again.
✔ Why We Request These App Permissions
- READ_PHONE_STATE: Used to pause the app so it doesn't interfere with phone calls. (Optional)
- ACCESS_FINE_LOCATION: Used to provide weather information based on your current location. (Optional)
- SYSTEM_ALERT_WINDOW: Used to display English vocabulary on the lock screen. (Required)
- POST_NOTIFICATION: Used to send notifications related to app services. (Optional)
✔ Notice: The lock screen display feature is used for English vocabulary learning.
✔ Lockscreen English Word Alarm provides location-based weather information for your convenience.
✔ Customer Support
E-Mail: support@wafour.com
Phone: +82-70-4336-1593