You looked it up. You forgot it. Again. Save a word the moment you meet it — in a book, a video, a conversation — and meet it again on your lock screen.
You looked it up. You forgot it. Again.
Lockcard is your personal vocabulary notebook. Save a word the moment you meet it, keep the sentence it came from, and see it again on your lock screen until it sticks.
SAVE WORDS WHERE YOU MEET THEM
• Look up any word in the app and it's saved automatically, with an example sentence
• Capture words from articles, PDFs, and web pages with the Lockcard Chrome extension, synced to your iPhone
• Add words from books, podcasts, or a conversation you just had
• Organize everything into Collections
KEEP THE CONTEXT, NOT JUST THE WORD
• Every word keeps its original sentence and source
• Word Journey shows where a word came from, when you saved it, and how you've reviewed it
• AI explanations and examples tailored to you, plus follow-up questions about any word
REVIEW WITHOUT BUILDING A NEW HABIT
• Your words on the lock screen and home screen widgets
• Notification flashcards that bring words back before you forget them
• AI word podcasts for passive listening
NEW: ELEVATE PRACTICE
• Flashcards built from the words that most need review
• Flip the card, or recall the word from a fill-in-the-blank sentence
• Quick 5, Daily 12, or Deep 25, with daily streaks
MADE FOR LEARNERS WHO ALREADY LIVE IN ENGLISH
If you read articles, watch videos, or prep for IELTS, TOEFL, or GRE, and keep running into words you don't know, Lockcard turns them into a vocabulary library that's entirely yours.
What learners say:
"Y'all are amazing. Ever since I started using Lockcard, it's become something I use daily" — James, high school student
"Super helpful especially with my busy schedule" — Peng, international university student
"The simplicity and beautiful designs make it such a delight to use" — Charlotte
"One of the most impressive apps I've used in a long time!" — Jordan
By downloading this app, you agree to Apple's standard End User License Agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
My phone is currently 17.5.1 And since quite a while ago the app's "notification per day" won't work anymore. I didn't receive any notification at all. Is it because this is a pay function now? Please advise. I tried the free trial (7 days) version...but too no avail. Want to make sure it's not a bug issue before I pay for the app. Please advice. Thank you.
Developer Response
Hi LL2010, thank you for the detailed message, and sorry for the confusion.Push notifications are still supported. In newer versions, notification content and learning progress can be customized, so please go to the Learn Later tab and configure them under Notification Flashcard.Also, please make sure notifications are enabled in iOS Settings and that you’re using the latest version of the app. If you still don’t receive notifications after setup, please contact us through the app’s support/contact option with your iOS version and device model so we can investigate further.
Great app for learning vocabulary
szetosarahg
This app is great for learning new vocabulary. The format is easy to use and aesthetically pleasing. The repeated learning of a word helps me because I often forget the definition of a word after the first time I read it. I've already learned many new words and I’m surprised that more people don't use this app.
Upload our own list
JessiKA124#
I love this app! It is really useful in reviewing vocabularies. However, I do hope there could be a “upload” button. Therefore I can upload all the vocabularies I need to review without needing to type them in one by one through the search bar. Thank you!
Great for ESL students
ca90017dtla
I recommend LOCKCARD to all advanced ESL learners, it only GRE, TOEFL test learners but also college students and professionals. Personally speaking, if the app could tell(analyze) how many words I’ll memorize based on my progress(data), and predict how far I’m away from my goals, I’d be happy to subscribe!
Developer Response
Thank you for your comment and feedback! We will definitely do that very soon! Please stay tuned:)
New: Elevate Flashcard Practice
Turn your saved words into real practice with the new Elevate tab.
• Flip & Swipe: Tap a card to see its meaning. Swipe right for "Got it", left for "Again".
• Smart Selection: Elevate picks the words that most need review, in the language you're learning.
• Words in Context: Cards switch between the word and a fill-in-the-blank example sentence.
• Your Pace: Choose Quick 5, Daily 12, or Deep 25, or practice a Collection or your mastered words.
• Undo: Swiped the wrong way? Undo your last card.
• Streaks: Every finished set counts toward your daily streak.
• Go Deeper: Tap a word to open its details and hear its pronunciation.
Improvements
• Updated for iOS 26 with a refreshed tab bar.
• Faster, more reliable AI search and pronunciation.
• The game widget now shows a completion message when you finish a set.
• Clearer Feedback pages, and Word Journey now tracks where words came from more accurately.
Bug Fixes
• Widgets now stay in sync with the app, and holiday widget words refresh on time.
• The learning language you choose during onboarding is now saved correctly.
• Fixed avatar taps occasionally not responding.
Version 3.3.0
The developer, xinyi fu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Search History
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
xinyi fu
Size
120 MB
Category
Education
Compatibility
Requires iOS 15.5 or later.
iPhone Requires iOS 15.5 or later.
iPod touch Requires iOS 15.5 or later.
Mac Requires macOS 12.4 or later and a Mac with Apple M1 chip or later.
Apple Vision Requires visionOS 1.0 or later.
Languages
English and 7 more
English, French, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese, Vietnamese
