HelloWords: Vocabulary Builder
HelloWords: Vocabulary Builder Summary
HelloWords: Vocabulary Builder is a free, with in-app purchases iOS app in Education by HELLOTALK FOREIGN LANGUAGE EXCHANGE LEARNING TALK CHAT APP. Released in Feb 2020 (6 years ago). It has 729 ratings with a 4.54★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 415 monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store last updated Sep 3, 2026
SDK intelligence: AppGoblin detected 4 development tools(e.g. Google), 2 ad networks, 2 analytics: attribution, 1 analytics: product,and 1 business tools integrated into HelloWords: Vocabulary Builder. View full SDK list →
HelloWords: Vocabulary Builder SDKs Summary
HelloWords: Vocabulary Builder was last scanned for SDKs on 2026-04-20. Below is the overview of third-party companies detected in the app. The full list of SDKs, permissions and unknowns is available here.
Google
Facebook
Flutter
nanopb
OpenID
AppsFlyer
Branch
Firebase
ThinkingData4.54★
Ratings: 729
Screenshots
App Description
BUILD VOCABULARY FASTER IN 29 LANGUAGES
HelloWords helps you build vocabulary through fun word games, AI-powered stories, smart review systems, and practical everyday words. Whether you're learning English, Spanish, Japanese, Korean, French, German, or another language, you can make steady progress in just a few minutes a day.
[29 LANGUAGES AVAILABLE]
Learn vocabulary in any of the following languages for FREE:
English, Chinese, Cantonese, Japanese, Korean, French, German, Italian, Spanish, Portuguese, Russian, Arabic, Vietnamese, Turkish, Thai, Norwegian, Polish, Dutch, Swedish, Hindi, Indonesian, Hungarian, Danish, Icelandic, and Hebrew.
Whether you want to learn English, improve your Japanese vocabulary, study Korean, practice Spanish, or explore a completely new language, HelloWords makes learning simple and enjoyable.
[LEARN THROUGH FUN WORD GAMES]
Vocabulary learning doesn't have to be boring.
HelloWords transforms vocabulary practice into engaging game experiences designed to help you remember words more effectively.
Features include:
• Drag-and-drop word games
• Word matching challenges
• Multiple-choice vocabulary quizzes
• Smart SRS-based review
Each game is designed to help you recognize, understand, and remember vocabulary while keeping learning fun and motivating.
[PRACTICE VOCABULARY WITH AI STORIES]
Once you've learned new words through games, it's time to see them in action.
HelloWords uses AI-generated stories to help you understand how vocabulary is naturally used in real-life situations. Learning words in context makes them easier to remember and more useful when communicating.
Features include:
• AI-generated vocabulary stories
• Personalized stories using words you've already learned
• Context-based vocabulary learning
• Story-based review experiences
Rather than memorizing isolated words, you'll encounter vocabulary inside engaging stories that reinforce meaning, usage, and recall.
[SMART REVIEW WITH SPACED REPETITION]
Stop forgetting the words you learn.
HelloWords uses a Spaced Repetition System (SRS) based on the Ebbinghaus Forgetting Curve to help you review vocabulary at the right time. By revisiting words at optimized intervals, you can improve retention and build long-term vocabulary knowledge more efficiently.
Words you've learned through games and stories are automatically scheduled for revi