Comparison

HelloWords vs OnninMemo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HelloWords

Learn new languages through engaging, visual word games. This app uses a spaced repetition system and strategically selected vocabulary to make learning efficient and fun in just 3 minutes a day. Track your progress with detailed statistics.

Highlights
  • 29 languages available
  • Spaced Repetition System (SRS)
  • Game-based vocabulary learning
  • Advanced learning statistics
  • Strategically selected vocabulary
  • Fragmented learning (3 minutes/day)
Features
Read full 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 review, helping strengthen memory and support long-term learning progress. [LEARN VOCABULARY YOU'LL ACTUALLY USE] Unlike traditional vocabulary lists, HelloWords focuses on practical words and expressions that appear in everyday life. Topics include: • Travel • Food • Shopping • Work • Daily Conversations Learn vocabulary you'll actually use when communicating, traveling, studying, or exploring a new culture. [TRACK YOUR LEARNING PROGRESS] After each study session, you can review your learning progress, including the words you've studied and the vocabulary you've already mastered. [LEARN IN JUST 3 MINUTES A DAY] Busy schedule? No problem. HelloWords is designed for short, focused learning sessions that fit naturally into your daily routine. Just a few minutes a day can help you steadily improve your vocabulary and language skills. Start building your vocabulary today and discover a more enjoyable way to learn languages. Questions or feedback? Email: hellowords@hellotalk.com Privacy Policy: https://www.hellowords.com/privacy-policy Terms of Service: https://www.hellowords.com/terms-of-service

About

OnninMemo

Features
Read full description

OnninMemo — 不再有「423 張待複習」的壓力。 傳統記憶卡工具讓人放棄。OnninMemo 從零設計,只為一件事:讓你每天 5 分鐘就好,長期維持。 智能複習池 不再看到「待複習 423 張」這種絕望數字。系統每天只挑最重要的 N 張給你,N 你自己決定。 連續學習 streak 每天打開、複習、保持連續紀錄。看著火焰天數增加,自然養成習慣。 Excel / CSV 一鍵匯入 從電腦準備好整批單字,丟進 App 就建好牌組。支援中英文欄位、自動建標籤。 內建字典 + 發音 新增卡片時點查字典,自動填中文解釋與例句。學英文單字時可用內建系統發音聽正確讀音。 圖片記憶 為每張卡加圖,加強視覺記憶。圖片自動壓縮、雲端同步,不佔手機空間。 多裝置同步 電腦上批量編輯,手機上隨時複習。所有資料同步,記憶不間斷。 錯題本 / 收藏 經常忘的卡會自動進錯題本;重要單字可標為收藏,考前一次複習。 離線完全可用 搭飛機沒網?照樣複習。連線恢復後自動同步進度。 設計哲學 - 低壓力:不嚇人,不催促 - 手機優先:單手可操作 - 現代 UI:不像 90 年代的工具 - 真免費:核心功能完全免費 適合誰? - 準備多益、托福、雅思的學生 - 想學旅遊英文、商業英文的上班族 - 任何需要記東西的人(法律、醫學、潛水、健身名詞...) 隱私保護 - 不收集精確位置、聯絡人、健康資料 - 不投放廣告 - 不販售你的資料 - 可一鍵永久刪除帳號 開始你的記憶旅程,從今天的 5 分鐘開始。

Screenshots

HelloWords4 screens
OnninMemo4 screens

Verdict

The call

The clearest difference is in-app purchases: OnninMemo at none against HelloWords's 8. OnninMemo also leads on ads (none vs shown) and update cadence (every 3 days vs every 6 weeks). On price and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HelloWords sells 7 in-app purchases, starting at $10.99 per month. OnninMemo asks for nothing beyond the download.

UpkeepUpdate frequency

HelloWords ships an update every 6 weeks, OnninMemo every 3 days. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
HelloWords versus OnninMemo: the parameters behind the verdict, then further details
ParameterHelloWordsOnninMemo
PriceFreeFree
Rating4.4 (104 ratings) — better—
Positive reviews76.8% of reviews—
Number of ratings104 — better—
Update frequencyEvery 6 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size84 MB25 MB
Age rating4+4+
DeveloperHELLOTALK FOREIGN LANGUAGE EXCHANGE LEARNING TALK CHAT APPWEN CHENG YEH

Bugs and requests

HelloWords

Reported bugs

12 issues
  • Audio errors in multiple languages
  • App bugs and crashes mid-lesson
  • Incorrect sounds played during lessons
  • Purchase restoration issues
  • App doesn't load or freezes
Show 7 more
  • Requires frequent deletion/reinstallation
  • Login issues
  • Inconsistent audio pronunciation
  • Interface bugs (unmovable parts)
  • Images not showing after payment
  • Words don't advance
  • Sound teaching pronunciation is inconsistent

Requested features

5 requests
  • Possibility to review learned words
  • Pronunciation practice functionality
  • Instruction videos within the app
  • Add longer phrases and grammar
  • Dark mode option

OnninMemo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

HelloWords

Subscriptions6
  • HelloWords (1 Month)$10.991 Month
  • HelloWords (3 Months)$29.993 Months
  • HelloWords -3 Months$29.993 Months
Show 3 more
  • HelloWords (6 Months)$47.996 Months
  • HelloWords (1 Year)$65.991 Year
  • HelloWords (1 Year)7 Days trial$65.991 Year
One-time1
  • HelloWords(Lifetime)2 variants$149.99
None

OnninMemo

No in-app purchases

Questions

Is HelloWords free?
HelloWords is free to download, with in-app purchases available.
Is OnninMemo free?
OnninMemo is free to download, with no in-app purchases.
Do HelloWords or OnninMemo have ads?
HelloWords shows ads; OnninMemo does not.
Which is updated more often, HelloWords or OnninMemo?
HelloWords ships an update every 6 weeks, and OnninMemo every 3 days. Most recently, HelloWords was updated on October 21, 2026 and OnninMemo on October 13, 2026.

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