Comparison

Kioki vs Hello Nabu

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

Head to head
About

Kioki

Master vocabulary and real-life phrases for conversations, travel, and exams using AI-powered flashcards. Utilize spaced repetition for long-term retention and practice pronunciation with instant feedback. Study hands-free or with interactive quizzes.

Highlights
  • AI flashcard creation from notes, photos, PDFs
  • Spaced repetition for long-term memory
  • Pronunciation scoring and practice
  • Hands-free Listen Mode
  • Ready-made decks for various situations
  • Import existing decks (TXT, CSV, APKG, ANKI2)
Features
Read full description

Master the vocabulary and real phrases you'll actually use — in conversations, on your trip, and on exam day. Flashcards are how you get there: start with ready-made decks for travel, small talk, and more, or turn your own notes, photos, and PDFs into decks with AI. Then spaced repetition makes every card stick long-term. Study your way: flip through your cards, test what you studied with quizzes, practice & score your pronunciation, or review hands-free with Listen Mode on your commute. Track your streak, hit your daily goal, and pick up right where you left off on iOS or web. ---------- Why Kioki Real phrases for real conversations — learn the language people actually speak Learn Spanish, Korean, French, Japanese, and more Ready-made decks by situation: Travel, Small Talk, Food & Dining, Real Conversation, and more Spaced repetition that makes it stick long-term Quiz Mode: test what you studied Speaking Practice: say any card out loud and get an instant pronunciation score Listen Mode: hands-free review for commutes, workouts, and flights Cards with images and native audio AI flashcards from notes, photos, and PDFs — build a deck in seconds Import existing decks from TXT, CSV, APKG, and ANKI2 Share any deck with a link — friends can study it instantly, on web or in the app Daily goals and streaks to keep you consistent Seamless sync across iOS and web ---------- Pro Features Unlimited AI deck creation: Turn notes, text, or documents into full flashcard decks instantly PDF to flashcards: Upload PDFs and convert them into study material in seconds File import: Create decks from documents without manual editing Unlimited pronunciation checks: Practice speaking as much as you want ---------- Built for real learning Focus on vocabulary and expressions used in real conversations Prepare for language exams (TOPIK and more) or improve your speaking with instant pronunciation feedback Organize decks by topic, level, or goal Review with spaced repetition designed for long-term memory ---------- Stay consistent Build a daily study habit, track your progress, and stay on top of your learning goals with a simple, focused interface. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Hello Nabu

This app offers a personalized language learning experience focused on real-life situations. It uses AI to adapt lessons to your goals and context, providing instant feedback and practical vocabulary for effective communication.

Highlights
  • Personalized learning paths
  • Learn in realistic scenarios
  • AI tutor with instant feedback
  • Practical vocabulary and grammar
  • Weekly leagues and achievements
  • Focus on usable skills
Read full description

Speak a new language with an AI tutor that actually talks with you. Hello Nabu turns language learning into a story you play. Create your character, step into your own adventure, and learn by doing: real conversations, spoken role plays, and lessons written around you - your level, your goals, your pace. WHY IT WORKS - Speak from day one: voice role plays with instant pronunciation feedback - AI conversations that adapt to what you say - no scripted dialogues - Your own story adventure: personalized chapters and lessons, generated for you - Smart vocabulary review that resurfaces words right before you forget them - Sentence practice, grammar in context, and real-life scenarios - Track your progress from A1 to C2 (CEFR) and across 11 communication skills STAY MOTIVATED - XP, streaks, trophies and leagues make daily practice something to look forward to - Bite-sized sessions that fit into a coffee break - Practice Arena for quick role plays, vocabulary and sentence drills 19 LANGUAGES Learn Spanish, French, Italian, German, Portuguese, English, Japanese, Korean, Chinese, Russian, Ukrainian, Polish, Dutch, Swedish, Norwegian, Danish, Finnish, Romanian or Turkish. The app is available in English, French, Spanish, Italian, German, Portuguese and Indonesian. Start your adventure today - your tutor is waiting. SUBSCRIPTION Hello Nabu Premium is an optional auto-renewable subscription (monthly or quarterly). Payment is charged to your Apple Account and renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Terms of Use (EULA): https://www.hellonabu.com/terms/ Privacy Policy: https://www.hellonabu.com/privacy/

Screenshots

Kioki4 screens
Hello Nabu4 screens

Verdict

The call

The clearest difference is review sentiment: Hello Nabu at 100% against Kioki's 33%. Hello Nabu also leads on ads (none vs shown) and monetization model (ad-supported vs free with in-app purchases). Kioki's advantage is rating (4.7 vs 4.3) and update cadence (every 6 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement 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. Kioki sells 2 in-app purchases, starting at $9.99 per month and Hello Nabu sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Kioki holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Kioki has 44 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 33% of Kioki's written reviews are positive against 100% of Hello Nabu's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Kioki ships an update every 6 days, Hello Nabu every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
Kioki versus Hello Nabu: the parameters behind the verdict, then further details
ParameterKiokiHello Nabu
PriceFreeFree
Rating4.7 (44 ratings) — better4.3 (7 ratings)
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings44 — better7
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size62 MB83 MB
Age rating4+4+
DeveloperLucidcraft Studio, Inc.Hello Nabu

Customer experience

Kioki

All ratings44 ratings
Positive93.2%
Neutral2.3%
Negative4.5%
Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

Hello Nabu

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Kioki

Subscriptions2
  • Kioki Premium7 Days trial$9.991 Month
  • Kioki Premium - Yearly7 Days trial$39.991 Year
2 purchases

Hello Nabu

Subscriptions2
  • Premium monthly7 Days trial$12.991 Month
  • Premium quarterly7 Days trial$24.993 Months

Questions

Is Kioki free?
Kioki is free to download, with in-app purchases available.
Is Hello Nabu free?
Hello Nabu is free to download, with in-app purchases available.
Which has better reviews, Kioki or Hello Nabu?
Kioki is rated higher. Kioki averages 4.7 out of 5 from 44 ratings, while Hello Nabu averages 4.3 from 7 ratings.
Do Kioki or Hello Nabu have ads?
Kioki shows ads; Hello Nabu does not.
Which is updated more often, Kioki or Hello Nabu?
Kioki ships an update every 6 days, and Hello Nabu every 3 weeks. Most recently, Kioki was updated on October 30, 2026 and Hello Nabu on October 31, 2026.

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