Comparison

Koki Flashcards vs Decks

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

Head to head
About

Koki Flashcards

Master vocabulary with a smart, spaced repetition system. This multilingual flashcard app aids long-term memory retention through personalized review schedules, multimedia content, and custom card creation. Study languages effectively for exams or daily communication.

Highlights
  • Spaced Repetition System (SRS)
  • Ready-to-use vocabulary decks
  • Multimedia flashcards (images, audio, examples)
  • Custom flashcard creation
  • Personalized review schedules
  • Offline study mode
  • Cross-device synchronization
Features
Read full description

Learn vocabulary faster with Koki Flashcards, a smart flashcard app powered by spaced repetition (SRS). Create your own flash cards, study ready-made vocabulary decks, and review difficult words at the right time. Study with Anki-style flashcards and spaced repetition, with ready-made decks for English, Japanese, Chinese, Korean, Spanish, IELTS, TOEIC, JLPT, HSK, TOPIK, Minna no Nihongo, and more. SMART FLASHCARDS WITH SPACED REPETITION Koki uses a spaced repetition system (SRS) to help you remember vocabulary for longer. Difficult flashcards appear more often, while words you already know are reviewed less frequently. Your study schedule adapts as you learn so you can focus on what needs the most attention. READY-MADE VOCABULARY DECKS Start learning immediately with flashcards organized by language, level, and goal: • English vocabulary and English flashcards • IELTS vocabulary and TOEIC vocabulary • Japanese vocabulary and Japanese flashcards • JLPT vocabulary from N5 to N2 • Minna no Nihongo vocabulary • Hiragana, Katakana, and Kanji • Chinese vocabulary and Chinese flashcards • HSK vocabulary and HSK flashcards • Korean vocabulary and Korean flashcards • TOPIK vocabulary • Spanish, German, and French vocabulary • More languages and study decks CREATE YOUR OWN FLASHCARDS Koki also works as a flexible flashcard maker. Create custom flashcards in seconds and add words, definitions, translations, images, pronunciation audio, example sentences, and notes. Build vocabulary flashcards for language learning, school, exams, work, or anything you want to remember. LEARN WITH IMAGES, AUDIO AND EXAMPLES Make new words easier to understand and remember with clear meanings, helpful images, natural pronunciation audio, real-world examples, useful context, and translations. PRACTICE WRITING, PRONUNCIATION AND QUIZZES Go beyond simply flipping flashcards. Practice with: • Writing and spelling exercises • Pronunciation practice • Dictation • Matching quizzes • Multiple-choice questions • Test mode Switch between different study methods to strengthen active recall and keep reviews engaging. PERSONALIZED SRS LEARNING Koki adjusts your spaced repetition schedule based on your learning history and review results. Difficult vocabulary can return sooner, while words you remember well can wait longer. You can also customize study settings, including how many new words you want to learn each day and how frequently cards should return. STUDY ENGLISH, JAPANESE, CHINESE AND MORE Build English vocabulary for daily communication, IELTS, TOEIC, and academic study. Learn Japanese with JLPT flashcards, Minna no Nihongo, Hiragana, Katakana, Kanji, audio, examples, and SRS reviews. Study Chinese and Mandarin vocabulary with HSK flashcards, pronunciation, meanings, and spaced repetition. Koki also supports Korean, Spanish, German, French, and many other languages. WHY KOKI FLASHCARDS? Koki combines: • Smart flashcards • SRS and spaced repetition • Ready-made vocabulary decks • Custom flashcard creation • Images and pronunciation audio • Example sentences • Writing and spelling practice • Pronunciation and dictation • Multiple quiz modes • Personalized review schedules Whether you are preparing for IELTS, TOEIC, JLPT, HSK or TOPIK, studying Minna no Nihongo, learning a new language, or simply building vocabulary every day, Koki gives you a flexible way to learn and review. Create flashcards, review with spaced repetition, practice active recall, and build vocabulary that lasts. Koki Flashcards — smart vocabulary learning with flashcards, SRS, and spaced repetition. Terms of Service: https://anki.edu.vn/en/terms-of-service Privacy Policy: https://anki.edu.vn/en/privacy

About

Decks

Master new languages with smart flashcards. This app uses a proven spaced repetition algorithm to help you remember vocabulary and grammar. It offers ready-to-study decks or lets you create your own, with features like photo-to-card creation and in-depth explanations.

Highlights
  • Spaced repetition algorithm
  • Ready-to-study language decks
  • Build custom decks
  • Photo-to-card creation
  • Offline study
  • Progress tracking
Features
Read full description

Learn Spanish, Japanese, Chinese, French, German or Korean with ready-made flashcard decks, complete with native audio and pictures. Anki-style spaced repetition brings each card back right before you'd forget it. Pick a deck and start studying in seconds. Nothing to build or set up first. WHY DECKS • Ready-made decks in Spanish, Japanese, Chinese, French, German and Korean, most with native audio, some with pictures • Anki-style spaced repetition plans your reviews for you • Swipe to rate: drag the card to Easy, Good, Hard or Again, or just tap • Photo to flashcards: snap a textbook page or a word list, check the cards, then add them • Make your own decks and cards, on any subject • Ask about any card and get an AI explanation on the spot IN THE LIBRARY Spanish: picture starter, top 5,000 words, sentences and verb conjugation Japanese: hiragana and katakana, JLPT N5–N1 vocabulary, Core 2000 and 6000, and Tae Kim grammar, with furigana Chinese: essentials, top 5,000 words, sentences and HSK grammar French: essentials, top words, 501 verbs and sentences German: A1, A2 and B1 vocabulary, top 5,000 words and sentences Korean: Hangul, first 500 words, vocabulary, grammar and sentences ALSO IN DECKS • Study offline • Streaks, retention stats and a Today panel • Undo a rating; search, merge and reorder your decks FREE AND PREMIUM Every library deck is free to add. Free: study every day, with a daily review limit that suits a steady habit. Premium: set your own daily review limit, as high as you want. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscription Terms: https://decksflashcards.com/terms Privacy Policy: https://decksflashcards.com/privacy

Screenshots

Koki Flashcards4 screens
Decks4 screens

Verdict

The call

The clearest difference is ads: Decks at none against Koki Flashcards's shown. Koki Flashcards's advantage is ratings volume (345 vs 3). On price, rating, update cadence and in-app purchases 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. Koki Flashcards sells 14 in-app purchases, starting at $2.99 per month and Decks sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Decks holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Koki Flashcards has 345 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Koki Flashcards ships an update every 9 days, Decks every 5 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Koki Flashcards versus Decks: the parameters behind the verdict, then further details
ParameterKoki FlashcardsDecks
PriceFreeFree
Rating4.8 (345 ratings)5.0 (3 ratings) — better
Positive reviews85.7% of reviews—
Number of ratings345 — better3
Update frequencyEvery 9 daysEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better16.4
Further details — not scored
Size94 MB56 MB
Age rating12+4+
DeveloperKOKI SOFTWAREDingxuan Yao

Customer experience

Koki Flashcards

All ratings337 ratings
Positive96.7%
Neutral3.0%
Negative0.3%
Written reviews35 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

Decks

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

14 purchases

Koki Flashcards

Subscriptions2
  • Subscription monthly3 Days trial$2.991 Month
  • Subscription Anki all package3 Days trial$19.991 Year
One-time12
  • Buy 500 Points$2.99
  • TOEIC 600 Words Special Offer$4.99
  • 1000 Basic English Words$4.99
Show 9 more
  • IELTS Vocabulary Discount$4.99
  • English Daily Routine$4.99
  • Phrases for Basic Communicate$4.99
  • Anki Minnano Nihongo discount$8.99
  • English - IELTS Vocabulary$9.99
  • 600 TOEIC words$9.99
  • Japanese - Minnano Nihongo$12.99
  • Koki Flashcards Lifetime Discount$59.99
  • Koki Flashcards Lifetime$79.99
2 purchases

Decks

Subscriptions2
  • Monthly7 Days trial$4.991 Month
  • Yearly7 Days trial$14.991 Year

Questions

Is Koki Flashcards free?
Koki Flashcards is free to download, with in-app purchases available.
Is Decks free?
Decks is free to download, with in-app purchases available.
Which has better reviews, Koki Flashcards or Decks?
Decks is rated higher. Koki Flashcards averages 4.8 out of 5 from 345 ratings, while Decks averages 5.0 from 3 ratings.
Do Koki Flashcards or Decks have ads?
Koki Flashcards shows ads; Decks does not.
Which is updated more often, Koki Flashcards or Decks?
Koki Flashcards ships an update every 9 days, and Decks every 5 days. Most recently, Koki Flashcards was updated on October 25, 2026 and Decks on October 28, 2026.

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