Comparison

Kiku vs Callback

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

Head to head
About

Kiku

Learn Japanese by scrolling through fun video clips, similar to social media feeds. Absorb real conversations, translate words instantly, and build vocabulary with flashcards. Ideal for students, travelers, and fans of Japanese culture.

Highlights
  • Learn through scrolling video clips
  • Tap to translate words and phrases
  • Build vocabulary with flashcards
  • Immersive learning from native speakers
  • Bite-sized, flexible learning sessions
  • Search and listen to words in context
Features
Read full description

Hear Japanese the way it’s actually spoken. Kiku turns your scrolling habit into real listening practice. Swipe through short clips of native speakers chatting, joking, and reacting. That’s the Japanese you’ll hear on the street, in anime, and on Japanese TV, not the stiff phrases from a textbook. Every clip comes with an interactive transcript. Don’t know a word? Tap it. Like a phrase? Save it. Your saved words become flashcards tied to the exact moment you heard them, so you remember the voice and the context as well as the meaning. HOW KIKU HELPS YOU LEARN Real native audio: Train your ear on natural speed, everyday slang, casual speech, and authentic pronunciation. Tap any word: Get an instant translation with an AI explanation of meaning, nuance, and grammar, right inside the transcript. Flashcards from what you watched: Review vocabulary pulled from your own clips, with the original audio and context attached. Hear any word in action: Search a word or phrase and get hundreds of real clips where native speakers use it. Short and easy to fit in: Each clip takes seconds, so you can practice on the train, in a queue, or between meetings. MADE FOR Anime and J-drama fans who want to rely less on subtitles Travellers getting ready to order food, ask directions, and chat with locals in Japan Students who want to add real listening practice to their classes or JLPT study Beginners and intermediate learners who’ve stalled with gamified apps and want real-world exposure Busy people who want a few minutes of Japanese a day without heavy study sessions WHY IMMERSION WORKS Fluent speakers didn’t learn from drills. They learned by hearing the language over and over in real situations. Kiku gives you that same exposure in short clips, so listening comprehension, vocabulary, and natural phrasing build up a little more with every scroll. Download Kiku and start understanding real Japanese today. *SUBSCRIPTION INFORMATION* Kiku is available with an annual plan that includes a free trial, or a monthly plan without a trial. If you start a free trial, you won’t be charged until the trial is over. After that, payment is charged to your Apple ID account, and your subscription renews automatically at the same price unless you turn it off at least 24 hours before the current period ends. You can manage or cancel your subscription at any time in your Apple ID account settings. Prices are shown in the app and may vary by country or region. *TERMS OF SERVICE* https://kikulang.com/terms https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Callback

Features
Read full description

Callback prepares you for iOS developer interviews — on the train, in a waiting room, or the night before the real thing. Everything works offline. There is no account to create, nothing to sign in to, and no network connection required — only anonymous screen-view analytics on our own server. WHAT YOU GET • Eleven topics — Swift, Memory Management, Concurrency, SwiftUI, UIKit, Networking, Persistence & Data, Behavioral, Testing, Architecture & Patterns, and Mobile System Design — each with focused lessons and a bank of interview-grade questions. • Short, readable lessons with syntax-highlighted Swift, each ending in a quick check so you find out immediately whether it stuck. • Timed mock interviews with a pause-safe timer that survives backgrounding, so a phone call doesn't cost you the session. • A review queue that automatically resurfaces every question you got wrong or flagged — the fastest way to turn weak spots into strong ones. • Behavioral questions come with a model-answer rubric you score yourself against, because that's how they're actually assessed. • A readiness score that weights recent answers more heavily than old ones and accounts for how much of each topic you've actually covered. • Full VoiceOver support, Dynamic Type throughout, and Reduce Motion respected. PRIVATE BY DESIGN Your progress lives on your device and nowhere else. There is no advertising, no crash reporting, and no third-party SDK. The only thing the app sends is anonymous screen-view analytics (which screen you opened, app/OS version, device model — no identifiers) to our own self-hosted Umami server. You can export everything you've done as a JSON file, or erase it in one tap. Get the callback.

Screenshots

Kiku4 screens
Callback4 screens

Verdict

The call

The clearest difference is in-app purchases: Callback at none against Kiku's 2. Callback also leads on ads (none vs shown). Kiku's advantage is update cadence (every 9 days vs every 2 months) and device support (3 vs 1). On price 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. Kiku sells 2 in-app purchases, starting at $9.99 per month. Callback asks for nothing beyond the download.

UpkeepUpdate frequency

Kiku ships an update every 9 days, Callback every 2 months. Both last shipped on October 31, 2026.

Scorecard5 real differences · 5 level
Kiku versus Callback: the parameters behind the verdict, then further details
ParameterKikuCallback
PriceFreeFree
Rating4.5 (129 ratings) — better—
Positive reviews73.0% of reviews—
Number of ratings129 — better—
Update frequencyEvery 9 days — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size98 MB2 MB
Age rating9+4+
DeveloperHAKEEM O DIMOZANTOSVladimir Babin

In-app purchases

2 purchases

Kiku

Subscriptions2
  • Kiku Pro — Monthly$9.991 Month
  • Kiku Pro — Yearly7 Days trial$49.991 Year
None

Callback

No in-app purchases

Questions

Is Kiku free?
Kiku is free to download, with in-app purchases available.
Is Callback free?
Callback is free to download, with no in-app purchases.
Do Kiku or Callback have ads?
Kiku shows ads; Callback does not.
Which is updated more often, Kiku or Callback?
Kiku ships an update every 9 days, and Callback every 2 months. Most recently, Kiku was updated on October 31, 2026 and Callback on October 31, 2026.

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