# Kiku vs Callback

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.

Both are free to download. Kiku sells 2 in-app purchases, starting at $9.99 per month. Callback asks for nothing beyond the download.

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

## The numbers

| Metric | Kiku | Callback |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (129 ratings)](https://appshunter.io/ios/app/kiku-learn-japanese-fast/id6760329052/reviews)** | — |
| Number of ratings | **129** | — |
| Positive reviews | 73.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Subscription | — |
| Size | 98 MB | 2 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [HAKEEM O DIMOZANTOS](https://appshunter.io/developer/1850220728) | [Vladimir Babin](https://appshunter.io/developer/1557125814) |

## What reviewers say

### Kiku

[App page](https://appshunter.io/ios/app/kiku-learn-japanese-fast/id6760329052)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kiku Pro — Monthly | $9.99 | per month |
| Kiku Pro — Yearly | $49.99 | per year |


### Callback

[App page](https://appshunter.io/ios/app/callback-interview-prep/id6796242315)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*