# 암기왕 vs ITD

The clearest difference is in-app purchases: 암기왕 at none against ITD's 8. 암기왕 also leads on update cadence (fortnightly vs monthly) and device support (3 vs 1). ITD's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. ITD sells 8 in-app purchases, starting at $4.99 per month. 암기왕 asks for nothing beyond the download.

암기왕 ships an update fortnightly, ITD monthly. The most recent releases landed on June 4, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 암기왕 | ITD |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Ad-supported | — |
| Size | 73 MB | 141 MB |
| Requires iOS | **13.0** | 18.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AD Lift Co., Ltd](https://appshunter.io/developer/1697835703) | [BODA EDU. CO.,LTD](https://appshunter.io/developer/1754173267) |

## What reviewers say

### 암기왕

[App page](https://appshunter.io/ios/app/and/id412399699)

This app helps you memorize vocabulary and manage study routines efficiently. It offers flashcards, spaced repetition, and tools like a Pomodoro timer and study calendar to build consistent learning habits. Track progress and analyze study patterns with detailed reports.

**Highlights:** Flashcard-based vocabulary memorization, Spaced repetition algorithm, Customizable word lists, Pomodoro timer for focus, Study routine scheduling, Learning calendar and reports

**Features:** macOS Compatibility

**In-app purchases:** none


### ITD

[App page](https://appshunter.io/ios/app/itd-pomodoro-focus-timer/id6756837604)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 한달 | $4.99 | per month |
| 일년 | $29.99 | per year |
| 별조각 20개 | $0.49 | one-time |
| 별조각 70개 | $1.99 | one-time |
| 별조각 150개 | $4.99 | one-time |
| 별조각 350개 | $9.99 | one-time |
| 별조각 800개 | $17.99 | one-time |
| 평생 집중 | $49.99 | one-time |


## Frequently asked questions

### Is 암기왕 free?

암기왕 is free to download, with no in-app purchases.

### Is ITD free?

ITD is free to download, with in-app purchases available.

### Do 암기왕 or ITD have ads?

암기왕 shows ads; ITD does not.

### Which is updated more often, 암기왕 or ITD?

암기왕 ships an update fortnightly, and ITD monthly. Most recently, 암기왕 was updated on June 4, 2026 and ITD on September 20, 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.*