# i単語帳 vs 英単語・熟語

The clearest difference is price: 英単語・熟語 at Free against i単語帳's $1.99. 英単語・熟語 also leads on device support (3 vs 1) and iOS requirement (17.0 vs 26.0). i単語帳's advantage is in-app purchases (none vs 5) and ads (none vs shown). On update cadence there is nothing between them.

英単語・熟語 is free to download; i単語帳 costs $1.99 up front. 英単語・熟語 sells 5 one-off in-app purchases. i単語帳 asks for nothing beyond the download.

i単語帳 ships an update every 2 months, 英単語・熟語 every 4 months. The most recent releases landed on September 7, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | i単語帳 | 英単語・熟語 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/id995127077/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **55.0% of reviews** | 36.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | — |
| Size | 8 MB | 112 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [aill, k.k. (JP)](https://appshunter.io/developer/293879399) | [Li Wang](https://appshunter.io/developer/788390771) |

## What reviewers say

### i単語帳

[App page](https://appshunter.io/ios/app/i/id515863677)

This app combines the tactile feel of physical flashcards with digital efficiency. It uses a scientific approach to optimize memorization by re-presenting cards at scientifically determined intervals. Easily manage and import your vocabulary lists for effective learning.

**Highlights:** Realistic card-flipping simulation, Automatic spaced repetition learning, Pre-loaded 600 common English words, CSV file import for bulk vocabulary entry, Cross-vocabulary search, Customizable card and text colors

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

**In-app purchases:** none


### 英単語・熟語

[App page](https://appshunter.io/ios/app/id995127077)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $7.99 | one-time |
| 「初級」の単語と例文の発音 | $8.99 | one-time |
| 「上級」の単語と例文の発音 | $8.99 | one-time |
| 「中級」の単語と例文の発音 | $9.99 | one-time |
| 「全部」の単語と例文の発音 | $14.99 | one-time |


## Frequently asked questions

### Is i単語帳 free?

i単語帳 costs $1.99, with no in-app purchases.

### Is 英単語・熟語 free?

英単語・熟語 is free to download, with in-app purchases available.

### Do i単語帳 or 英単語・熟語 have ads?

英単語・熟語 shows ads; i単語帳 does not.

### Which is updated more often, i単語帳 or 英単語・熟語?

i単語帳 ships an update every 2 months, and 英単語・熟語 every 4 months. Most recently, i単語帳 was updated on September 7, 2026 and 英単語・熟語 on August 31, 2026.

---

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