# 英語日記 Niki vs Atango カメラで英単語帳作成

The clearest difference is iOS requirement: 英語日記 Niki at 18.5 against Atango カメラで英単語帳作成's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 英語日記 Niki sells 4 in-app purchases, starting at $5.99 per month and Atango カメラで英単語帳作成 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

英語日記 Niki ships an update every 4 days, Atango カメラで英単語帳作成 every 5 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 英語日記 Niki | Atango カメラで英単語帳作成 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | Freemium | — |
| Size | 24 MB | 82 MB |
| Requires iOS | **18.5** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Cliffkentaro Shimada](https://appshunter.io/developer/1873912572) | [NERDIS LLC](https://appshunter.io/developer/1839332076) |

## What reviewers say

### 英語日記 Niki

[App page](https://appshunter.io/ios/app/niki-ai/id6758602521)

This app helps you improve your English writing skills by turning your daily diary entries into personalized learning materials. It uses AI to provide feedback on your writing, offering corrections, explanations, and suggestions for more natural expressions. You can practice speaking, reading, and listening based on your own content.

**Highlights:** AI-powered English writing feedback, Personalized practice exercises, Diary entries as learning material, Simple and intuitive interface, Track vocabulary usage, Monthly learning highlights

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Niki プレミアム (1ヶ月間) | $5.99 | per month |
| Niki プレミアム (1年間) | $59.99 | per year |
| Support Coffee – Regular | $0.99 | one-time |
| Support Coffee – Large | $1.99 | one-time |


### Atango カメラで英単語帳作成

[App page](https://appshunter.io/ios/app/atango/id6759520192)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Vocabulary | $19.99 | one-time |


## Frequently asked questions

### Is 英語日記 Niki free?

英語日記 Niki is free to download, with in-app purchases available.

### Is Atango カメラで英単語帳作成 free?

Atango カメラで英単語帳作成 is free to download, with in-app purchases available.

### Do 英語日記 Niki or Atango カメラで英単語帳作成 have ads?

Neither 英語日記 Niki nor Atango カメラで英単語帳作成 shows ads.

### Which is updated more often, 英語日記 Niki or Atango カメラで英単語帳作成?

英語日記 Niki ships an update every 4 days, and Atango カメラで英単語帳作成 every 5 days. Most recently, 英語日記 Niki was updated on November 3, 2026 and Atango カメラで英単語帳作成 on October 25, 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.*