# Language Diary vs 超音波検査士対策 500問

The clearest difference is price: Language Diary at Free against 超音波検査士対策 500問's $3.99. Language Diary also leads on update cadence (every 3 days vs fortnightly). 超音波検査士対策 500問's advantage is in-app purchases (none vs 6). On ads, device support and iOS requirement there is nothing between them.

Language Diary is free to download; 超音波検査士対策 500問 costs $3.99 up front. Language Diary sells 6 in-app purchases, starting at $4.99 per month. 超音波検査士対策 500問 asks for nothing beyond the download.

Language Diary ships an update every 3 days, 超音波検査士対策 500問 fortnightly. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Language Diary | 超音波検査士対策 500問 |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.4 (27 ratings)](https://appshunter.io/ios/app/language-diary-langjournal/id6448331480/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 100 MB | 34 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daiki Sato](https://appshunter.io/developer/1329526543) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### Language Diary

[App page](https://appshunter.io/ios/app/language-diary-langjournal/id6448331480)

This app helps you improve language skills by writing a diary with AI-powered corrections for grammar, vocabulary, and syntax. It also offers peer collaboration, AI chat practice, and CEFR level evaluations to enhance your learning journey.

**Highlights:** AI-powered diary corrections, Chat and conversation with AI, Peer collaboration in teams, CEFR level evaluation, Voice recording for pronunciation, Attach images/videos to entries, Passcode lock for privacy

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Subscription | $4.99 | per month |
| Pro Monthly Subscription | $5.99 | per month |
| CEFR+ Monthly Subscription | $8.99 | per month |
| Premium Yearly Subscription | $49.99 | per year |
| Pro Yearly Subscription | $59.99 | per year |
| CEFR+ Yearly Subscription | $89.99 | per year |


### 超音波検査士対策 500問

[App page](https://appshunter.io/ios/app/500/id6790070520)

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

**In-app purchases:** none


## Frequently asked questions

### Is Language Diary free?

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

### Is 超音波検査士対策 500問 free?

超音波検査士対策 500問 costs $3.99, with no in-app purchases.

### Do Language Diary or 超音波検査士対策 500問 have ads?

Neither Language Diary nor 超音波検査士対策 500問 shows ads.

### Which is updated more often, Language Diary or 超音波検査士対策 500問?

Language Diary ships an update every 3 days, and 超音波検査士対策 500問 fortnightly. Most recently, Language Diary was updated on October 15, 2026 and 超音波検査士対策 500問 on October 10, 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.*