Language Diary vs 超音波検査士対策 500問
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Language Diary
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.
- 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
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LangJournal helps you learn a language by keeping a diary, with AI corrections, explanations, follow-up questions, and review exercises. Write about your day in the language you're learning. AI checks grammar and unnatural expressions and helps you make your writing clearer and more natural. Each correction comes with an explanation, so you can understand why a change is needed and develop your writing skills. When you're unsure about an expression, you can ask AI directly. Ask questions about your diary, such as "Does this sound natural?", "What's the difference between 'the' and 'a'?", or "How can I say this more casually?" Keeping a diary is a way to practice writing and build a daily habit of using the language. Start with one short sentence and gradually build your grammar, vocabulary, and range of expressions. [Key Features] ■ Write a Diary With AI Corrections AI checks your diary as soon as you submit it. Get help with grammar, vocabulary, and unnatural expressions to make your writing more natural. ■ Understand Why a Correction Is Needed See why each corrected part needs to change. Review your writing with explanations, rather than just looking at the corrected answer. ■ Ask AI About Your Diary Ask AI any questions you still have after a correction. Explore nuances, grammar, alternative wording, and more natural ways to express yourself. ■ Review Your Mistakes Review by writing sentences in exercises based on corrections from your diary. Practice reducing repeated mistakes and reinforcing what you've learned. ■ Look Back With Weekly Reports Review your diary entries, AI chats, words used, and words used for the first time each week. See how many days you've practiced and how much you've done to help build a learning habit. ■ Check Your English Level With CEFR Analysis Analyze your diary against CEFR levels to get an indication of your English proficiency. See an overall assessment and breakdowns covering vocabulary, grammar, and verb forms. This feature is currently available for English learners. ■ Learn by Chatting With AI Characters Talk with AI characters such as Zena, Zeb, Leon, and Mari by text or voice. Build on topics from your diary or discuss a topic you enjoy to get more practice using the language. ■ Learn in 13 Languages Study English, Korean, Japanese, Chinese, Spanish, German, French, Italian, Portuguese, Dutch, Polish, Swedish, or Tagalog. ■ Share Diaries With a Team Join a team to share diary entries and exchange comments with others learning the same language. Learning together can help you keep going when it's hard to stay consistent on your own. This feature is currently available for learners of English, German, and Korean. ■ Get Daily Support From Zena Zena supports you with comments based on your learning activity. Start with a short diary entry and find encouragement to keep learning each day. [Recommended For] ■ Learners who want to develop natural expressions by keeping a diary ■ People who want to practice writing with AI corrections ■ Learners who want to understand their mistakes and avoid repeating them ■ People who want to learn at their own pace while asking AI questions ■ Learners who want more opportunities to use the language every day ■ People who find it hard to stay consistent alone and want to enjoy learning languages
超音波検査士対策 500問
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超音波検査士の対策クイズアプリです。 本番を想定したオリジナル問題500問を収録。章別学習・ランダム演習・模擬試験で効率的に合格を目指せます。 【収録内容】 ・全500問、四肢択一形式 ・全問に詳しい解説付き ・章別の学習進捗トラッキング ・間違えた問題の自動復習リスト+ブックマーク ・模擬試験モードで実戦演習 【アプリの特長】 ・完全オフライン動作(通信不要) ・アカウント登録・ログイン不要 ・広告なし、追加課金なし(買い切り型) ・データ収集は一切行いません ※本アプリは非公式の学習支援アプリであり、試験実施団体とは一切関係ありません。収録問題は公開情報に基づき独自に作成したオリジナル問題です。 通勤・通学などのスキマ時間の学習に。超音波検査士の合格対策にお役立てください。
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Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Language Diary | 超音波検査士対策 500問 |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.4 (27 ratings) — better | — |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 27 — better | — |
| Update frequency | Every 3 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 100 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Daiki Sato | satoshi yoshida |
In-app purchases
Language Diary
- Premium Monthly Subscription7 Days trial$4.991 Month
- Pro Monthly Subscription7 Days trial$5.991 Month
- CEFR+ Monthly Subscription$8.991 Month
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- Premium Yearly Subscription7 Days trial$49.991 Year
- Pro Yearly Subscription7 Days trial$59.991 Year
- CEFR+ Yearly Subscription$89.991 Year
超音波検査士対策 500問
No in-app purchases









