Comparison

Language Diary vs Learn Languages

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

LangJournal is a Japanese writing practice app that helps you learn by keeping a diary. Write about your day in Japanese, get AI corrections, understand why each correction was made, and ask questions when you need help. By turning your own thoughts and daily life into Japanese practice, you can build a habit that feels personal, practical, and easy to stick with. [Key Features] ■ Write Japanese with AI corrections Write a short diary entry in Japanese and get instant AI feedback. LangJournal checks grammar, wording, vocabulary choices, and natural phrasing so you can improve your writing step by step. ■ Understand every correction Corrections come with explanations, not just rewritten sentences. You can see what changed and why, helping you avoid the same mistakes next time. ■ Ask AI when you’re stuck After your diary is corrected, ask follow-up questions about grammar, nuance, word choice, or more natural expressions. Learn from your own sentences, not generic examples. ■ Review mistakes with quick quizzes Turn your corrected diary entries into quick review quizzes. Practice the points you missed and build stronger habits through small, focused review. ■ Track your weekly progress Review your writing activity, AI chats, the words you used, and learning progress each week. Seeing your progress helps you stay consistent and understand how your Japanese writing is improving. ■ Practice Japanese with AI chat Chat with AI characters by text or voice. Use topics from your diary, or talk about anything you like, to practice Japanese in a more interactive way. ■ Also supports 10+ languages In addition to Japanese, LangJournal supports English, Korean, Chinese, Spanish, German, French, Portuguese, Dutch, Italian, Polish, Swedish, and Tagalog. You can keep practicing in one app as your language goals grow. ■ Zena keeps you motivated Zena supports your daily learning with encouraging comments based on your activity. Even a short diary entry can become a small step toward improving your Japanese. [Recommended For] • People who want to practice writing Japanese every day • Learners who want AI corrections and grammar explanations • People who want to understand why their Japanese sounds unnatural • Learners who want to ask questions about their own sentences • People who want to build a simple and sustainable language learning habit

About

Learn Languages

Practice writing in a new language with AI-powered feedback. This app helps you improve fluency and confidence by correcting your journal entries and showing you how your writing develops over time. It offers a private space to learn and grow your language skills.

Highlights
  • AI-assisted writing corrections
  • Daily journaling in target languages
  • Fluency and confidence building
  • Comparison of original and corrected entries
  • Secure and private data storage
  • Supports multiple languages
Features
Read full description

LangDiary is a thoughtful journaling app that helps you improve your writing skills in a new language through daily practice and AI-assisted feedback. Instead of writing in your native language, you express your thoughts in the language you are learning and increase both your fluency and confidence. After submitting your submission, LangDiary provides AI-driven corrections that highlight errors and offer clear suggestions for improvement. There are no real-time prompts or auto-corrections, so you can write freely and naturally without interruption. Once checked, you can compare your original input with the corrected version to see how your writing develops over time. LangDiary supports German, Dutch, Italian, French, Spanish and English. Your entries are securely stored on your device and privately synced to iCloud - only you can read them. If you choose to receive corrections, your submission is shared anonymously and only for correction. LangDiary creates a safe, private space where you can improve your language skills - one journal entry at a time. Start writing in your target language and take your writing skills to the next level. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kiru.io/app/langdiary/privacy/

Screenshots

Language Diary4 screens
Learn Languages4 screens

Verdict

The call

The clearest difference is update cadence: Language Diary at every 2 days against Learn Languages's every 5 weeks. Language Diary also leads on rating (4.4 vs 4.0) and review sentiment (89% vs 75%). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Language Diary sells 6 in-app purchases, starting at $4.99 per month and Learn Languages sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Language Diary holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Language Diary has 27 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 89% of Language Diary's written reviews are positive against 75% of Learn Languages's.

UpkeepUpdate frequency

Language Diary ships an update every 2 days, Learn Languages every 5 weeks. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

Scorecard5 real differences · 5 level
Language Diary versus Learn Languages: the parameters behind the verdict, then further details
ParameterLanguage DiaryLearn Languages
PriceFreeFree
Rating4.4 (27 ratings) — better4.0 (4 ratings)
Positive reviews88.9% of reviews — better75.0% of reviews
Number of ratings27 — better4
Update frequencyEvery 2 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better18.0
Further details — not scored
Size98 MB15 MB
Age rating4+4+
DeveloperDaiki SatoKirusanth Schenkenberg van Mierop

Customer experience

Language Diary

All ratings27 ratings
Positive85.2%
Neutral7.4%
Negative7.4%
Written reviews27 reviews
Positive88.9%
Neutral3.7%
Negative7.4%

Learn Languages

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

6 purchases

Language Diary

Subscriptions6
  • Premium Monthly Subscription7 Days trial$4.991 Month
  • Pro Monthly Subscription7 Days trial$5.991 Month
  • CEFR+ Monthly Subscription$8.991 Month
Show 3 more
  • Premium Yearly Subscription7 Days trial$49.991 Year
  • Pro Yearly Subscription7 Days trial$59.991 Year
  • CEFR+ Yearly Subscription$89.991 Year
3 purchases

Learn Languages

Subscriptions3
  • Weekly$0.997 Days
  • Pro3 Days trial$1.997 Days
  • Pro7 Days trial$9.991 Year

Questions

Is Language Diary free?
Language Diary is free to download, with in-app purchases available.
Is Learn Languages free?
Learn Languages is free to download, with in-app purchases available.
Which has better reviews, Language Diary or Learn Languages?
Language Diary is rated higher. Language Diary averages 4.4 out of 5 from 27 ratings, while Learn Languages averages 4.0 from 4 ratings.
Do Language Diary or Learn Languages have ads?
Neither Language Diary nor Learn Languages shows ads.
Which is updated more often, Language Diary or Learn Languages?
Language Diary ships an update every 2 days, and Learn Languages every 5 weeks. Most recently, Language Diary was updated on October 2, 2026 and Learn Languages on October 1, 2026.

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