# Studiary: AI English Diary — Write, chat, improve daily

> Write, chat, improve daily (iPhone/iPad app by Tsubasa Tanabe.)

- Source: https://appshunter.io/ios/app/studiary-ai-english-diary/id6746693025 (this page in markdown: same URL + `.md`)
- Developer: [Tsubasa Tanabe](https://appshunter.io/developer/1817939986)
- Category: Education, Lifestyle
- Price: Free
- Age rating: 12+
- Requires: iOS 15.0 · 57 MB
- Languages: American English
- Released: 2026-02-10
- Data updated: 2026-08-15
- User reviews in markdown: https://appshunter.io/ios/app/studiary-ai-english-diary/id6746693025/reviews.md

## What is Studiary?

An English diary trains more than your writing.
Vocabulary, grammar, structure and expression — all of it, in one habit.

Studiary is an English diary app built on three steps: write, get corrected, review. Write about your day in English, and your English gets a little better every day.

■ Who it is for
・Anyone building a habit of writing in English
・Learners strengthening their composition and writing
・Anyone preparing for the writing section of IELTS, TOEFL or Eiken
・Self-studiers who want feedback without a tutor

■ Three simple steps
1. Write — about your day, with a prompt or by voice
2. Get corrected — the AI reviews the whole entry and explains every change
3. Review — spaced repetition brings each phrase back before you forget it

■ Features

◎ AI corrections, right after you write
Not just grammar — vocabulary, phrasing and naturalness too. Every change is shown with a strikethrough; tap it to read why it was changed.

◎ See your level on the CEFR scale
Every entry is graded on the international CEFR scale (A1-C2): an overall level plus separate levels for range, coherence and accuracy, so you can see where your weak spot is.

◎ Today's takeaways, and a polished version
Each correction surfaces two kinds of phrases worth keeping: level-up phrases that lift your own wording into a more natural form, and recommended collocations you have not used yet. Either becomes a review card in one tap. You can also read your whole entry rewritten a level higher — same content, better English.

◎ Nothing to say? Nicky asks. Stuck? Ask Nicky.
On days when nothing comes to mind, your AI coach Nicky asks you a question — answer it and the entry has already started. Can't find a word mid-sentence, or unsure the phrasing works? Ask while you write, and you get hints, alternatives, and questions about what to write next.

◎ But Nicky will not write it for you
Studiary is not an app that writes your diary. It will not draft your entry or translate long passages, even if you ask. It helps you past the point where you are stuck, and no further. Finishing it in your own words is what makes it stick.

◎ Remember what you learned
Phrases from your corrections are scheduled by FSRS, a spaced repetition algorithm, and come back at the right moment — phrases Japanese to English, words English to Japanese. A mastery percentage shows how well each has settled in.

◎ Voice, dictionary and audio
Write by speaking with English voice input. Select any English text to look it up in the built-in dictionary — no connection needed, and inflected forms resolve to their base form. Bookmark a word to turn it into a review card. Tap the speaker to hear any sentence read aloud.

◎ A calendar, a streak, and your past self
Days you write get marked, and your streak becomes a badge. On This Day digs up what you wrote on this date a year ago — the clearest proof that you improved. Full-text search finds any phrase you have used, and you can share a card with your streak and total word count.

◎ Nicky remembers you
Beyond the goals you set at the start, Nicky picks up your strengths, weak spots and preferences from your entries and feeds them into your corrections and questions. It also reacts to what you actually wrote, not only to your English — a correction that starts with "sounds like a rough day" is one you come back to tomorrow.

■ Built to be kept up
・Light and dark themes; interface in English or Japanese
・Your entries are stored on your device

■ About correction limits
One AI correction per day is included. To have another entry corrected the same day, watch a short video ad. Writing, re-reading, reviewing and looking up words are never limited.

■ Support
Send feedback and bug reports from the app's settings screen.

Start your English diary today.
A few minutes a day is what changes your English a year from now.


## Version history (last 5 releases)

### 1.0.0 — 2026-08-15

Version 1.0.0 — We're now called Studiary

From an IELTS prep app to an English journaling app for every learner.
Both the look and the substance have been rebuilt.

【New】
• Scores now shown in CEFR (A1–C2)
  See your level and progress on an international scale. A conversion table and a guide to the criteria are built into the app.

• A brand-new home screen
  A sky that shifts with the time of day, and Nicky, your AI tutor, waiting for you. "Today's question" now offers three to choose from.

• Nicky remembers you
  Tell Nicky your name, what you want English for, and a bit about yourself — and your corrections, daily questions, and answers become yours alone. You can review and edit what Nicky remembers at any time.

• Ask for help while you write
  Stuck for words? Ask Nicky. It won't write for you — it gives you just enough to keep going on your own.

• Rebuilt voice input
  Long, spoken-style entries are far less likely to cut off mid-sentence.

• A new feed-style entry list
  Search now highlights every match, and you can revisit what you wrote on this day a year ago.

• Review, rebuilt
  Choose how many cards to review in one session. Answers are read aloud automatically, and each word now shows how well you've mastered it.

• Built-in offline dictionary
  Look up any word instantly, with no connection needed.

• New completion celebration and share card
  A redesigned card that puts your total word count front and center — made for sharing.

【Improvements】
• Removed the white flash on launch
• Unified buttons, settings, and the navigation bar across every screen
• Entry detail now leads with the words you wrote
• Appearance (light/dark) now offers four options

【Fixes】
• Fixed the streak celebration appearing every time
• Fixed an off-by-one in the "last 7 days" window
• Fixed missing definitions in part of the dictionary data
• Many other layout and wording fixes

### 0.9.2 — 2026-07-03

- Fixed an issue where dictated text could run into the adjacent words
- Fixed an issue where text on the diary screen couldn't be copied
- Made the AI conversation screen cleaner and easier to read
- Improved overall stability

### 0.9.1 — 2026-05-16

Your AI tutor finally has a name — meet Nicky! Nicky will be your guide throughout your IELTS journey
Fixed a bug where the terms of service and update notifications weren't appearing correctly after first launch
More stable AI responses

### 0.9.0 — 2026-03-29

■ New Features
▶ Inline Dictionary Lookup
Long-press any word or phrase on the correction or conversation screen to instantly open a floating dictionary card — no need to leave the app.

▶ My Word Book
Save words and phrases from your correction results with one tap. Review them anytime in the new "My Words" tab, complete with mastery badges and swipe-to-delete.

■ Design Overhaul
We updated design of App

■ Bug Fixes
We fixed several minor bugs

### 0.8.18 — 2026-03-11

1. Voice Input — Speak into the mic to enter English text without typing. Works in both diary writing and AI chat

2. Listen to Corrections — Tap any corrected sentence or expression on the correction screen to hear it read aloud

3. AI That Remembers You — The AI now remembers your goals, weak points, and preferences across conversations to give you more personal support over time

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## More apps by Tsubasa Tanabe

- [Our Time - Time Together](https://appshunter.io/ios/app/our-time-time-together/id6767506853)

All apps by Tsubasa Tanabe: https://appshunter.io/developer/1817939986

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*
