# AnnoReader — Fun mastering English grammar

> Visual English grammar learning tool for reading comprehension and fluency. (iPhone/iPad app by Hironobu Saito.)

- Source: https://appshunter.io/ios/app/annoreader/id1557456152 (this page in markdown: same URL + `.md`)
- Developer: [Hironobu Saito](https://appshunter.io/developer/1557456154)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.6 · 95 MB
- Languages: American English, Japanese
- Released: 2021-03-28
- Data updated: 2026-06-09
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/annoreader/id1557456152/reviews.md

## What is AnnoReader?

AnnoReader: English Grammar Learning Tool

AnnoReader is an "English Grammar Learning Tool" designed for English language learners. It helps improve reading comprehension by making sentence structure and modification relationships instantly visible.

Purpose

This app was developed to address common challenges faced by English learners, such as:
- Wanting to learn English grammar more effectively
- Difficulty identifying phrases and clauses
- Trouble distinguishing the five sentence patterns (SVOC)
- Preparing for long passages in tests like TOEIC
- Desire to read more fluently

With translation and text-to-speech features, AnnoReader can also be used for listening and speaking practice beyond grammar study.

Key Features

English Annotation (Syntax Analysis)
- Visualizes clauses, phrases, and modification relationships
- Displays parts of speech for words
- Provides dictionary lookup for words
- Shows meanings of phrasal verbs
- Highlights the five sentence patterns (SVOC)
- Underlines compound words

Translation
- Displays translations by phrase and clause units
- Supports various languages, including Japanese

Text-to-Speech
- High-quality native speaker voice for reading English text
- Four accent options: American, British, Australian, and Indian
- Allows simultaneous grammar and listening practice
- Repeat function and timed rewind feature for enhanced learning

AI Grammar Check
- AI-powered checking of inputted English text
- Easily identifies grammatical errors and typos

Camera Function (OCR)
- Captures English text from books or documents using the built-in camera
- Performs annotation on the captured text

Multiple Input Methods
- Direct text input
- Paste from clipboard
- Import text via iOS share function

Customization Settings
- Adjustable font and annotation settings to suit user preferences

For more information:
- Terms of Service: https://annoreader.com/ja/terms_of_service
- Privacy Policy: https://annoreader.com/ja/privacy

## Key features

- Visual syntax analysis of sentences
- Phrase and clause translation
- Text-to-speech with accent options
- AI grammar checking
- OCR for text capture
- Dictionary lookup and phrasal verb meanings

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Basic(monthly) | $1.49 | per month |
| Basic Plus(Monthly) | $3.49 | per month |
| Pro(Monthly) | $4.99 | per month |
| Pro Plus (Monthly) | $11.99 | per month |


## Recent user reviews (10 of 26)

All indexed reviews: https://appshunter.io/ios/app/annoreader/id1557456152/reviews.md

### 3/5 — カメラがおしい。

*2025-08-05, version 3.8.1*

文頭のアルファベットの読み取り間違えが多くて残念です。
改善して欲しい。

### 1/5 — ダメですね

*2025-02-22, version 3.8.0*

2種類以上の意味がある品詞は上手く解析してくれません。
こんなアプリはアンインストールして自力で頑張りましょう！

### 3/5 — 確認

*2024-03-08, version 3.7.0*

基本的なSVOOなどの文章の解析をしていますが、SVは表示されるのにOがほぼ表示されません。なぜでしょうか？OやCが知りたくてダウンロードして課金しているのに残念です。

### 3/5 — 共有ができません

*2024-01-31, version 3.6.4*

iPadで利用しています。共有ができません。（共有ボタンを押しても反応しない）iPhoneはできます。早急に改善してください。

### 4/5 — いつもお世話になってます

*2024-01-27, version 3.6.4*

英語の構造をとる際に使わせてもらってます！ただ最上位プランだとかなり毎月お金がかかってしまうのでぜひ学割プラン等の検討もお願いします。。

### 5/5 — すごいと思う

*2023-11-14, version 3.6.4*

I talk a lot.
a lot が名詞表示されます。
名詞ではなく、
talk(V)[a lot(M)]の副詞(句)では？

### 5/5 — すごい！

*2023-11-08, version 3.6.2*

英語長文等で困っている時にとても役立ちました！クオリティも高く大変満足しています！

### 5/5 — 最高だけどまだ完璧じゃない

*2023-11-06, version 3.6.2*

センテンスの日本語訳はめっちゃいい！
でも｢スラッシュ｣の所で、スラッシュが変なところに入ってしまっていたり、フレーズにした時にセンテンスの時は大丈夫だった日本語が崩壊したりするのが残念でした！

### 4/5 — 素敵なアプリ！

*2023-11-02, version 3.6.2*

ダウンロードさせてもらいました(^^)

課金もしたいコンセプトなのですが、
例えば、

She made a mistake in her report secret.

という第5文型の文があったとき、
secretを補語（C）と認識してくれません。

この辺りの精度を高くしていただければ即課金します⭐︎

### 5/5 — Nice

*2023-11-02, version 3.6.2*

Nice

## Frequently asked questions about AnnoReader

### What does AnnoReader do?

AnnoReader is an English grammar learning tool that visually breaks down sentences to help users understand structure and modification relationships. It aims to improve reading comprehension and fluency for English language learners.

### What are the key features of AnnoReader?

Key features include visual syntax analysis showing clauses, phrases, and parts of speech, phrase-by-phrase translation, text-to-speech with multiple accents, AI grammar checking, and an OCR camera function to analyze text from documents.

### How much does AnnoReader cost?

The app is free to download and use, but it offers in-app purchases for additional features or content. Specific pricing for these purchases can be found within the app.

### What languages does the translation feature support?

The translation feature supports various languages, including Japanese. Translations are provided for phrase and clause units within sentences.

### Who is AnnoReader designed for?

AnnoReader is designed for English language learners who want to improve their grammar more effectively, understand sentence structure, and prepare for tests like TOEIC. It also aids those who wish to read more fluently.

## Version history (last 5 releases)

### 3.8.5 — 2026-02-03

Small bug fix

### 3.8.4 — 2025-11-30

Fixed a bug where the app crashed when using the camera on some devices

### 3.8.2 — 2025-08-30

Small bug fixes

### 3.8.1 — 2025-06-07

Added a toggle for auto-correction on the software keyboard
Fixed sharing functionality issues from other apps

### 3.8.0 — 2024-11-16

Added history functionality
Improved the annotation engine
Fixed an issue where the camera screen was distorted in dark mode
Made minor UI refinements

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## More apps by Hironobu Saito

- [かんたんスラッシュリーディング](https://appshunter.io/ios/app/id1591726988)
- [CaptionTube](https://appshunter.io/ios/app/captiontube/id6754217528)

All apps by Hironobu Saito: https://appshunter.io/developer/1557456154

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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 2026-06-09.*