# 英作文が身につくアプリ！ BT Writing vs AnnoReader

The clearest difference is ads: 英作文が身につくアプリ！ BT Writing at none against AnnoReader's shown. AnnoReader's advantage is review sentiment (69% vs 50%) and update cadence (monthly vs every 3 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. 英作文が身につくアプリ！ BT Writing sells 2 in-app purchases, starting at $4.49 per month and AnnoReader sells 4 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

英作文が身につくアプリ！ BT Writing ships an update every 3 months, AnnoReader monthly. The most recent releases landed on October 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 英作文が身につくアプリ！ BT Writing | AnnoReader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | **69.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 26 MB | 95 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Best Teacher, Inc.](https://appshunter.io/developer/1130896870) | [Hironobu Saito](https://appshunter.io/developer/1557456154) |

## What reviewers say

### 英作文が身につくアプリ！ BT Writing

[App page](https://appshunter.io/ios/app/bt-writing/id1438836695)

This app helps you improve your English composition skills through a five-step process, from grammar review to writing your own sentences. It offers original content created by education professionals and feedback from native speakers.

**Highlights:** Grammar confirmation, Fill-in-the-blank exercises, Sentence ordering practice, Original essay writing, Native speaker feedback, Audio playback and dictation, Progressive learning steps

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム会員 | $4.49 | per month |
| チケット | $0.99 | one-time |


### AnnoReader

[App page](https://appshunter.io/ios/app/annoreader/id1557456152)

This app visually breaks down English sentences to improve grammar understanding and reading comprehension. It offers annotation, translation, and text-to-speech features to aid learners in mastering sentence structure and fluency.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 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 |


## Frequently asked questions

### Is 英作文が身につくアプリ！ BT Writing free?

英作文が身につくアプリ！ BT Writing is free to download, with in-app purchases available.

### Is AnnoReader free?

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

### Do 英作文が身につくアプリ！ BT Writing or AnnoReader have ads?

AnnoReader shows ads; 英作文が身につくアプリ！ BT Writing does not.

### Which is updated more often, 英作文が身につくアプリ！ BT Writing or AnnoReader?

英作文が身につくアプリ！ BT Writing ships an update every 3 months, and AnnoReader monthly. Most recently, 英作文が身につくアプリ！ BT Writing was updated on October 29, 2026 and AnnoReader on October 7, 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.*