# Letterly AI — Keigo, Tone Rewrite & AI

> Keigo, Tone Rewrite & AI (iPhone/iPad app by Ying Liu.)

- Source: https://appshunter.io/ios/app/letterly-ai/id6789572052 (this page in markdown: same URL + `.md`)
- Developer: [Ying Liu](https://appshunter.io/developer/6789572054)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 20 MB
- Languages: American English
- Released: 2026-07-13
- Data updated: 2026-07-18
- User reviews in markdown: https://appshunter.io/ios/app/letterly-ai/id6789572052/reviews.md

## What is Letterly AI?

Letterly AI is an AI-powered writing assistant that helps you rewrite text into the perfect tone for any situation.

Whether you're writing business emails, Japanese Keigo, chat messages, social media posts, or multilingual content, Letterly AI makes your writing natural, professional, and easy to understand.

### Key Features

• Rewrite text into polite, business, casual, or friendly tones
• Convert Japanese into natural Keigo
• Improve grammar, clarity, and readability
• Generate and refine business emails
• Translate and rewrite content in multiple languages
• Create natural responses for chats and messaging apps

### Perfect For

• Business professionals
• Students
• Japanese language learners
• Customer support teams
• Sales representatives
• Freelancers
• Anyone who wants to communicate more effectively

### Use Letterly AI For

• Business emails
• LINE messages
• Slack conversations
• Social media posts
• Daily communication
• Multilingual writing

Write naturally.
Communicate confidently.
Express yourself with Letterly AI.


## Version history (last 1 release)

### 1.0 — 2026-07-13

No release notes.

## More apps by Ying Liu

- [Baseball Stats Calculator](https://appshunter.io/ios/app/baseball-stats-calculator/id6789792132)

All apps by Ying Liu: https://appshunter.io/developer/6789572054

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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 2026-07-18.*