# Keylio: AI Keyboard Translator — Grammar Checker & Smart Reply

> AI-powered keyboard for translation, grammar, and writing assistance. (iPhone/iPad app by Mert Ozge.)

- Source: https://appshunter.io/ios/app/keylio-ai-keyboard-translator/id6759282831 (this page in markdown: same URL + `.md`)
- Developer: [Mert Ozge](https://appshunter.io/developer/534518974)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 12+
- Requires: iOS 17.0 · 22 MB
- Languages: American English
- Released: 2026-02-23
- Data updated: 2026-10-23
- Monetization: freemium

## What is Keylio?

Stop switching apps to translate a message. With Keylio, you can translate, improve your writing and prepare replies directly from your iPhone keyboard.

For everyday messages, work emails and conversations in another language, keep your writing tools where you need them.

TRANSLATE FROM YOUR KEYBOARD
Choose a target language, translate your draft and insert the result into the text field. Keylio can detect the source language automatically, so you can keep the conversation going without opening a separate translator.

CHECK GRAMMAR AND SPELLING
Catch mistakes before you send. Use the grammar checker to review your text and correct spelling, punctuation and grammar. Preview the result, then apply it when you're happy with it.

REWRITE, SHORTEN OR EXPAND
Find a clearer way to say it. Rewrite a draft, shorten a long message, expand a brief note or simplify your wording. Your AI writing assistant is right on the keyboard.

CHOOSE THE RIGHT TONE
Make a message friendly, professional, funny or flirty. Explore different phrasings for the situation, or create a custom tone that fits your writing style.

PREPARE A REPLY
Paste the message you received and choose what you want to say: accept, politely decline, ask for details or keep talking. Select a tone and review the suggested reply. You decide what to send.

GET STARTED
1. Add Keylio in your iPhone keyboard settings and enable Allow Full Access.
2. Switch to Keylio with the globe key.
3. Choose Translate, Tone, Writing or Reply in apps that support third-party keyboards.

AI features require an internet connection and Full Access to send the text selected for processing to AI services. Free use has limits. Additional usage is available with Keylio PRO.

Privacy Policy: https://docs.google.com/document/d/18UYzIiBexFZ60aMi4dpYrxnJFHEmh_zr-jmeTE1oKzc
Terms of Use: https://docs.google.com/document/d/11aSTKKTZixmlAr7ZXcIbPiqSMMpLsNDkRu-OvQU50tk

## Key features

- Translate messages from keyboard
- Grammar and spelling checker
- Rewrite, shorten, or expand text
- Adjust message tone
- Prepare replies
- Automatic language detection

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 3-Days Trial | $4.99 | per 7 days |
| Annual Subscription | $39.99 | per year |


## Is Keylio safe?

Not enough ratings yet to assess Keylio.

## Is Keylio legit?

Keylio: AI Keyboard Translator appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Keylio is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Keylio

### What is Keylio?

Keylio is an AI-powered keyboard application for iPhone that allows users to translate messages, check grammar, rewrite text, adjust tone, and prepare replies directly from their keyboard without needing to switch between apps.

### How does Keylio's translation feature work?

You can select a target language and translate your draft directly within the text field. Keylio can automatically detect the source language, enabling seamless conversations.

### Can Keylio help improve my writing?

Yes, Keylio offers a grammar and spelling checker to catch mistakes. It can also rewrite, shorten, or expand your text to find clearer ways of expressing your thoughts.

### Does Keylio have ads?

No, Keylio does not contain advertisements. Its features are available through a free tier with limits and an optional subscription for expanded usage.

### What are the Keylio subscription plans?

Keylio offers a 3-day free trial for $4.99/week and an annual subscription for $39.99/year. These plans provide access to additional usage beyond the free tier limits.

### Is Keylio available on Android devices?

Based on the provided data, Keylio is currently supported on iPhone devices only.

### How often is Keylio updated?

The latest version of Keylio is 1.1, which was last updated on October 12, 2026. This indicates a recent update, suggesting ongoing development and support.

### What is the age rating for Keylio?

Keylio has an age rating of 12+, making it suitable for users aged 12 and above.

## Version history (last 2 releases)

### 1.1 — 2026-10-12

New in version 1.1:
• A redesigned introduction with interactive examples and keyboard setup guidance.
• Improved tone, rewriting and reply suggestions.
• Clearer loading states and action buttons.
• Improvements when switching languages and revisiting tone options.

### 1.0 — 2026-02-24

No release notes.

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## More apps by Mert Ozge

- [License Plate Game Challenge](https://appshunter.io/ios/app/license-plate-game-challenge/id6751546530)
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- [Spol: Retro Video Camera](https://appshunter.io/ios/app/spol-retro-video-camera/id6812403917)

All apps by Mert Ozge: https://appshunter.io/developer/534518974

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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 2026-10-23.*