Best AI Keyboard Apps for Android (2026)

AI keyboards can fix your grammar, translate messages, and rewrite tone right where you type. Here are the best AI keyboard apps for Android in 2026 and who each one suits.

An AI keyboard replaces your normal Android keyboard and adds writing help on top of typing: fixing grammar across a whole sentence, translating a message before you send it, rewriting the tone, or generating a reply. Because a keyboard works in every app, that help follows you into WhatsApp, email, Instagram, and everywhere else you type. Below are the AI keyboard apps worth knowing in 2026, what each does well, and who it fits.

How we compared them

We looked at the features that actually change how you write on a phone: sentence-level grammar correction (not just single-word autocorrect), real-time translation and how many languages are supported, tone rewriting, smart replies, whether AI is built into the keyboard itself, and price. There is no single winner for everyone — the right pick depends on whether you mainly need translation, English polish, or an all-in-one tool.

1. SmartType — best all-in-one AI keyboard

SmartType is built around doing everything from the keyboard. It corrects grammar across full sentences, translates as you type across 369 languages, rewrites tone (professional, friendly, concise), generates smart replies to messages you receive, and includes GPT chat and custom AI prompts. Its standout is language coverage: 369 languages is well beyond the 100-or-so most rivals advertise, which matters if you write across many languages.

• ›Best for: people who want grammar, translation, tone, and replies in one keyboard.
• ›Strengths: 369 languages, sentence-level grammar, works in every app, free to start.
• ›Price: free to start, with free AI words earned via ads or referrals, plus a premium upgrade.

2. Gboard — best free default

Gboard is the keyboard many Android phones ship with, and it is genuinely good: fast, reliable, excellent glide typing, and deep Google integration. It includes a built-in translate feature and is completely free. What it does not do is AI grammar correction across full sentences or the broader set of AI writing tools. If you only need dependable typing plus occasional translation, Gboard is hard to beat on value.

• ›Best for: reliable everyday typing with occasional translation.
• ›Strengths: free, pre-installed, fast, strong glide typing.
• ›Trade-off: limited AI writing tools compared with dedicated AI keyboards.

3. Samsung Keyboard with Galaxy AI — best for Galaxy owners

If you own a recent Samsung Galaxy phone, the built-in Samsung Keyboard includes Galaxy AI writing tools such as grammar fixes, tone rewrites, and translation, at no extra cost. It is convenient because it is already installed and integrated. The catch is that it is limited to supported Galaxy devices, so it is not an option on other Android phones.

• ›Best for: Samsung Galaxy owners who want AI writing built in.
• ›Strengths: pre-installed, free, integrated with the device.
• ›Trade-off: only available on supported Galaxy phones.

4. CleverType — AI keyboard on a subscription

CleverType is a dedicated AI keyboard offering grammar correction, tone changes, translation across 100-plus languages, and AI chat. It is a capable all-rounder in the same category as SmartType. The main consideration is that its full feature set sits behind a paid subscription, so it is worth comparing its price and language coverage against the alternatives before committing.

• ›Best for: users who want a polished AI keyboard and do not mind a subscription.
• ›Strengths: grammar, tone, translation, and AI chat in one keyboard.
• ›Trade-off: key features require a paid subscription.

5. Grammarly — best for deep English writing

Grammarly is the best-known writing assistant and goes deeper on English clarity, style, and tone than a keyboard is designed to. It shines for longer English writing, especially in the browser and on desktop. It does not translate between languages, and its strength is English polish rather than multilingual, in-keyboard messaging. For an Android keyboard that also translates, pair it with, or compare it against, a dedicated keyboard app.

• ›Best for: detailed English clarity and style in longer writing.
• ›Strengths: deep English grammar and style suggestions.
• ›Trade-off: no translation; strongest on desktop and browser rather than in a phone keyboard.

How to choose

Match the tool to your main need. If you write across languages, prioritise translation and language count — this is where SmartType leads with 369 languages. If you only need fast typing, Gboard is a great free default. If you own a Galaxy phone, try Samsung Keyboard first since it is already there. If you write long English documents, Grammarly goes deepest on style. If you want an all-in-one AI keyboard, compare SmartType and CleverType on features and price.

• ›Need translation across many languages: SmartType.
• ›Need a free, reliable default: Gboard.
• ›Own a Samsung Galaxy: Samsung Keyboard with Galaxy AI.
• ›Need deep English editing: Grammarly.

The bottom line

The best AI keyboard for Android depends on what you write and in how many languages. For an all-in-one keyboard that fixes grammar, changes tone, generates replies, and translates as you type across 369 languages — free to start and working in every app — SmartType is the most complete pick in this list. If you want to see the differences in detail, read our comparisons of SmartType versus Gboard and SmartType versus Grammarly, or explore the AI grammar keyboard and AI translation keyboard features.