2026 年 Android 用 AI キーボード アプリ ベスト 10 (プライバシー第一)

Five things decide whether an AI keyboard earns a place on your phone. We weighted them in that order.

• Where your voice and text are processed. On-device means the AI runs on your phone and your data stays there. Cloud means it travels to a server. This is the single biggest difference between the keyboards below, and the one most reviews bury at the bottom.
• Whether it works offline. A keyboard that needs a signal to transcribe your voice is a keyboard that quits on a plane, on the underground, and in a dead zone. Offline voice typing is no longer a downgrade in 2026.
• How good it is as a plain keyboard. Glide typing, autocorrect, emoji, and predictions still matter every minute of the day. An AI keyboard you fight with is not worth the AI.
• What the AI actually does. Some rewrite your tone, some fix grammar, some only transcribe your voice. Match the feature to what you need, not to the marketing copy.
• What it costs, in money and in data. Free keyboards often pay for themselves with your typing data. Some paid ones do too. The price tag is only half the cost.

The table below leads with the variables most people skip: where your voice is processed, whether it works without a signal, and whether your data stays on the device. Yaps is the first row because it is the only keyboard that answers "on-device" to all three.

1. Yaps: The Best Private AI Keyboard for Android

Yaps is the keyboard for everyone who reached the question at the top of this article and did not like the usual answer. It is a full Android keyboard, the kind that replaces Gboard or SwiftKey while you use it, with one defining trait: the AI runs on your phone, not on someone else's server.

Switch to Yaps and you get a familiar layout with glide typing, an emoji panel, clipboard history, and suggestions. The difference is the microphone in the keyboard itself. Tap it, speak, and your words appear in whatever app you are in. Every step of that, from hearing your voice to writing the text, happens on the device. You can put the phone in airplane mode, dictate a full paragraph into a message, and watch it land with no signal at all.

What you actually get inside the keyboard

Yaps is not a dictation gadget bolted onto a keyboard. It is a keyboard that quietly includes a voice productivity suite, and all of it runs locally.

The privacy difference, in one decision

Every keyboard in this list made one architectural choice that decides almost everything else: process the AI in the cloud, or process it on the phone. Yaps chose the phone. That single decision is why it needs one sensitive permission instead of five, why it works without a signal, and why there is no privacy policy to read closely.

A privacy policy is a promise. On-device processing is a fact. If your words never leave the phone, no breach, no subpoena, and no policy change can reach what was never sent.

Yaps for Android

Free, and free of the usual catches

The free tier covers 5,000 words a week of on-device dictation, shared across voice typing and read-aloud, and it resets every week. That is enough for most personal use, and it does not require an account. Paid plans through Google Play add unlimited dictation and other extras for people who lean on it all day.

The honest limits. Yaps dictation is English-first today, with more spoken languages arriving through 2026, and the keyboard layout ships in English, Spanish, French, German, and Brazilian Portuguese. Its on-device voice library is smaller than the desktop app's, and voice cloning is desktop-only. If you need a keyboard that dictates in fifty languages this afternoon, a cloud keyboard like Gboard will serve you better today. For everything else, the rest of this list is the case for Yaps.

Best for: anyone who wants a polished everyday keyboard with voice typing that stays private, works offline, and asks for almost nothing in return. Read the deeper private voice keyboard guide or the Yaps Android launch story for more.

2. Gboard: The Best Free Mainstream Keyboard

Gboard is the keyboard most Android phones ship with, and for good reason. It is free, fast, polished, and in 2026 it carries Google's Gemini AI for conversational writing help, smart replies, and live translation. Voice typing is genuinely good, especially on Pixel phones, where a meaningful share of it runs on-device.

The catch is the same catch it has always been. On most non-Pixel phones, voice typing routes to Google's servers by default, and the newer AI rewrite features route to a server everywhere because the models are too large to run locally. Gboard is also a Google product, which means your typing feeds the same account context as the rest of your Google life.

Best for: people who want the most polished free keyboard and are comfortable inside Google's ecosystem. If you are on a Pixel and trust Google with your voice, Gboard's offline mode is the closest mainstream keyboard to private. If you are not, see our breakdown of what Gboard sends to Google.

3. Microsoft SwiftKey: The Personalisation Champion

SwiftKey has spent over a decade learning how people type, and it shows. Its prediction engine adapts to your style faster than any mainstream rival, it supports an enormous range of languages with automatic switching, and it syncs your clipboard between Android and Windows. Microsoft Copilot is built in for rewrites and generative help.

Like Gboard, the AI that makes SwiftKey clever lives in the cloud. Predictions are local, but Copilot features and the smarter rewrites involve a server round trip, and SwiftKey's data flows run through Microsoft. It is an excellent keyboard if cross-device continuity matters more to you than keeping the AI on your phone.

Best for: heavy multi-device typists who live across Android and Windows and want best-in-class predictions and clipboard sync.

4. CleverType: The AI Writing Assistant in Keyboard Form

CleverType is the keyboard the rest of the internet's "best AI keyboard" lists keep crowning, and it is a capable tool. It wraps grammar correction, tone rewrites, and translation into the keyboard, so you can reshape a sentence from casual to formal without leaving the text field. For people who write a lot of business messages on the phone, that is a real time saver.

Two things to weigh. It is cloud-based, so your text travels to a server for the AI to work on it, and it is subscription-priced rather than free. If the rewriting is the feature you want most, it earns its keep. If you mostly want fast, private input, you are paying a monthly fee for features you will rarely touch.

Best for: professionals who want aggressive AI rewriting and tone control inside the keyboard and do not mind a subscription or cloud processing.

5. Samsung Keyboard: The Best Pick if You Own a Galaxy

If you carry a Galaxy phone, the best AI keyboard for you might already be installed. Samsung Keyboard now carries Galaxy AI Writing Assist, which lives in the keyboard toolbar and offers spelling and grammar fixes, tone and style rewrites, message composition, and real-time translation across more than forty languages. Samsung has confirmed the core Galaxy AI features stay free.

The processing is mixed: some Galaxy AI work happens on-device, some on a server, and the split is not always visible from the toolbar. It is a strong, convenient choice for Galaxy owners, but it is tied to Samsung hardware and Samsung's data practices, and it does not match a dedicated on-device keyboard for verifiable privacy.

Best for: Galaxy owners who want capable AI writing help built into the phone they already own, with no extra install.

6. Fleksy: The Fast, Privacy-Minded Veteran

Fleksy has been a favourite of speed typists for years, with gesture controls, low latency, and a long-standing stance of not selling user data. With over twenty million users, it is a known, trusted quantity, and most of its features keep your data close.

The honest note for 2026 is that Fleksy's pace of updates has slowed, and it has not chased the generative AI rewrite features that newer keyboards lead with. If you want raw typing speed and a privacy-respecting feel without a cloud AI layer, it is a fine pick. If you want the latest AI writing tools, it will feel a step behind.

Best for: speed-focused typists who value a lightweight, privacy-minded keyboard over the newest AI rewrite features.

7. GroqBoard: The Fast Cloud Voice Keyboard

GroqBoard is built around one idea: voice dictation that feels instant. It leans on fast cloud inference to transcribe several languages quickly, adds voice commands, and states that recordings are processed and then discarded rather than stored. For multilingual voice input where speed matters, it is genuinely impressive.

It is still a cloud tool, so your audio leaves the device to be transcribed, and the privacy story depends on the vendor honouring its retention promise. If you need quick voice typing across languages and on-device is not a requirement, it is worth a look.

Best for: multilingual users who want fast cloud voice dictation and are comfortable with audio leaving the phone.

8. HeliBoard: The Open-Source, Fully Offline Keyboard

HeliBoard is the keyboard for people who want to read the source and verify the claims. It is open-source, ships through F-Droid, and famously does not request the internet permission at all, which makes it offline by construction. There is no telemetry because there is no network to send it over.

Voice typing is not built in. HeliBoard expects you to pair it with FUTO Voice Input for on-device dictation, which means a second app and a little setup. As a private typing foundation, though, it is hard to beat, and it pairs naturally with the privacy-first philosophy behind Yaps.

Best for: privacy purists who want a verifiable, fully offline typing keyboard and do not mind adding a separate app for voice.

9. FUTO Keyboard: On-Device Voice With Open Licensing

FUTO is the closest thing on this list to Yaps in spirit. The FUTO Keyboard and FUTO Voice Input bring genuinely good on-device speech recognition to Android under a source-available license, and the result is private voice typing you can inspect. The community is active and the quality is real.

The trade-off is ergonomics. You install and wire together two apps, grant permissions in two places, and accept that documentation can lag releases. It is the strongest pick when open licensing is a hard requirement and you are willing to spend a few minutes on setup. For a polished single-install experience with voice, cleanup, and read-aloud already integrated, Yaps does the assembly for you.

Best for: open-source advocates who want on-device voice typing and value a source-available license above out-of-the-box polish.

10. Typewise: Privacy-First Typing With a Twist

Typewise takes privacy seriously, keeping data on the device and building its reputation on strong autocorrect that learns your patterns. It is a thoughtful, European take on a keyboard, and a fair choice if private typing is your priority and you are open to its distinctive layout.

It leans on typing rather than voice, and its newer AI features are lighter than the cloud heavyweights. As a private, autocorrect-first keyboard it holds up well; as a voice or generative AI tool it is not trying to compete.

Best for: typists who want a privacy-respecting keyboard with excellent autocorrect and are curious about a fresh layout.

What is the best AI keyboard for Android in 2026?

Yaps is the best AI keyboard for Android in 2026 for most people who care where their data goes. It is a full keyboard with on-device voice typing, on-device cleanup, and read-aloud, so your words never leave the phone, and it has a free tier of 5,000 words a week. Gboard is the best free mainstream pick if you are happy inside Google's ecosystem, and Microsoft SwiftKey is the best choice for prediction quality and cross-device clipboard sync.

What is the best free AI keyboard for Android?

Gboard is the best fully free mainstream AI keyboard, and it comes pre-installed on most phones. Yaps offers a free tier of 5,000 words a week of on-device voice typing with no account required, which is the best free option if privacy matters to you. HeliBoard and FUTO Keyboard are free and open-source if you want a verifiable offline stack.

Which AI keyboard does not send your data to the cloud?

Yaps, FUTO Keyboard, HeliBoard paired with FUTO Voice Input, and Typewise all keep your core typing and dictation on the device. Yaps is the most complete of these because it combines a polished keyboard, on-device voice typing, cleanup, and read-aloud in a single install. The mainstream keyboards (Gboard, SwiftKey, CleverType, Samsung Keyboard) all send at least their smartest features to a server.

Does Gboard send my voice to Google?

It depends on your phone. On Pixel devices, a meaningful share of voice typing runs on-device. On most other Android phones, Gboard's voice typing routes to Google's servers by default and only falls back to a degraded on-device path when you are offline. The newer AI rewrite features route to a server on every phone because the models are too large to run locally.

Is there an AI keyboard that works fully offline?

Yes. Yaps transcribes your voice on the phone, so dictation works in airplane mode, on the underground, and in any dead zone. FUTO Keyboard and HeliBoard with FUTO Voice Input also run voice typing offline. Cloud keyboards like CleverType, SwiftKey, and GroqBoard need a connection for their voice and AI features.

What is the best AI keyboard for voice typing on Android?

Yaps is the best AI keyboard for voice typing if you want it private and offline, because the microphone is built into the keyboard and every step runs on the device. GroqBoard is the best pick if you want fast cloud voice dictation across several languages. Gboard's voice typing is excellent on Pixel phones specifically.

Are AI keyboards safe to use?

It depends entirely on where the keyboard processes your data. Any keyboard can see everything you type, including passwords and messages, so the keyboard you choose is one of the most important privacy decisions on your phone. On-device keyboards like Yaps are the safest because your text and voice never leave the device. With cloud keyboards, your safety rests on the vendor's policies and security rather than on architecture.

What is the best AI keyboard for Samsung Galaxy phones?

Samsung Keyboard with Galaxy AI Writing Assist is the most convenient pick for Galaxy owners, since it is already installed and free, with grammar fixes, tone rewrites, and translation. If you want voice typing and AI cleanup that stay on the device across every app, install Yaps instead, which works the same on any Android phone from version 8.0 onward rather than depending on Samsung hardware.

Does CleverType cost money?

Yes. CleverType is a subscription keyboard, reported around 6.99 dollars a month, in exchange for its grammar correction and AI rewriting features. Gboard and Samsung Keyboard offer capable AI writing for free, and Yaps offers private on-device voice typing with a free tier, so the subscription only makes sense if aggressive cloud rewriting is the feature you most want.

Is Yaps better than Gboard?

For privacy and offline voice typing, yes. Yaps keeps your voice on the phone, works without a signal, and asks for one sensitive permission, while Gboard routes voice to Google's servers on most non-Pixel phones. Gboard is better if you want the widest language coverage, the deepest Google ecosystem integration, and a keyboard that is already installed. The right pick depends on whether you value private and offline over breadth and convenience.

What happened to the Grammarly keyboard?

Grammarly is retiring its standalone Android keyboard. Instead of a dedicated keyboard app, Grammarly now layers its writing feedback on top of whatever keyboard you already use, through its main Android app. That is why it is not a keyboard pick in 2026, even though several older roundups still list it.

Do AI keyboards drain your battery faster?

Not necessarily. On-device speech models on recent Android hardware can use less power than the constant streaming round trip a cloud keyboard needs, especially over cellular data. Heavy generative AI features are the bigger battery draw, and those tend to be cloud-based, so an on-device keyboard like Yaps is often gentler on your battery during normal use.

Can I use an AI keyboard in WhatsApp, Signal, and Slack?

Yes. Any Android keyboard installed as your system input method works inside every app that accepts text, including WhatsApp, Signal, Slack, Gmail, Notion, Chrome, and your banking apps. There is no per-app setup, because Android's keyboard system is application-agnostic. Yaps works everywhere for exactly this reason.

How do I switch my keyboard on Android?

Open Settings, then System, then Languages and input, then On-screen keyboard, and enable the keyboard you installed. Then set it as your default keyboard. Android will warn you that any keyboard can read what you type, which is not specific to one app: it is true of every keyboard, and it is exactly why choosing a private one matters.

The phrase "AI keyboard" hides a decision most reviews never make you confront. To give you smart features, a keyboard has to read what you type, and almost all of them answer that by sending your words to a server. That is the quiet default behind most of this list, and it is the reason the order matters.

For most Android users in 2026, start with Yaps. It is the most complete keyboard that runs its AI on your phone: voice typing, cleanup, and read-aloud all on-device, a polished keyboard underneath, one sensitive permission, and a free tier that covers most personal use. You can verify the privacy claim yourself in ten seconds by switching to airplane mode and dictating anyway.

Pick something else only for a specific reason. Choose Gboard if you are on a Pixel and live inside Google's ecosystem, SwiftKey if cross-device prediction is your priority, Samsung Keyboard if you own a Galaxy and want zero setup, HeliBoard or FUTO if a verifiable open-source stack is non-negotiable, or CleverType if aggressive cloud rewriting is the one feature you cannot live without. Each is a fine tool for that narrow case.

But the architectural choice outlasts any feature list. A keyboard you can trust in airplane mode is a keyboard that survives a server breach, a policy change, and an acquisition. Yaps is built that way on purpose.

Start with Yaps at yaps.ai, see the voice notes feature, or read the private voice keyboard guide for the deeper privacy story.