Grammarly: AI Keyboard & Voice

Productivity

6.8~~/10~~

Our score

★ 4.3 Google Play·50M+ installs

Reviewed by Editorial Team, ScoredApps editorial · updated 2026-10-06

Screenshots

Dark-green promo screen reading Trusted by 40 million people every day, with a Gmail draft and an iOS keyboard menu with Grammarly selected

Rewrite card titled Formal, professional rewrite of appointment request, with underlined text and Professional and Diplomatic tone chips

WhatsApp chat with Mentor where the word peek is flagged and the keyboard bar offers pique, peeking and peek

Message to a Landlord about a broken heater, with a Tone Detector card rating it Disapproving and Confused

LinkedIn hiring post rewritten under Make the text more engaging, with Confident, Engaging and Fluent chips

Dictation view in a message to Maya, with the transcribed text above a sound-wave icon and cancel and confirm buttons

About Grammarly: AI Keyboard & Voice

Grammarly's phone app checks spelling, grammar and tone as you type in other apps, adds AI rewrites, and on iPhone includes a dictation mic that removes filler words. The platforms differ: iOS ships its own keyboard, while Android has only a floating widget over Gboard or SwiftKey. The catch is the paywall. Tone changes and clarity advice need Premium, $29.99 a month in the US App Store, and reviewers say the free rewrite allowance shrank.

App information

DeveloperSuperhuman Platform Inc

Version2.117.100053 (Android) · 15.0.0 (iOS)

Size347 MB (iOS)

Price / In-appFree

Contains adsNo

In-app purchasesYes

Content rating12+

Requires (Android)Android 10+

Requires (iOS)iOS 17.4+

Offline modeChecks, rewrites and dictation need an internet connection; Android drafts stay on the phone

Interface languagesEN, FR, DE, IT, PT, ES

Store rating (Google Play)4.3 from 263,845 ratings

Installs50M+

Updated by developer2026-09-30

Data checked2026-10-06

Specs come from the official store listings and were last checked on 2026-10-06. Developers change pricing and requirements — check the store page before installing.

Grammarly Review: Solid Checks, a Shrinking Free Tier, Flaky Android

Free Covers Spelling and Tone; Premium Is $29.99 a Month

The Free plan on the company's plans page covers mistake checking, a view of your writing tone and 100 AI prompts a month. The App Store text marks vocabulary and clarity advice and tone transformations as Premium only. Apple's US listing sells Premium at $29.99 monthly, $59.99 quarterly and $139.99 yearly, and Google Play shows a $29.99 to $139.99 range. Store Premium includes 1,000 AI prompts a month, according to the help center; the web-only Pro plan doubles that, adds team tools and is not offered to people who subscribed through a store. The free allowance is the shaky number. A November 2025 Play review reports one free rewrite a day instead of 100 a month, and a September 2026 developer reply mentions changed prompt limits. Prices are regional and can change.

Dictation Mic: Whisper Transcripts With Filler Words Removed

On iPhone the keyboard toolbar has a mic icon. Tap it and a branded screen appears briefly before recording starts; the text arrives only after you stop, not word by word. The transcript drops filler words and self-corrections and adds punctuation, and the company's speech-to-text page says the audio runs through OpenAI Whisper plus a clean-up layer. On iOS 26 you swipe back to your app by hand before speaking, unless Background Microphone is switched on in settings. Dictation needs internet and keeps no history, and the help center says audio is not stored or used to train models. Afterwards the AI assistance can shorten, expand or change the tone of the dictated message.

Android Gets a Floating Widget, Not a Keyboard

There is no Grammarly keyboard on Android. The Play listing describes a widget that appears over Gboard, SwiftKey or any other keyboard, and a help article says it needs overlay and accessibility access. It switches itself off in financial, streaming and medical apps, and drafts live only on the phone and are deleted on logout or reinstall. Play lists Android 10 or later, while a help article warns that versions older than Android 13 may not work. Samsung and Xiaomi owners get long battery and autostart checklists, and 2026 reviews describe the widget vanishing, permissions resetting and long texts coming out scrambled. The Editor for documents exists on iPhone but not on Android.

Pros

Suggestions cover 20+ languages, and the iPhone keyboard types in six
iPhone dictation removes filler words and adds punctuation, with no stored audio
Tone Detector shows how a message may read before you send it
Android widget can be blocked app by app from a Blocked apps list
Rated 4.7 on the App Store and 4.3 across 260,000+ Google Play ratings

Cons

Free AI allowance is unclear: 100 prompts listed, one rewrite a day reported
Premium costs $29.99 a month in the US App Store, and Pro is web-only
Android build is a widget that reviewers say vanishes or loses permissions
Needs internet, plus Full Access on iPhone or accessibility access on Android

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Verdict

The score rests on dependable checks in any app and a clean-up dictation mic on iPhone, held back by a free tier that keeps shrinking, a $29.99 monthly Premium and an Android widget that reviewers say drops out. Take it if you write emails and messages on an iPhone and want tone feedback. Android users should test the widget in their main apps first. Skip it if you want unlimited free rewrites or a keyboard that never asks for accessibility access.

Core function8.0Spelling, grammar and tone checks work in any app, plus iPhone dictation clean-up; 2026 reviews still report scrambled long texts.

Ease of use7.0iPhone setup needs a keyboard added and Full Access; Android needs overlay and accessibility permissions, and the widget can block the view.

Monetisation5.5Premium costs $29.99 a month in the US App Store, and reviewers report one free rewrite a day, not 100 a month.

Performance6.0Vanishing widgets, resetting permissions and scrambled text fill 2026 Android reviews; help pages carry battery fixes for Samsung and Xiaomi.

Privacy & permissions6.5Full Access on iPhone and accessibility on Android are required; audio is not stored, but the iOS label lists tracking data.

6.8out of 10 · weighted average of the five scores above

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Frequently asked questions

Is the Grammarly keyboard app free?

Yes, the app is free to install, and the Free plan checks spelling, grammar and tone, with 100 AI prompts a month on the plans page. Clarity, vocabulary and tone-change suggestions need Premium. Recent Play reviews report a tighter free rewrite limit, so expect the free AI quota to be lower than listed.

Does Grammarly have voice typing on iPhone?

Yes, through the mic icon in the Grammarly Keyboard toolbar on iPhone. It transcribes after you stop speaking, removes filler words and adds punctuation, and needs internet and microphone permission. On iOS 26 swipe back to your app by hand before speaking unless Background Microphone is on. The Android listing describes no dictation.

How much does Grammarly Premium cost on a phone?

Apple's US listing shows $29.99 a month, $59.99 a quarter and $139.99 a year, and Google Play shows a $29.99 to $139.99 range. The help center says store Premium includes 1,000 AI prompts a month, while the web-only Pro plan is $30 monthly or $144 yearly. Prices are regional and can change.

How do I cancel Grammarly Premium bought in the app?

Cancel in the store that billed you, such as Subscriptions in your Apple ID on iPhone or Payments & subscriptions in Google Play, at least 24 hours before renewal. Cancelling stops renewal while paid features last to the period's end. Refunds for App Store purchases go through Apple, and uninstalling the app does not cancel the plan.

What are good alternatives to Grammarly on a phone?

Gboard is free on Android with no ads or in-app purchases and more than 900 language varieties. Microsoft SwiftKey AI Keyboard is free with ads and covers 700-plus languages. QuillBot offers a free AI writing keyboard with in-app purchases. Gboard and SwiftKey also work beneath Grammarly's Android widget, so they complement it more than replace it.