Grammarly-AI Writing Assistant

Review by eFreeware

Grammarly is an Android writing assistant from Grammarly, Inc. On a phone, the app's job is narrower and more useful than a full desktop editor: it watches what you type in other apps and flags grammar, spelling and punctuation problems as they happen, so you can fix a message before you send it. The download is free, there are no ads, and optional in-app purchases sit alongside the core checker.

The reason to consider it is placement. Most writing help on Android means copying text into a separate app, fixing it, and pasting it back. Grammarly instead works inside the apps where you already write, which is the difference between a tool you use occasionally and one that runs in the background of your day. It has been installed more than 50 million times and holds a 4.3 average from 263,888 ratings, figures that suggest a large number of people found the trade-off worth making.

Here is a look at what the app offers in purchases and where a tool like this fits into a realistic writing routine.

Rewriting text with generative AI

The feature the developer leads with is the rewrite tool. You select a piece of text you have already written, choose to improve it, and the app generates alternative versions for you to consider. The point is not a single corrected sentence but a set of options, so you keep control of the final wording rather than accepting whatever the checker produces.

Those options are framed around intent. The developer lists versions that shorten a passage, add more description, sound more confident, or read more formally, among other adjustments. That is a sensible way to present rewriting, because the problem with most mobile drafting is rarely a missing comma; it is that a message rambles, hedges, or sounds colder than you meant. Being able to see a tighter and a warmer version of the same paragraph side by side is more useful than being told something is technically wrong.

The most recent update describes the assistant as delivering suggestions through a floating widget, and notes tone detection and rewrites among the changes. It also advises adjusting battery settings so the app can run in the background for uninterrupted help. That last point is worth remembering: a checker that stays available while you move between messaging, mail and social apps is more useful than one you have to keep open.

Everyday checking while you type

Underneath the rewrite feature is the part most people will use daily. The app checks grammar as you type, catches common typos through its spelling and proofreading functions, and handles punctuation, which the developer describes as advanced correction rather than a simple comma rule. Tone is checked alongside these, so a message that reads more bluntly than intended can be flagged before it goes out.

Every correction comes with a short, clear explanation. A checker that silently swaps words teaches you nothing; one that tells you why the change was made gives you a chance to stop repeating the mistake. For anyone writing in English as a second language, or simply writing more on a phone than they used to, that feedback loop is the difference between a crutch and a tutor.

The app is built to sit alongside the keyboard you already use, and it works with Android keyboards such as Gboard and SwiftKey. That matters because keyboard habits are hard to break. A writing assistant that layers on top of your preferred keyboard asks for almost nothing.

The Grammarly Keyboard for Android is being discontinued, and a support article has the details. Anyone who remembers the standalone keyboard should read that before installing, since the app now positions itself as an assistant working with whatever keyboard is already on the phone.

What Premium adds

The app is free to download and shows no ads, but it does offer in-app purchases, and the developer separates a set of advanced features under the Premium label. Those features are aimed at style rather than correctness: vocabulary enhancement, clarity improvements, tone adjustments, word choice, formality level and fluency. In other words, the paid tier is pitched at making decent writing better.

Premium adds tone suggestions, real-time feedback and word choice ideas. That is a reasonable division. Basic grammar and spelling are the kind of thing a user notices immediately and expects for nothing; vocabulary and formality suggestions are refinements that only matter once the fundamentals are covered.

I would treat the vocabulary and word-choice suggestions as the interesting part of the paid tier, because they address a real limitation of phone writing. When you are typing with two thumbs, you reach for the first word that fits and move on. Being offered a sharper alternative, with the option to decline it, is a small nudge that can lift the quality of a message without slowing you down much.

Permissions, privacy and what the app needs

A tool that reads what you type in other apps is asking for something significant, and the developer is direct about it.

With permission, it can gather usage and device details. Details sit in the User Trust Guidelines, the terms and the privacy policy, plus a separate California privacy notice. If you are considering the app, that documentation is the place to check the details, since the permission itself is broad by necessity.

The developer's own framing is that Premium carries the advanced suggestions, with vocabulary, clarity, tone, word choice, formality and fluency listed among them.

Where it fits in a writing routine

The clearest use case is correspondence you send from a phone and cannot easily revise afterward. A job application reply, a message to a client, a comment on a professional post: these are short pieces of writing where a typo or a harsher tone than intended carries a cost out of proportion to the effort involved. A checker that runs while you compose fits that situation better than one that requires a separate editing session.

The rewrite feature suits a different moment, when you have something written but are not happy with it. Rather than deleting and starting again, you select the passage and look at the alternatives the app generates, choosing whichever version matches the impression you want to leave. That is a lighter way to edit than rewriting from scratch, and it works well for the medium-length messages that are too long to polish by feel and too short to justify real editing.

There is a limit worth acknowledging, and it comes from the app's own focus. This is an English writing assistant, built around grammar, spelling, punctuation, tone and style in English. The app suits people who write in English and want help correcting and improving that writing as they type. It is a proofreader and editor, and it is good to be clear with yourself about whether that is the gap you are trying to fill.

For students, job seekers, freelancers and anyone whose work involves a steady flow of written messages, the combination of always-on checking and optional rewriting is a coherent package. The paid tier reaches for polish. Which of those you need depends on how much of your writing is judged on style rather than accuracy.

A writing assistant worth keeping switched on

Grammarly earns a place on an Android phone by being present where the writing happens. It checks grammar, spelling, punctuation and tone as you type, works with the keyboard you already use, and adds generative AI rewrites when you want alternatives rather than corrections.

It needs accessibility permission to read and process text in other apps, which is a meaningful grant. Usage and device details may be gathered if you agree.

I would suggest it to people who write a lot of English on their phone and want mistakes caught before they are sent: students, freelancers, job seekers, anyone corresponding with clients or colleagues from a handset. If you want a broader productivity tool or help in a language other than English, this is not the app for that job. For its specific purpose, the install numbers and the 4.3 average suggest plenty of users have decided it does that job well.

What's new in version 2.118.100055

Grammarly’s latest Writing Assistant, now delivering writing suggestions through a sleek floating widget With our new AI-powered rewrites, Grammarly harnesses the power of generative AI to give you compelling alternative versions to consider - adjusting for length, fluency, tone, and more! • For uninterrupted assistance, adjust your battery settings to allow Grammarly to run in the background • Tone detection and rewrites • Memory management improvements • Bug fixes and performance improvements