Reviews of standalone AI writing tools – and this site has covered several, from Jasper to Grammarly to Copy.ai – tend to skip a step that actually matters for a lot of people: checking what’s already sitting inside software they’re paying for anyway. Microsoft 365 Copilot, Google Gemini inside Workspace, and Apple Intelligence’s Writing Tools are the three most people already have some access to, whether they’ve opened them or not, and for a meaningful share of everyday writing tasks, one of them already covers the job a $20-a-month standalone subscription would otherwise be doing.
Why this comparison is different from a typical “AI writing tool” roundup
The tools reviewed on this site under headings like “best AI writing tools for X” are almost all third-party products you add on top of your existing software – a browser extension, a separate app, a separate login. Copilot, Gemini, and Apple Intelligence aren’t add-ons; they’re built into software most professionals and consumers already use daily. That changes the actual decision in front of most people: not “which AI writing tool should I subscribe to” but “do I actually need a new subscription, or does what I’m already paying for already do this.”
It also changes what “widely adopted” means for this category specifically. A standalone tool earns adoption one user signup at a time. These three arrive already installed, or one toggle away from active, inside software with an existing enterprise or consumer install base most third-party AI writing tools will never match by user count alone – which is exactly why checking them first, before adding a new subscription, is worth the five minutes it takes.
Microsoft 365 Copilot vs Google Gemini vs Apple Intelligence Writing Tools
| Tool | Where it lives | Pricing | Strongest at | Best fit |
|---|---|---|---|---|
| Microsoft 365 Copilot | Word, Outlook, Excel, PowerPoint, Teams | Paid per-seat add-on on top of a Microsoft 365 subscription | Deep integration across the full Office suite, drafting and rewriting inside documents and email you’re already working in | Organizations already standardized on Microsoft 365 |
| Google Gemini (Workspace) | Docs, Gmail, Sheets, Meet, Drive | Bundled into many Google Workspace plans, no separate AI fee on those tiers | Long documents, research-heavy drafting, and writing tasks that benefit from Google’s broader search and research strength | Organizations and individuals already living in Google Workspace |
| Apple Intelligence Writing Tools | System-wide on Mac, iPhone, iPad – works inside nearly any text field, including third-party apps | Included at no extra cost with a compatible device | Quick proofreading, tone adjustment, and summarizing anywhere you’re typing, not just inside one app | Anyone on a compatible Apple device who wants light writing help without opening a separate app |
The practical dividing line is less about writing quality and more about where the help shows up. Copilot and Gemini are tied to specific productivity suites and largely require a paid tier before the AI features are fully available. Apple Intelligence Writing Tools work at the operating-system level, inside almost any app where you’re typing – a Notes entry, a third-party email client, a Slack message – at no additional cost on a supported device, which is a meaningfully different value proposition than either of the other two.
Use case walkthrough: rewriting a stiff internal email before sending it
Someone drafting an internal update that reads too formally or too abruptly can select the text on any Apple Intelligence-enabled device and choose a friendlier or more concise tone directly, with no separate app to open. On Windows inside Outlook, Copilot does the equivalent rewrite from within the email itself, with the advantage of also being able to pull context from other emails or documents already in the same Microsoft 365 environment. Neither requires drafting in a separate chatbot window and pasting the result back in, which is the extra step most third-party writing tools still require unless they’ve built a dedicated browser extension.
Use case walkthrough: turning a rough meeting transcript into a clean summary
A Google Meet transcript combined with a set of Drive documents is exactly the kind of multi-source writing task Gemini in Workspace is built around – drafting a summary or follow-up email informed directly by material that’s already sitting in Drive, without manually copying transcript text into a separate tool first. The same task inside a Microsoft-based team runs through Copilot pulling from Teams transcripts and related Outlook or SharePoint content instead. The advantage in both cases is the same: the AI already has access to the surrounding material, so the summary doesn’t start from a blank context window the way a general-purpose standalone chatbot would.
Use case walkthrough: proofreading and reformatting text inside an app that has no AI features of its own
A lot of everyday writing happens inside apps that will probably never ship their own AI writing feature – a niche note-taking app, an older CRM’s comment field, a third-party forum’s post editor. Apple Intelligence Writing Tools work there too, because the feature operates at the system text-input level rather than being built into any specific app. Proofreading, summarizing, or reformatting a block of text into a bulleted list works the same way regardless of which app that text field happens to belong to, which is a genuinely different design choice than either Copilot or Gemini, both of which are scoped to their own respective app ecosystems.
Pricing tiers
Microsoft 365 Copilot is a per-seat add-on priced on top of an existing Microsoft 365 subscription, and it is not bundled in for free at the standard consumer or small-business tiers – budget for it as its own line item, and check current per-seat pricing directly since promotional small-business rates have shifted more than once. Google Gemini’s writing features are included at no separate charge on a number of Google Workspace business tiers, which is a meaningfully different cost structure than Copilot’s stacked add-on model – confirm which specific Workspace plan you’re on, since not every tier includes the same feature depth. Apple Intelligence Writing Tools carry no subscription cost at all beyond owning a compatible device running a current enough operating system, which is the simplest cost story of the three but also the narrowest in scope, since it only offers proofreading, rewriting, tone adjustment, and summarizing rather than open-ended drafting from a blank page.
Common mistakes people make with this category
The most expensive mistake is subscribing to a standalone AI writing tool for a job one of these three already covers for free or for a cost already being paid. Before adding a new line item, spend an afternoon actually testing what’s built into the productivity suite already in use – a lot of the “I need an AI writing tool” instinct turns out to be solved by turning on a setting that was already available.
The second mistake, in the other direction, is assuming a built-in tool covers everything a purpose-built writing tool does. None of these three is meant to replace a tool built specifically for long-form content marketing, SEO-optimized blog drafting, or brand-voice-consistent copy at scale – that’s a genuinely different job, and the third-party tools reviewed elsewhere on this site are built for exactly that scale and specificity in a way a general-purpose built-in writing assistant isn’t trying to match.
Third, people sometimes assume all three tools are interchangeable and pick based on which one they’ve heard of most, rather than which ecosystem their actual work already lives in. The realistic choice for most people isn’t “which of these three is best” in the abstract – it’s “which one is already sitting inside the software I use every day,” since that’s what determines whether it actually gets used or quietly forgotten after the first try.
Who this is actually for
Anyone already paying for Microsoft 365 or Google Workspace who hasn’t checked whether their plan includes AI writing features, and anyone on a reasonably current Apple device who wants light writing help without adding a new app or subscription. This category is specifically for closing the gap between “I’m considering an AI writing subscription” and “I should check what I already have first.”
Who should look elsewhere
Content teams doing high-volume, brand-voice-consistent marketing copy, SEO-optimized long-form drafting, or anything requiring the kind of dedicated workflow and brand-memory features built into tools like Jasper or Copy.ai will outgrow these built-in options quickly – they’re designed for everyday writing tasks, not as a content production pipeline. Anyone whose writing work lives entirely outside the Microsoft, Google, or Apple ecosystems (a Linux-based workflow with none of the three, for instance) won’t find much to use here either.
Frequently asked questions
Do these built-in tools send my writing to the cloud the same way a standalone AI tool would? It varies by tool and by task complexity. Apple has emphasized on-device processing for many Apple Intelligence features, escalating to a more private cloud processing tier only for tasks that need more computing power than the device has, while Copilot and Gemini generally process requests in the cloud as part of their respective platforms. Check each vendor’s current privacy documentation if data handling specifics matter for your use case, since these policies get refined over time.
Can I use more than one of these at once? Yes, and a lot of people effectively do without realizing it – someone on a Mac using Google Workspace for email might get Apple Intelligence’s system-wide proofreading and Gemini’s Gmail-specific drafting help simultaneously, in different contexts, with no conflict between them.
Is the writing quality actually comparable to a dedicated AI writing tool? For everyday tasks like proofreading, tone adjustment, and short-form drafting, the gap has narrowed considerably. For long-form, brand-consistent, or SEO-specific writing at volume, dedicated tools still generally offer more control and workflow features built specifically for that job.
Verdict
None of these three is trying to be the best AI writing tool on the market – each is trying to be the AI writing help that’s already there when you need it, inside software you’re using anyway. Copilot wins for Microsoft-standardized organizations wanting deep Office integration. Gemini wins for Google Workspace users, especially on longer or research-heavy documents. Apple Intelligence wins on breadth – it works nearly everywhere you type, at no added cost, even though its scope is narrower than the other two. Check these before adding a new subscription; a real share of what people are about to pay for elsewhere is quietly already available.
How to try it
Turn on the AI writing feature inside whichever of these three you already have access to and run it against a real email, document, or note you were about to write anyway – the honest test of whether you need a separate subscription is whether the built-in option still leaves a real gap once you have actually used it on your own work.
Try It
Try Apple Intelligence: https://www.apple.com/apple-intelligence/
Try Google Gemini: https://gemini.google.com
Try Microsoft Copilot: https://copilot.microsoft.com
Reviewed by AIToolPickr – part of the Auburn AI network. We do not accept paid placements; this review is independent. AIToolPickr may earn an affiliate commission if you sign up for a paid plan via our links, at no cost to you.
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