Grammarly is the best-known writing assistant. Quill, the writing assistant built into WorkBOS, watches your text the same way, underlining spelling, grammar and your company's own banned words as you type, and it lives where your business writing actually happens: your CRM notes, message templates, sequences and proposals. No extension, no extra subscription, and the live layer runs entirely on your device.
Grammarly is a superb general-purpose writing assistant with two decades of grammar tuning and a browser extension that follows you across the web; if you need writing help in every app you use, keep it. Quill's bet is different: business writing happens inside your business tools, and the assistant there should know your house style, your snippets and your merge fields, cost nothing extra, and keep your text on your device until you explicitly ask for an AI pass. For teams already running their back office on WorkBOS, Quill covers the everyday Grammarly ground, live spelling and grammar underlines, one-tap fixes, tone, rewrites, translation and drafting, and adds the parts a bolt-on extension cannot: an enforced company voice, snippets that fill from your records, and suggestions your admins can actually measure.
WorkBOS All-in-one + agents | Grammarly AI writing assistance | |
|---|---|---|
| Live spelling & grammar underlines as you type | ||
| One-tap fixes, ignore, personal dictionary | ||
| Live checks run entirely on your device Grammarly checks in its cloud; Quill's live layer is local and sends nothing until you ask for the AI pass | - | |
| Company style guide enforced in every suggestion Grammarly offers style guides on Business tiers; Quill applies yours on every plan that has it, in the AI pass and the live underlines both | Partial | |
| Banned words underlined while typing | ||
| AI rewrites, tone, summaries and drafting | ||
| Translation and multilingual drafting | ||
| Lives inside your CRM, invoicing, HR and sequences Grammarly floats above other tools; Quill is native to the fields your business writes in | - | |
| Snippets that fill from your business records both insert static text today; Quill snippets sit beside WorkBOS merge tokens, which fill on send surfaces like sequences and templates | Partial | Partial |
| Team analytics with kept-suggestion rate Grammarly reports usage; Quill also shows which suggestions people actually keep | Partial | |
| Works in every app via a browser extension deliberate: Quill lives inside WorkBOS, and the WorkBOS MCP connector is how outside assistants reach your workspace | - | |
| Plagiarism detection needs a licensed web corpus; planned as an integration, not improvised | - | |
| Depth of long-tail grammar catches our native rules cover the high-frequency slips and the AI pass covers the rest; Grammarly has twenty years of tuning here | Partial | |
| Included in the suite price | - | |
| White-label under your own brand on our White-label partner plan (quoted, not self-serve); custom domains are set up with our team | Partial | - |
Free forever for up to 5 seats (includes a metered taste of AI agents), Pro at $12/user/mo, Enterprise at $999/mo flat, and a White-label plan at $2,499/mo for unlimited resold sub-accounts. No card required to start.
Grammarly Free covers basics; Pro is ~$12/member/mo billed annually and Enterprise is priced on request. Quill is included with WorkBOS Pro and up at no extra per-seat charge. Pricing as of August 2026; see grammarly.com.
Projects, CRM, HR & payroll and real accounting, with approve-first AI agents doing the busywork. Start free, no card required.
Comparison reflects each product’s primary positioning and publicly documented capabilities as of June 2026; capabilities and plans change. Grammarly is a trademark of its respective owner; this page is independent and implies no affiliation or endorsement.