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Grammarly vs WRITER

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Free plan
Only Grammarly (WRITER has paid plans only)
Public API
WRITER has one; not confirmed by us for Grammarly
Higher Trust score
Grammarly — 94 vs 80 for WRITER
Best fit
Grammarly: Anyone writing in a browser, Word or email who wants corrections in place · WRITER: Enterprise marketing teams automating content and campaign workflows under brand rules
Platforms
Grammarly: Web, Chrome extension, Windows, macOS, iOS, Android · WRITER: Web

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

GrammarlyGrammar, tone and rewriting help inside every appWRITEREnterprise agent platform where teams build and run multi-step playbooks grounded in company knowledge, brand voice and governance.

Side by side

FactGrammarlyWRITER
CategoryGrammar & ProofreadingAI Agents & Autonomous Workers
Pricing modelFreemiumPaid
Starts at$12/mo—
Public APINot confirmedYes
Trust score94 / 10080 / 100
PlatformsWeb, Chrome extension, Windows, macOS, iOS, AndroidWeb, API
CompanySuperhumanWriter, Inc.
Launched20092020
Last verifiedOct 16, 2026Oct 29, 2026

What our research says

Grammarly

Still the default for catching mistakes inside other people's software, but the free tier has quietly become an AI-prompt meter and the honest price is $30 unless you commit to a full year.

Pros

  • Runs inside the apps people already write in rather than as a separate editor
  • Free tier still covers spelling, grammar and tone detection with no time limit
  • Pro folds in plagiarism and AI-text detection that rivals charge for separately

Cons

  • The $12 headline is the annual rate; paying monthly costs $30
  • Free AI allowance is 100 prompts a month and depletes quickly
  • No public API, so it cannot be embedded in another product
  • Enterprise pricing is not published anywhere on the site

WRITER

WRITER is built for large marketing, sales and support organisations that want governed AI agents tied to their own data and brand rules, with admin controls that security teams expect. Individuals and small businesses looking for an inexpensive writing assistant will find it oversized and hard to price without talking to sales.

Pros

  • Governance features such as audit logs, guardrails and role-based access
  • Knowledge Graph and connectors ground outputs in company data
  • Own Palmyra models with the option to use other LLMs
  • 14-day free trial of Starter without a credit card

Cons

  • No published price for any plan
  • Starter is capped at 5 users, 5 Playbooks and 3 active connectors
  • Most advanced orchestration and connectors are Enterprise-only

Which one fits

Choose Grammarly if you need

  • Anyone writing in a browser, Word or email who wants corrections in place
  • Teams enforcing a house style guide across people who are not writers
  • Non-native English speakers who want fluency rewrites, not just error flags

Choose WRITER if you need

  • Enterprise marketing teams automating content and campaign workflows under brand rules
  • Regulated companies that need audit logs, SSO and HIPAA or SOC 2 paperwork
  • Organisations that want agents grounded in internal knowledge via a managed graph

Grammarly vs WRITER: the questions people ask

Is Grammarly cheaper than WRITER?

Grammarly starts at $12/mo. An entry price for WRITER is not confirmed by us yet, so check its pricing page before you compare.

Does Grammarly or WRITER have a free tier?

Grammarly has a free tier; WRITER has paid plans only.

Which has a public API, Grammarly or WRITER?

WRITER ships a public API, as of our last verification. A public API for Grammarly is not confirmed by us — check its developer docs before you plan an integration.

More comparisons

All Grammarly alternatives →All WRITER alternatives →Browse all Grammar & Proofreading →