Anyword vs Grammarly in 2026: Predictive copy scoring vs the everywhere writing assistant
Anyword scores your marketing copy for predicted conversion rate. Grammarly rides along inside every app you already write in, catching errors and rewriting for clarity.
Anyword
Grammarly- Grammarly works inside 500,000+ apps and websites via browser extension, desktop app, and mobile. Anyword works primarily through its own platform plus a Chrome extension, with no equivalent ambient reach.
- Anyword scores copy variants for predicted conversion rate with a stated 82% accuracy. Grammarly has no conversion-prediction feature; its AI generation is capped at 100 prompts/month on Free and 2,000 on Pro.
- Grammarly has a genuine free plan covering grammar and spelling with no character limits. Anyword has no free tier, only a 7-day trial on paid plans starting at $49/month.
- Grammarly Pro is $12/month billed annually per seat; Anyword Starter is $49/month for one seat, a meaningfully different price point for individual users.
- Anyword's custom-trained AI models built on your own campaign performance data require the Business tier and custom pricing. Grammarly's Enterprise brand tones and unlimited style guides are the closest equivalent for consistency at scale, not performance prediction.
- Anyword is SOC 2, ISO 27001, GDPR, and HIPAA certified. Grammarly states it does not sell or monetize user content and does not allow third parties to train on it, with additional BYOK encryption and DLP on Enterprise.
Anyword and Grammarly rarely compete for the exact same budget line, but they get compared often because both are AI writing tools with enterprise tiers and per-seat pricing. Anyword's whole reason for existing is predicting which copy variant will convert, trained on real A/B test data, aimed at performance marketers running ads and email at volume. Grammarly's whole reason for existing is being present everywhere you type, from Gmail to Slack to Google Docs, catching grammar issues and offering full paragraph rewrites without you having to open a separate app. One is a scoring engine for marketing copy; the other is a ambient proofreader for all writing.
The tools at a glance
Anyword
Performance-focused AI content platform that predicts which copy will convert before you publish it
Anyword's core feature is a prediction model that scores generated copy variants for likely conversion rate, based on training data from real A/B tests across channels and audiences. The company states 82% accuracy versus 52% for a generic model without that performance context, and documents customer cases like a jump from 2.5% to 8% email click-through rate. This makes Anyword a fit for teams where copy performance is a measurable line item, not just a quality bar.
Anyword is not built to be an ambient proofreader. There is no equivalent to Grammarly's browser extension riding along in every app you use; instead, Anyword is a platform you generate copy inside, plus a Chrome extension and a Performance API for injecting its scoring data into other tools. It also has no free tier, so evaluating it costs a 7-day trial window rather than an indefinite free plan.
| Feature | Starter $49/mo | Data-Driven $99/mo | Business Custom | Enterprise Custom |
|---|---|---|---|---|
| Performance predictions/mo | 50 | 100 | 250 | 500+ |
| Free tier | No | No | No | No |
| Custom-trained AI models | No | No | Yes | Yes |
| API access | No | No | No | Yes |
Grammarly
AI writing assistant for grammar, clarity, tone, and brand consistency across every platform you write on
Grammarly's product is reach: a browser extension, desktop app, and mobile app that surface grammar, clarity, and tone suggestions inline wherever you write, without requiring you to change tools. The free plan handles grammar and spelling with no character limits, which makes it the lowest-friction entry point of any tool in the AI writing category. Pro adds full paragraph rewrites, tone adjustment, and plagiarism and AI content detection.
For teams, Enterprise adds unlimited style guides and brand tones so every writer gets corrected toward the same standard automatically, plus SAML SSO and data loss prevention for IT and compliance needs. What Grammarly does not do is predict how copy will perform; its suggestions are about correctness and clarity, not conversion outcomes, so it is not a substitute for a performance-marketing scoring tool.
| Feature | Free $0/mo | Pro $12/mo (annual) | Enterprise Contact sales |
|---|---|---|---|
| Full paragraph rewrites | No | Yes | Yes |
| AI text generation prompts | 100/mo | 2,000/mo | Unlimited |
| Brand tones | No | 1 | Unlimited |
| SAML SSO and DLP | No | No | Yes |
Head-to-head feature comparison
| Feature | Anyword | Grammarly |
|---|---|---|
| Free plan | No | Yes |
| Performance/conversion prediction | Yes (82% stated accuracy) | No |
| Ambient browser/app integration | Chrome extension only | 500,000+ apps and sites |
| Full paragraph rewrites | No (variant generation instead) | Yes (Pro and Enterprise) |
| Plagiarism and AI detection | No | Yes (Pro and Enterprise) |
| Brand voice or brand tone controls | Yes (1 voice on Starter) | Yes (1 tone on Pro, unlimited on Enterprise) |
| Custom-trained AI models | Business tier and above | No |
| Team/brand consistency tools | Yes (5 voices on Business) | Yes (style guides, analytics dashboard) |
| API access | Enterprise only | No |
| Enterprise security certifications | SOC 2, ISO 27001, GDPR, HIPAA | No third-party training on user content; BYOK and DLP on Enterprise |
| Starting paid price | $49/mo | $12/mo (annual, Pro) |
Which should you choose?
AnywordGrammarlyGrammarlyAnywordGrammarlyAnywordThese two tools solve different problems and, for many marketing teams, are not actually substitutes for each other. Grammarly is the tool you keep open in the background across every app to catch grammar and tone issues in everyday writing. Anyword is the tool you open specifically to decide which of three ad variants to run, based on a prediction model rather than a hunch. A performance marketing team could reasonably subscribe to both: Grammarly for the team's general writing quality, Anyword for the specific job of scoring campaign copy before spend goes against it.
Bottom line
Pick Grammarly first if your need is broad writing quality across everyday communication, since the free plan alone covers most individual use cases and Pro at $12/month is inexpensive for what it adds. Pick Anyword if your job specifically involves choosing between copy variants for paid campaigns and a measurable lift in conversion rate justifies the $49-plus monthly cost. Running both is a legitimate setup for larger marketing teams rather than a sign of redundant spending.
Frequently asked questions
Can Grammarly predict which version of an ad will convert better, like Anyword does?
No. Grammarly has no conversion-prediction feature; its suggestions focus on grammar, clarity, tone, and full paragraph rewrites. Anyword is the tool built specifically to score copy variants for predicted conversion rate using a model trained on real A/B test data.
Is Grammarly cheaper than Anyword?
Yes, meaningfully. Grammarly has a genuine free plan and a Pro tier at $12 per month billed annually. Anyword has no free tier at all, only a 7-day trial, with its lowest paid plan at $49 per month.
Does Anyword work inside Gmail and Google Docs the way Grammarly does?
Not to the same extent. Anyword has a Chrome extension that brings performance scoring to some web-based writing, but it does not have Grammarly's scale of integration across 500,000-plus apps and websites, including native support in Gmail, Google Docs, Slack, and Microsoft Word.
Which tool is better for an agency writing client marketing copy at volume?
It depends on the deliverable. For paid ad copy and email campaigns where conversion rate is the metric that matters to the client, Anyword's prediction scoring adds measurable value. For general content quality, tone consistency, and catching errors across a team's day-to-day writing, Grammarly Enterprise with brand tones and style guides is the better fit.
Does either tool offer enterprise security certifications?
Anyword is certified for SOC 2, ISO 27001, GDPR, and HIPAA, and does not use customer data to train third-party models. Grammarly states it does not sell or monetize user content and does not allow third-party providers to train on it, with Enterprise plans adding BYOK encryption and data loss prevention controls.