Grammarly

Rising

AI Writing

Visit

Heat Score

7-Day Change

+13

A.R.C. Grade

—

Pricing

freemium

A writing assistant used by 30 million people daily that checks grammar, rewrites sentences for clarity, adjusts tone, and now generates full drafts with its AI writing feature.

What the signals say about Grammarly

Grammarly holds a HookFlow heat score of 41/100 in AI Writing, currently showing a clear upward trajectory in community and search signals. Over the last 7 days its score moved +13 points (up), -38 over 30 days. On the Lock-In Index it scores 67/100 (high lock-in, with significant switching cost).

Heat Score

0–100 viral momentum index combining social buzz, search trends & growth velocity

14-day trend

-2

24h

+13

-38

30d

Computed from 5 live sources in the latest pipeline run — more sources, higher confidence.

Heat Score Breakdown

Creator Buzz (30%)6

Search Interest (25%)65

Community Discussion (20%)10

Growth Momentum (25%)85

Forecast

Stable

low confidence

Now

→

+7 days

→

+14 days

A.R.C. Score

A.R.C. ratings are calculated for developer infrastructure and API-first tools. This tool hasn't been evaluated yet or falls outside the A.R.C. scope.

🔓Data Lock-In Index

67/ 100

Lower = more portable. 0 = fully open, 100 = maximum lock-in.

✗ Webhooks Out✓ Bulk Export✗ Open Formats

Pricing

freemium

Best For

Teams & Solo