Grammarly is better for inline style and tone adjustments across Gmail, Docs, and web apps. ProWritingAid goes deeper on structural feedback, repetitive phrasing, and long-document reports. If your weekly need is quick polished emails and posts, Grammarly fits naturally. If you draft long articles or manuscripts, ProWritingAid's reporting is more useful.

Weekly workflow test

Run the same real task in both tools for one week. Score on: time-to-first-result, corrections needed, export/import quality, and monthly cost at your expected volume. The winner should be obvious by day three.

Decision summary

• Pick the tool that fits the weekly job you actually repeat.
• Keep the other only if it covers a different workflow you cannot do otherwise.
• Set a 30-day trial for the runner-up; cancel unless usage is weekly and verified.