Grammarly vs Captions
Side-by-side comparison of Grammarly and Captions.
AI writing assistant for grammar, tone, and clarity
AI studio that edits and captions your videos automatically
What they are
Grammarly
Grammarly is the most widely adopted AI writing assistant, with over 40 million daily users, offering real-time grammar, spelling, clarity, and tone suggestions across browsers, Word, Google Docs, email, and more. It polishes writing without copy-pasting. Its paraphrasing and generation features are secondary to its core grammar and clarity strengths.
Captions
Captions is a mobile-first AI video editor aimed at creators who produce talking-head content for social media. It auto-generates captions, removes filler words, corrects eye contact, and can clone your voice for overdubs. The app targets solo creators who want a post-production shortcut, though its desktop feature set is still catching up to its mobile counterpart.
if you need ai writing. Starts at 12/mo.
if you need video editing and ai writing. Starts at 9.99/mo.
- +Auto-captions are fast and accurate across multiple languages
- +Eye contact correction is genuinely useful for teleprompter footage
- +Filler word removal works without audible cuts in most cases
Which to choose
Grammarly and Captions both cover ai writing, so this is a real either-or for some teams. The right pick depends on which one's wider feature set and pricing fit how you work.
Read the full reviews for Grammarly and Captions.
Pricing checked 3 Jun 2026.