Captions vs Grammarly
Side-by-side comparison of Captions and Grammarly.
AI studio that edits and captions your videos automatically
AI writing assistant for grammar, tone, and clarity
What they are
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.
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.
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
if you need ai writing. Starts at 12/mo.
Which to choose
Captions and Grammarly 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 Captions and Grammarly.
Pricing checked 3 Jun 2026.