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Capit vs Grammarly

Side-by-side comparison of features, pricing, ratings, and alternatives.

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Capit
CapitTurn any image or video into five unique, ready-to-post social captions with AI.
Grammarly
GrammarlyAI-powered writing assistant for grammar, tone, and clarity.
Overview
Description

Capit is an AI-powered social media companion for Apple users that turns any photo or video into five unique, ready-to-post captions. Instead of staring at a blank caption box, you simply select your media, choose a tone, and Capit instantly generates copy that matches both the image and your intended voice. The app is backed by OpenAI's GPT-4V, which allows it to visually understand the content of your media and produce context-aware captions on the fly. Beyond basic generation, Capit includes a built-in caption editor for fine-tuning the output with extra spacing, hashtags, and other formatting. It also offers profiles so you can save your preferred settings for different social accounts, making it easy to switch between personal, business, or brand personas. For text-first workflows, the AI Write feature generates post copy directly from a description, such as advertising a seasonal sale or announcing a new product. Capit is positioned as a freemium app for content creators, social media managers, and anyone who posts regularly on social platforms. Currently available on iPhone, iPad, and Mac, the app is designed to streamline the posting workflow while keeping captions personalized and on-brand. With planned features like favorites, smarter hashtag suggestions, and Photos share sheet integration, Capit aims to become a more complete AI captioning toolkit for the Apple ecosystem.

Grammarly is an AI writing assistant that checks grammar, spelling, punctuation, and style in real time across browsers, desktop apps, and mobile keyboards. It integrates directly into Gmail, Google Docs, Microsoft Word, Slack, and thousands of other websites via a browser extension. Beyond basic correctness, Grammarly analyzes tone and clarity, suggesting rewrites to make writing more concise, confident, or friendly depending on the context and audience selected by the user. GrammarlyGO adds generative AI features for drafting emails, replying to messages, and rewriting passages on demand, while Grammarly Business adds brand style guides and analytics for teams that need consistent written communication across an organization.

Pricing
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Freemium

Free for basic corrections; Premium starts at $12/month, Business at $15/user/month.

Category
AI Writing & Content
AI Writing & Content
Best for
Social Media Managers
Professionals, students, and content teams
Specifications
Platform
iPhone, iPad, Mac
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Developer
Swift Fox Software LLC
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AI Backend
GPT4V by OpenAI
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Pricing Model
Freemium
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Caption Output
5 unique captions per generation
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Coming Features
Favorites, hashtag generation, share sheet integration
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Tones Available
Funny, Inspirational, Poetic, Casual
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Upcoming Platforms
Android and Web
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platforms
—
Web, Mac, Windows, iOS, Android
deployment
—
Browser Extension
open source
—
No
api available
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Yes
support options
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Help Center, Email
key integrations
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Gmail, Google Docs, Microsoft Word, Slack
Pros & Cons
Pros
  • One-tap generation of five unique captions from an image or video
  • Tone options like Funny, Inspirational, Poetic, and Casual help match your brand voice
  • Built-in editor makes it easy to refine captions with spacing and hashtags
  • Profiles let you save settings for multiple social accounts
  • Works across almost every app via browser extension
  • Good tone and clarity suggestions beyond basic grammar
  • GrammarlyGO speeds up drafting
  • Free tier is genuinely useful
Cons
  • Currently only available on iPhone, iPad, and Mac; Android and web versions are still in the planning stages.
  • Requires an internet connection and relies on OpenAI's GPT-4V service for caption generation.
  • Some useful features like favorites, hashtag generation, and share sheet integration are not available yet.
  • Collects personal information such as email, name, and IP address through third-party services.
  • Premium features behind a subscription
  • Occasional over-aggressive suggestions
  • Privacy concerns for some sensitive writing contexts
Community & Metrics
Upvotes
0
8
User rating
Not enough data
3.0 (2)

What reviewers say

Capit Reviews

No reviews yet.

Grammarly Reviews

3.0 (2)
Verified User

Good, not great

Grammarly is solid overall, though it's not perfect. On the plus side, good tone and clarity suggestions beyond basic grammar. That said, premium features behind a subscription, which held us back from rating it higher.

Verified User

Good, not great

Mixed feelings about Grammarly after using it for a while. On the plus side, free tier is genuinely useful. That said, privacy concerns for some sensitive writing contexts, which held us back from rating it higher.

Read all reviews →

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The Verdict

AI-generated from listing data

Capit offers fast, AI‑generated social captions on Apple devices, while Grammarly provides a broader, cross‑platform writing assistant with richer integrations and team features.

Key differences

  • •Platform coverage – Capit is iPhone/iPad/Mac only; Grammarly works on Web, Windows, macOS, iOS, Android.
  • •Core purpose – Capit creates 5 ready‑to‑post captions per image/video; Grammarly focuses on grammar, tone, plagiarism, and drafting.
  • •Integration ecosystem – Grammarly plugs into Gmail, Docs, Word, Slack, etc.; Capit has no listed integrations.
  • •Team collaboration – Grammarly offers brand style guides and business plans; Capit has no collaboration features.
  • •Pricing model – Both have freemium tiers, but Grammarly’s paid tiers are clearly defined; Capit’s premium pricing is unknown.
DimensionWinner

Pricing & value

Grammarly lists clear paid tiers ($12‑$15/month) while Capit’s premium pricing is unspecified.

Grammarly

Ease of use / learning curve

Grammarly works via browser extensions across apps; Capit is limited to Apple devices and requires installation.

Grammarly

Features & depth

Capit delivers five unique captions per media with tone presets, directly targeting social posting needs.

Capit

Integrations & ecosystem

Grammarly integrates with Gmail, Google Docs, Microsoft Word, Slack; Capit lists no integrations.

Grammarly

Collaboration

Grammarly provides brand style guides and business plans for teams; Capit has no collaboration tools.

Grammarly

Scalability

Grammarly offers business subscriptions; Capit’s scaling options beyond individual use are not specified.

Grammarly

Security & privacy

Both collect personal data (email, IP); no detailed privacy differences are provided.

Tie

Choose Capit if…

Social media managers on iPhone/iPad/Mac needing quick, AI‑generated captions.

Choose Grammarly if…

Professionals or teams needing comprehensive writing assistance across devices.

Common questions

Can I use Capit on Windows or Android?

No, Capit is currently only available on iPhone, iPad, and Mac; Android and web versions are planned but not released.

What does Grammarly’s free tier include?

The free tier provides basic grammar, spelling, and punctuation checks; premium features like tone detection and GrammarlyGO require a paid plan.

Which tool better supports team brand guidelines?

Grammarly offers brand style guides for team consistency, whereas Capit has no collaboration or brand‑guideline features.