Acti vs Grammarly Keyboard: Task Execution vs Writing Polish
Acti is an emerging agentic keyboard that executes cross-app tasks from the keyboard. Grammarly Keyboard is a mature AI keyboard that checks grammar, detects tone, and improves clarity wherever you type. They solve completely different problems. Here's how they compare — and when to use each.
Acti
An agentic keyboard for iOS and Android that triggers searches, connected workflows, and custom skills from the keyboard. Recently launched and still evolving.
Full reviewGrammarly Keyboard
A mature AI writing keyboard. Checks grammar, detects tone, improves clarity, and suggests synonyms across supported apps. Freemium, available on iOS and Android.
Full reviewSide-by-Side Comparison
| Aspect | Acti | Grammarly |
|---|---|---|
| Category | Agentic keyboard (emerging) | AI keyboard (writing-first) |
| Core function | Executes cross-app tasks — search, book, share, compose | Improves writing quality — grammar, tone, clarity, synonyms |
| Platforms | iOS, Android | iOS, Android |
| Maturity | Early-stage, features evolving rapidly | Mature writing assistant with a long product history |
| Grammar checking | Not a feature | Advanced grammar, spelling, and punctuation checking |
| Tone detection | Not a feature | Detects and adjusts tone — professional, friendly, concise, and more |
| Clarity improvement | Not a feature | Suggests clearer sentence rewrites and removes wordiness |
| Task execution | Core capability — search, book, share, and compose across apps | Not a feature — improves text but does not execute actions |
| Search integration | Web search from keyboard with action-oriented results | No search integration |
| Text prediction | Context-aware suggestions tied to actions | Basic prediction; swipe typing and next-word are secondary features |
| Pricing model | Currently free — check current app listing | Freemium — free tier for basics, Premium for advanced features |
| Privacy model | Requires Full Access and broader permissions for agentic features | Cloud processing for advanced checks; review privacy settings for sensitive text |
| Best for | Reducing app-switching and executing tasks from the keyboard | Polished, professional writing across every mobile app |
Agentic keyboard (emerging)
AI keyboard (writing-first)
Executes cross-app tasks — search, book, share, compose
Improves writing quality — grammar, tone, clarity, synonyms
iOS, Android
iOS, Android
Early-stage, features evolving rapidly
Mature writing assistant with a long product history
Not a feature
Advanced grammar, spelling, and punctuation checking
Not a feature
Detects and adjusts tone — professional, friendly, concise, and more
Not a feature
Suggests clearer sentence rewrites and removes wordiness
Core capability — search, book, share, and compose across apps
Not a feature — improves text but does not execute actions
Web search from keyboard with action-oriented results
No search integration
Context-aware suggestions tied to actions
Basic prediction; swipe typing and next-word are secondary features
Currently free — check current app listing
Freemium — free tier for basics, Premium for advanced features
Requires Full Access and broader permissions for agentic features
Cloud processing for advanced checks; review privacy settings for sensitive text
Reducing app-switching and executing tasks from the keyboard
Polished, professional writing across every mobile app
Head-to-Head: Common Tasks
Which keyboard fits better for everyday tasks? Here is a practical breakdown.
Acti can help compose context-aware replies, but does not check grammar, tone, or clarity.
Purpose-built for this — checks grammar, suggests tone adjustments, and improves clarity in real time.
Caveat: For writing quality, Grammarly is the clear winner. Acti is designed for task execution, not writing polish.
Core use case — search and book restaurants without leaving the chat app.
Grammarly can help you write the reservation request more clearly, but cannot execute the booking itself.
Caveat: If you need to get things done, Acti is the tool. If you need to write well about getting things done, Grammarly helps.
Not a feature. Acti is not designed for writing quality improvement.
Strong grammar and spelling checking across apps where you type.
Caveat: Grammarly is the better fit for grammar checking; Acti is focused on action workflows.
Acti can surface recent links, locations, or content and share them without leaving the conversation.
Grammarly can help you write a clearer message asking for the link, but cannot find or share it.
Caveat: Acti's link-sharing depends on what it can access — recent browsing, saved items, etc.
Not a feature. Acti does not analyze or adjust tone.
Tone detection is a core feature — see how your message sounds and adjust to professional, friendly, or concise.
Caveat: Tone detection works well for English; other languages have more limited tone support.
Acti can reference recent conversations and app data to compose relevant replies.
Grammarly can polish whatever you type but does not understand conversation context.
Caveat: Acti's context awareness depends on permissions and may not cover all conversation history.
May request authorization for connected services used by a skill.
Cloud processing is used for some writing checks. Review current privacy settings for sensitive documents.
Caveat: Different trade-offs. Compare each product's current disclosure and enable only the features you need.
Feature availability varies by platform, region, and rollout stage. Both products are updated frequently. Check the current app listing for the latest capabilities.
Verdict by User Type
Acti is purpose-built for executing tasks without leaving your current app. Search, book, share — all from the keyboard.
Grammarly is a mature AI writing keyboard with grammar, tone, and clarity checking across supported apps.
Grammarly catches grammar errors, suggests tone improvements, and clarifies sentences before you hit send. Acti cannot do this.
Acti lets you search and book without leaving the chat. Grammarly can help you write about it clearly, but cannot execute the booking.
Both support Android. Choose Grammarly for writing feedback or Acti for connected skills and keyboard-triggered actions.
Install both keyboards on iOS and switch between them. Grammarly for writing-heavy tasks, Acti for action-oriented workflows. They complement each other.
Complementary, Not Competitive
Acti and Grammarly solve different problems and can work together. Use Grammarly when writing quality matters most (emails, documents, professional messages) and Acti when you need to get things done without app-switching (booking, searching, sharing). See our AI keyboards for writing and best agentic keyboard apps.